Page 1 ® R&S NRQ6 Frequency Selective Power Sensor User Manual (;ÜTê2) 1178369202 Version 14...
Page 2 This document describes the following models and options with firmware version 03.40 and higher: ● ® R&S NRQ6 (1421.3509K02) ● ® R&S NRQ6‑K1 (1421.4705K02) ● ® R&S NRQ6‑K2 (1421.4740K02) ● ® R&S NRQ6‑K3 (1421.4770K02) This document describes the following accessories: ●...
Page 3: Table Of Contents
® Contents R&S NRQ6 Contents 1 Safety and regulatory information............11 Safety instructions...................... 11 Labels on the product....................12 Warning messages in the documentation..............13 Where to find key documents on Rohde & Schwarz..........13 2 Welcome....................14 Documentation overview....................14 2.1.1 Getting started manual....................14 2.1.2...
Page 4 ® Contents R&S NRQ6 LAN PoE+ interface.....................32 Host interface......................34 Trigger 2 I/O (TRIG2)....................34 Reference I/O (REF)....................34 Clock I/O (CLK)......................35 Local oscillator I/O (LO)....................35 Fan openings.......................35 5 Operating concepts................36 R&S NRP‑Toolkit......................36 5.1.1 Versions and downloads....................36 5.1.2...
Page 5 ® Contents R&S NRQ6 Resolution bandwidth filters..................57 7.3.1 Filter characteristics...................... 57 7.3.2 Automatic filter type selection..................58 7.3.3 Choosing the correct filter type..................59 RF input attenuation....................61 Top pane parameters....................62 8 Measurement modes and result displays..........66 Continuous average mode..................66 8.1.1...
Page 6 ® Contents R&S NRQ6 9.2.4 Holdoff time........................95 9.2.5 Trigger jitter........................95 9.2.6 Trigger sender usage....................95 9.2.7 Trigger parameters......................96 Correction settings..................... 99 9.3.1 Corrections in the RF path.................... 99 9.3.2 Corrections in the IF path....................101 9.3.3 Correction parameters....................104 Mixer settings......................
Page 7 ® Contents R&S NRQ6 12.7 Configuring measurement settings.................138 12.7.1 Configuring a continuous average measurement............138 12.7.2 Configuring a trace measurement................141 12.7.3 Configuring an ACLR measurement................144 12.7.4 Configuring an IF spectrum..................145 12.7.5 Configuring an I/Q trace mode..................146 12.7.6 Configuring the trigger....................147 12.7.7...
Page 8 ® Contents R&S NRQ6 12.13 Using the status register..................202 12.13.1 General status register commands................202 12.13.2 Reading the CONDition part..................203 12.13.3 Reading the EVENt part....................203 12.13.4 Controlling the ENABle part..................203 12.13.5 Controlling the negative transition part................204 12.13.6 Controlling the positive transition part.................
Page 9 ® Contents R&S NRQ6 17.4 Disposal........................234 List of commands................236 Index....................242 User Manual 1178.3692.02 ─ 14...
Page 10 ® Contents R&S NRQ6 User Manual 1178.3692.02 ─ 14...
Page 11: Safety And Regulatory Information
Intended use The R&S NRQ6 is intended for precise and fast power measurements in development and for monitoring and maintenance purposes. Main applications are TX power calibration, band-limited power measurements on mul- tistandard radios (MSR), fast power servoing and calibration of multiple active antenna modules for beamforming.
Page 12: Labels On The Product
® Safety and regulatory information R&S NRQ6 Labels on the product Reconfigure or adjust the product only as described in the product documentation or the specifications document. Any other modifications can affect safety and are not per- mitted. Never open the casing of the product. Only service personnel authorized by Rohde &...
Page 13: Warning Messages In The Documentation
® Safety and regulatory information R&S NRQ6 Where to find key documents on Rohde & Schwarz Table 1-2: Labels regarding sensitive components Electrostatically sensitive components Indicates sensitivity to touch. Follow the instructions in the product documentation to avoid product damage.
Page 14: Welcome
2.1.1 Getting started manual Introduces the R&S NRQ6 and describes how to set up and start working with the product. Includes basic operations and general information, e.g. safety instructions, etc. A printed version is delivered with the power sensor.
Page 15: Specifications Documents And Product Brochures
2.1.5 Specifications documents and product brochures The specifications document, also known as the data sheet, contains the technical specifications of the R&S NRQ6. It also lists the firmware applications and their order numbers, and optional accessories. The brochure provides an overview of the instrument and deals with the specific char- acteristics.
Page 16: Key Features
R&S NRQ6 Key features 2.2 Key features The R&S NRQ6 sensor sets standards in RF performance and usability. Outstanding key features are: ● Combines the advantages of a measurement receiver (dynamic range, linearity & video bandwidth) and a conventional diode or thermal power sensor (stability, absolute accuracy &...
Page 17: Preparing For Use
® Preparing for use R&S NRQ6 Choosing the operating site 3 Preparing for use Here, you can find basic information about setting up the product for the first time. ● Unpacking and checking..................17 ● Choosing the operating site..................17 ●...
Page 18: Considerations For Test Setup
® Preparing for use R&S NRQ6 Considerations for test setup 3.3 Considerations for test setup Pay particular attention to the following aspects when handling sensors. Handling the sensor ► CAUTION! Hot surfaces. Under certain conditions, the maximum surface tempera- tures of the sensor can exceed the limits defined in the EN 61010-1 standard, safety requirements for electrical equipment for measurement, control and labora- tory use.
Page 19: Connecting To A Dut
® Preparing for use R&S NRQ6 Connecting to a DUT ● Minimum distance between the fan openings and any object is 10 cm. 3.4 Connecting to a DUT For connecting the sensor to a DUT, use the RF connector. See also Section 4.1, "RF...
Page 20: Powering The Sensor
® Preparing for use R&S NRQ6 Connecting a cable to the host interface 3.5 Powering the sensor The electrical power for the sensor is supplied over the LAN PoE+ interface. See also Section 4.3, "LAN PoE+ interface", on page 32.
Page 21: Connecting To A Controlling Host
21. 3.7.1.1 Using a LAN connection There are different ways to connect the R&S NRQ6 to a computer according to the available equipment. The power for the R&S NRQ6 is supplied over the LAN PoE+ interface. Setup with a PoE+ Ethernet switch Figure 3-1: Setup with a PoE+ Ethernet switch User Manual 1178.3692.02 ─...
Page 22 Preparing for use R&S NRQ6 Connecting to a controlling host = Signal source (DUT) = R&S NRQ6 = RJ.45 Ethernet connector 4, 6 = RJ.45 Ethernet cable = Computer = Ethernet switch supporting PoE+ power delivery 1. NOTICE! Incorrectly connecting or disconnecting the sensor can damage the sen- sor or lead to incorrect results.
Page 23 "Establishing a connection to the network" on page 24. Setup with a PoE+ injector Figure 3-3: Setup with a PoE+ injector = Signal source (DUT) = R&S NRQ6 = RJ.45 Ethernet connector 4, 6 = RJ.45 Ethernet cable = Computer = PoE+ injector = AC supply 1.
Page 24 ® Preparing for use R&S NRQ6 Connecting to a controlling host 5. Establish a network connection between the sensor and the computer. Establishing a connection to the network There are two methods to establish a network connection: ● Sensor and computer are connected to a common network (Infrastructure network).
Page 25 <device name>-<serial number>, where: ● <device name> is the short name of your sensor. For example, the <device name> of the R&S NRQ6 is nrq6. ● <serial number> is the individual serial number of the sensor. The serial num- ber is printed on the name plate at the rear side of the sensor. It is part of the device ID printed above the barcode: ID: 1234.5678K02 - 123456 - Zd...
Page 26 Preparing for use R&S NRQ6 Connecting to a controlling host Example: Default host name: nrq6-123456 Extended host name: nrq6-123456.local Assigning the IP address Depending on the network capabilities, the TCP/IP address information for the sensor can be obtained in different ways: ●...
Page 27 ® Preparing for use R&S NRQ6 Connecting to a controlling host Setup ‑ ZKU cable Figure 3-5: Setup with an R&S NRP 1 = Signal source (DUT) 2 = Sensor 3 = Host interface 4 = R&S NRP‑ZKU or R&S NRP‑ZKC cable 5 = RJ.45 Ethernet cable...
Page 28 ® Preparing for use R&S NRQ6 Connecting to a controlling host Required equipment ● 1 to 4 sensors ● 1 R&S NRP‑ZK8 cable per sensor ● R&S NRP‑Z5 sensor hub ● External power supply, delivered with the R&S NRP‑Z5 sensor hub. The supplied external power supply is short-circuit proof and is also protected by an internal fuse.
Page 29: R&S Nrx Base Unit
® Preparing for use R&S NRQ6 Connecting to a controlling host 1 = Connect to AC power supply 2 = External power supply unit 3 = Connect to computer with USB host interface 4 = Optional: Connect to trigger source 5 = Optional: Connect to triggered device 6 = R&S NRP‑Z5 sensor hub...
Page 30 ® Preparing for use R&S NRQ6 Connecting to a controlling host Required equipment ● Sensor ● R&S NRP‑ZK8 cable to connect the sensor to the R&S NRX. ● R&S NRX Setup Figure 3-7: Setup with an R&S NRX base unit and one sensor...
Page 31: Sensor Tour
® Sensor tour R&S NRQ6 RF connector 4 Sensor tour This section provides an overview of the available connectors and LEDs of the sensor. Figure 4-1: Sensor overview = RF connector, see Section 4.1, "RF connector", on page 31 2, 10 = Fan openings, see Section 4.9, "Fan...
Page 32: Status Information
® Sensor tour R&S NRQ6 LAN PoE+ interface using a torque wrench with the recommended nominal torque. For details, see Sec- tion 3.4, "Connecting to a DUT", on page 19. 4.2 Status information See (2) in Figure 4-1. The status LED shows the state of the sensor by color and flashing frequency.
Page 33 ® Sensor tour R&S NRQ6 LAN PoE+ interface The LAN PoE+ interface also connects the sensor to a local area network (LAN) for remote control, remote operation and data transfer. Sensor requires PoE+ The electrical power for the sensor is provided by PoE+, power over Ethernet. The IEEE 802.3at standard specifies 25.4 W per port.
Page 34: Host Interface
See (5) in Figure 4-1. The female SMA connector is used as an input or output for a trigger signal. For input and output specifications, read the label on the R&S NRQ6 casing and the specifications document. Further information: ●...
Page 35: Clock I/O (Clk)
If you supply the local oscillator signal externally, you can use an external signal as a sampling clock instead of the internal signal (input). For input and output specifications, read the label on the R&S NRQ6 casing and the specifications document.
Page 36: Operating Concepts
® Operating concepts R&S NRQ6 R&S NRP‑Toolkit 5 Operating concepts ● R&S NRP‑Toolkit.....................36 ● Web user interface....................38 ● Remote control......................42 ● R&S NRX........................ 43 ● R&S Power Viewer....................44 5.1 R&S NRP‑Toolkit Before you start using an R&S sensor or sensor module, we recommend installing the latest R&S NRP‑Toolkit.
Page 37: R&S Nrp-Toolkit For Windows
® Operating concepts R&S NRQ6 R&S NRP‑Toolkit 5.1.3 R&S NRP‑Toolkit for Windows The R&S NRP‑Toolkit installer for Windows-based systems contains the components described in the release notes. To install the R&S NRP‑Toolkit 1. Start the R&S NRP‑Toolkit installer on the Windows-based computer.
Page 38: Web User Interface
Web user interface 5.1.3.1 Performing a firmware update The Firmware Update program is part of the R&S NRP‑Toolkit for Windows. You can use the firmware update progam to update the R&S NRQ6 firmware. For further details, refer to Section 11, "Firmware update", on page 117.
Page 39: Layout Of The Main Dialog
® Operating concepts R&S NRQ6 Web user interface Parameter description The parameters of the web user interface are described together with background information in the following sections: ● Section 7, "Adapting to the test signal", on page 54 ● Section 8, "Measurement modes and result displays",...
Page 40 32. You can also display detailed information. Section 15.2, "Error messages", on page 224. If the R&S NRQ6 is in remote mode, the status is displayed next to the status LED, see Figure 5-2. Sensor information (3) in Figure 5-1.
Page 41 ® Operating concepts R&S NRQ6 Web user interface If you place the cursor over the name of a parameter field, a short description of the parameter function is displayed. If you place the cursor over a parameter field, the short form of the corresponding remote control command is displayed.
Page 42: Remote Control
► Click the value to change to the other value. 5.3 Remote control You can remote control the R&S NRQ6 easily. The change to remote control occurs "on the fly" and has no influence on the manual operation. Switching to remote control 1.
Page 43: R&S Nrx
Operating concepts R&S NRQ6 R&S NRX The R&S NRQ6 changes into remote mode. The web user interface is locked and becomes darker. The status is displayed next to the status LED. Figure 5-2: Locked web user interface during remote control Further information: ●...
Page 44: R&S Power Viewer
® Operating concepts R&S NRQ6 R&S Power Viewer a) Turn off all test signals before zeroing. An active test signal during zeroing cau- ses an error. b) Press the [Zero] key of the R&S NRX. c) Select "Zero All Sensors".
Page 45 ® Operating concepts R&S NRQ6 R&S Power Viewer 5. Select a measurement type. 6. Start the measurement. User Manual 1178.3692.02 ─ 14...
Page 46: Measurement Basics
RBW > 40 MHz, the R&S NRQ6 works in zero-IF mode. 6.2 Measurement procedure in principle Unlike thermal or diode power sensors, the R&S NRQ6 is frequency-selective. That means, you go about measuring differently than you are accustomed from the conven- tional power sensors.
Page 47: Measurement Duration
103. 5. Start the measurement. To get measurement results quickly, the R&S NRQ6 offers numerous autoset features. In the web user interface, several settings are bundled together and controlled by an "Autoset" button. In remote control, each automatic setting is executed by a separate command.
Page 48: Improving Measurement Results
R&S NRQ6 with a conventional 3-path-diode sensor that has a class leading dynamic range. Unlike the 3-path diode sensor, the R&S NRQ6 has no auto-averaging feature. Therefore, you have to define the measure- ment time manually when measuring with the R&S NRQ6.
Page 49 ® Measurement basics R&S NRQ6 Impact of measurement parameters on noise Figure 6-2: Measurement noise Figure 6-2 shows the resulting noise contribution for a fixed measurement time of 0.1 s. It is assumed that the filter settling time is far smaller than the integration time and that the noise floor power is far smaller than the power level.
Page 50: Potential Sources Of Error
6.6.1 Spurious response frequencies The hardware design of the R&S NRQ6 differs fundamentally from a spectrum ana- lyzer. Therefore, the R&S NRQ6 cannot provide a similar level of spurious response rejection. For isolated signals with small bandwidths and correctly specified measure- ment frequencies, this different design is no problem.
Page 51: Lo Leakage
Potential sources of error -100 Frequency / GHz Figure 6-4: Typical spurious response of R&S NRQ6 set at 1 GHz input frequency, 20 MHz resolution bandwidth and right sideband 1 = 1st harmonic (right sideband: 1 GHz) 2 = 3rd harmonic (left sideband: 2.900 GHz) 3 = 5th harmonic (right sideband: 4.900 GHz)
Page 52 These emissions have the frequency of the local oscillator or a multiple of it, the har- monics. The emissions can lead to mixing products in the DUT. For example if the DUT is a signal generator with level control, the LO leakage of the R&S NRQ6 can lead to a wrong level setting.
Page 53 ® Measurement basics R&S NRQ6 Potential sources of error The black line represents the LO leakage at 0 dB RF attenuation. The blue line repre- sents the LO leakage at 30 dB RF attenuation. User Manual 1178.3692.02 ─ 14...
Page 54: Adapting To The Test Signal
Automatic settings 7 Adapting to the test signal The R&S NRQ6 is a frequency selective power sensor. Before starting a measure- ment, you need to take the test signal and its properties into account. You can do that either automatically by using the autoset function, or by setting the fre- quency, filter, bandwidth and attenuation manually.
Page 55: Frequency Configuration
The center frequency defines the mixing frequency in the downconversion process. Signals outside of the analysis bandwidth are filtered out. However, the R&S NRQ6 is sensitive to signals at frequencies related to the harmonics of the conversion fre- quency.
Page 56: Frequency Adjustment For Narrowband Measurements
You can synchronize the reference frequencies of the R&S NRQ6 and the signal source. Make sure that the center frequency is specified accurately. Use the REF connector of the R&S NRQ6 to lock the R&S NRQ6 to the reference fre- quency of the signal source or vice versa.
Page 57: Resolution Bandwidth Filters
-120 dBm mum bandwidth 7.3 Resolution bandwidth filters The R&S NRQ6 supports different filter types. Each filter type is optimized for a differ- ent goal. Thus, it is possible to adapt the R&S NRQ6 to various measurement situa- tions. 7.3.1 Filter characteristics...
Page 58: Automatic Filter Type Selection
7-4. 7.3.2 Automatic filter type selection In many situations, it is appropriate to let the R&S NRQ6 automatically choose the filter type for the measurement. The selection process is based on the currently selected measurement mode and, for some modes, also on the resolution bandwidth.
Page 59: Choosing The Correct Filter Type
If you choose a filter with a high output sample rate, the resulting amount of data can become too huge for the R&S NRQ6 to process. The R&S NRQ6 indicates this condition by a static error due to insufficient memory.
Page 60 ® Adapting to the test signal R&S NRQ6 Resolution bandwidth filters Filter type Entered Pass BW 3 dB BW Stop BW Output Rise time Filter set- Equivalent sample rate tling time noise BW 5.4 μs 433.7 μs Flat 100 kHz 100.0 kHz...
Page 61: Rf Input Attenuation
® Adapting to the test signal R&S NRQ6 RF input attenuation Filter type Entered Pass BW 3 dB BW Stop BW Output Rise time Filter set- Equivalent sample rate tling time noise BW 560.4 μs Normal 1 kHz 1.0 kHz 5.1 kHz...
Page 62: Top Pane Parameters
® Adapting to the test signal R&S NRQ6 Top pane parameters To measure the noise power for the current RBW 1. Turn off the signal source. 2. Increase the average count until the measurement results are stable. 7.5 Top pane parameters Access: main dialog of the web user interface >...
Page 63 ® Adapting to the test signal R&S NRQ6 Top pane parameters Signal Check Opens the "Signal Check" dialog. It displays the intermediate frequency (IF) spectrum of the test signal and the selected bandwidth. See also Section 8.4, "IF spectrum pre- view",...
Page 64 ® Adapting to the test signal R&S NRQ6 Top pane parameters Filter / Bandwidth For background information, see Section 7.3, "Resolution bandwidth filters", on page 57. <State> ← Filter / Bandwidth Enables or disables the automatic filter type selection. "Manual"...
Page 65 ® Adapting to the test signal R&S NRQ6 Top pane parameters Remote command: [SENSe<Sensor>:]INPut:ATTenuation:AUTO <Level> ← Attenuator Only available if "Manual" is set under <State>. Sets the input attenuation. Remote command: [SENSe<Sensor>:]INPut:ATTenuation S-Parameter For background information, see Section 12.7.7.5, "S-parameter correction",...
Page 66: Measurement Modes And Result Displays
Measuring modulated signals................. 68 ● Continuous average parameters................68 ● Continuous average result display................70 8.1.1 Averaging domains In continuous average and trace mode, the R&S NRQ6 supports three different aver- aging domains with the following characteristics. User Manual 1178.3692.02 ─ 14...
Page 67 ® Measurement modes and result displays R&S NRQ6 Continuous average mode Table 8-1: Averaging domains Power averaging Logarithmic aver- Amplitude averag- aging Command option "Power" "Video" "Linear" Averaging unit Watt Bias caused by noise floor High Medium Uncertainty caused by noise floor...
Page 68: Measuring Modulated Signals
® Measurement modes and result displays R&S NRQ6 Continuous average mode Signal type "Averaging Domain" Explanation Continuous wave (CW) "Video" No noticeable bias for a signal-to-noise ratio equal to and above 8 dB. Increase in measurement uncertainty is negligible. Can be combined with noise cancellation.
Page 69 ® Measurement modes and result displays R&S NRQ6 Continuous average mode Moving Average......................70 Aperture Time........................70 Duty Cycle........................70 Autoset Starts a continuous measurement. Remote command: TRIGger:SOURce IMMediate INITiate:CONTinuous Trigger Mode "Trigger Mode" on page 96. Trigger Level "Trigger Level" on page 97.
Page 70: Continuous Average Result Display
Sets the duty cycle for measuring pulse-modulated signals. The duty cycle defines the percentage of one period during which the signal is active. If the duty cycle is enabled, the R&S NRQ6 considers this percentage when calculating the signal pulse power from the average power.
Page 71: Trace Mode
CALCulate:FEED 8.2 Trace mode In this mode, the R&S NRQ6 measures power over time. The number of measurement points and the measurement time is defined. The length of an individual measurement is determined from the ratio of total time and the defined number of measurement points.
Page 72 ® Measurement modes and result displays R&S NRQ6 Trace mode Averaging Domain......................72 Moving Averaging......................73 Additional Traces......................73 Autoset Adjusts the following: ● Adjusts the trace settings to the current signal. ● Optimizes the scaling of the x- and y-axes. ● Sets the trigger to ensure a stable presentation of the test signals.
Page 73: Trace Result Display
® Measurement modes and result displays R&S NRQ6 Trace mode Moving Averaging "Moving Average" on page 70. Remote command: [SENSe<Sensor>:]TRACe:AVERage:TCONtrol Additional Traces Enables or disables the display of additional traces. The additional traces show the measurement results of the auxiliary measurands, peak and random.
Page 74 ® Measurement modes and result displays R&S NRQ6 Trace mode To move the plot Use the mouse to move the plot in x- and y-direction. 1. Place the mouse over the x-axis. 2. With the left mouse button pressed, drag the x-axis to the right or left.
Page 75: Aclr Mode
® Measurement modes and result displays R&S NRQ6 ACLR mode Measurement sequence ● "Peak": Peak value of the samples per trace point, available in trace mode if the number of measured values is sufficient. See also Section 12.9.3, "Trace measurement results",...
Page 76: Aclr Result Display
® Measurement modes and result displays R&S NRQ6 ACLR mode Trigger Source.......................76 Trigger Delay.........................76 Aperture Time........................76 Autoset Starts a continuous measurement. Remote command: TRIGger:SOURce IMMediate INITiate:CONTinuous Trigger Mode "Trigger Mode" on page 96. Trigger Level "Trigger Level" on page 97.
Page 77: Dc Zeroing In Aclr Mode
If you use the LTE filter with 10 MHz, 15 MHz or 20 MHz resolution bandwidth, a DC offset can occur. For example with 20 MHz ACLR bandwidth, the R&S NRQ6 meas- ures internally with a total bandwidth of 100 MHz. If you measure signals of low power, the TX channel shows a DC offset.
Page 78: If Spectrum Preview
(R&S VSE) from Rohde & Schwarz. An application sheet describes the use of the R&S NRQ6 as an I/Q data source for the R&S VSE software. The application sheet has the title "VSE Feed (I/Q Capturing)" and is available at: www.rohde-schwarz.com/manual/NRQ6...
Page 79: Phase Coherent Measurements
Section 10.1, "Option management", on page 112. Using two R&S NRQ6, you can measure phase coherence in a multitone analysis. By measuring the relative phase error between the calibration port and each antenna port, you can calibrate active antenna modules for beamforming.
Page 80 Figure 4-1. Configuration for calibration 1. Enable the use of an external reference clock for the R&S NRQ6, to which the external reference is fed. 2. Establish a sender/receiver relationship for triggering: a) Configure the R&S NRQ6 that is fed the external reference as sender.
Page 81 Power Sensors Figure 8-3: Measuring the phase difference 1 = 2-port DUT (signal source) 2 = External reference fed into the reference clock of the sender R&S NRQ6. 3 = RF connector 4 = R&S NRQ6 5 = Sampling clock connection...
Page 82: Setting The Sample Rate
8.5.3 I/Q trace parameters Requires the I/Q data interface (R&S NRQ6‑K1). If a parameter requires an additional option, the option is listed in the parameter description. Access: main dialog of the web user interface > navigation pane > "I/Q"...
Page 83: Autoset
® Measurement modes and result displays R&S NRQ6 I/Q trace mode Autoset.......................... 83 Trigger Mode......................... 83 Trigger Level......................... 83 Trigger Source.......................83 Trigger Delay.........................83 Result Length........................ 83 Specify Bandwidth by....................84 Variable Bandwidth......................84 Desired Sample Rate....................84 Used Sample Rate......................84 Sync Mode........................
Page 84: Specify Bandwidth By
● RBW ≤ 5 MHz with normal filter type ● Sample rate ≤ 40 MHz If an exact value is set that is out of range, the R&S NRQ6 indicates a static error. See also Section 4.2, "Status information", on page 32.
Page 85: Power Servoing
This procedure can take several 10 ms, which is a long time for automated test applications. A R&S NRQ6 fitted with the power servoing option, combined with an R&S SGT100A signal generator, offers a faster solution. The R&S NRQ6 measures continuously and sends the results to the signal generator, using a serial interface.
Page 86 1. Connect the instruments as shown in Figure 8-4. 2. Make sure to connect the TRIG2 connector of theR&S NRQ6 to the USER 2 con- nector of the R&S SGT100A. 3. Connect all instruments and the computer to the local network.
Page 87: Measurement Configuration
® Measurement configuration R&S NRQ6 Controlling the measurement 9 Measurement configuration This section describes further settings for measurement configuration. Frequently used settings or settings that are only available in one measurement mode are described with the measurement mode. Further information: ●...
Page 88: Interplay Of The Controlling Mechanisms
® Measurement configuration R&S NRQ6 Controlling the measurement Repeating termination control Outputs a measurement result when the entire measurement has been completed. This means that the number of measurement cycle repetitions is equal to the set aver- age count. If the average count is large, the measurement time can be long.
Page 89 ® Measurement configuration R&S NRQ6 Controlling the measurement Example: Repeating termination control Further settings for this example: ● [SENSe<Sensor>:]AVERage:TCONtrol REPeat The measurement is started by the trigger event. One measurement lasts as long as the defined aperture time. As defined by the average count, after 4 measurements, the result is averaged and available.
Page 90 ® Measurement configuration R&S NRQ6 Controlling the measurement Example: Moving termination control Further settings for this example: ● [SENSe<Sensor>:]AVERage:TCONtrol MOVing ● TRIGger:COUNt Every measurement is started by a trigger event. One measurement lasts as long as the defined aperture time.
Page 91 ® Measurement configuration R&S NRQ6 Controlling the measurement Example: Average count = 1 [SENSe<Sensor>:]AVERage:COUNt For average count 1, the setting of the termination control has no impact. In both cases, the measurement runs for the duration of one aperture time. Then, settled data is available, and the sensor returns to the idle state.
Page 92 For average count 1, the setting of the termination control has no impact. In both cases, the measurement runs for the duration of one aperture time. Then, settled data are available, and the R&S NRQ6 returns to the idle state. ≠ IMMEDiate)
Page 93: Trigger Settings
® Measurement configuration R&S NRQ6 Trigger settings 9.2 Trigger settings Remote command reference: ● Section 12.7.6, "Configuring the trigger", on page 147 Contents: ● Trigger states......................93 ● Trigger sources....................... 93 ● Dropout time......................94 ● Holdoff time......................95 ● Trigger jitter......................
Page 94: Dropout Time
® Measurement configuration R&S NRQ6 Trigger settings Trigger source Description Remote commands to initiate the measurement "Trigger 2 I/O" Uses the digital input signal supplied using the TRIGger:IMMediate SMA connector. "Bus (*TRG)" Triggered by the remote command. *TRG TRIGger:IMMediate 9.2.3 Dropout time...
Page 95: Holdoff Time
CUV?. If MEAS is returned, this method can be used. 9.2.6 Trigger sender usage If the R&S NRQ6 is the trigger sender, the R&S NRQ6 outputs a digital trigger signal in sync with its own trigger event. The trigger signal is output at the selected port, "Host Interface"...
Page 96: Trigger Parameters
® Measurement configuration R&S NRQ6 Trigger settings If you trigger the trigger sender externally, use "Host Interface" as external trigger input port (trigger source) and "Trigger 2 I/O" as trigger sender output port or vice versa. 9.2.7 Trigger parameters Access: main dialog of the web user interface > navigation pane > "Trigger"...
Page 97 ® Measurement configuration R&S NRQ6 Trigger settings "Normal" Implies continuous measurements that are triggered internally. Corre- sponds to the following commands: ● INITiate:CONTinuous ● TRIGger:SOURce INTernal Control the trigger event by the Trigger Level or by clicking "Force". "Free Run"...
Page 98 "On" is set under Sender State. ● "Sender" is set under Sync Mode. Selects the port where the R&S NRQ6 outputs a digital trigger signal. See Sec- tion 9.2.6, "Trigger sender usage", on page 95. Remote command: TRIGger:SENDer:PORT Trigger 2 I/O Impedance Effective only if "External2"...
Page 99: Correction Settings
® Measurement configuration R&S NRQ6 Correction settings "Low" 50 kΩ Remote command: TRIGger:EXTernal<2...2>:IMPedance Sender State Enables or disables the trigger sender state. See Section 9.2.6, "Trigger sender usage", on page 95. If enabled, select the output port for the trigger signal under Sender Port.
Page 100 For power measurements close to or in the noise floor, you can use the noise correction in continuous average and trace mode. The noise figure varies with the frequency. The R&S NRQ6 uses a set of factory noise figures for different bandwidths. Alternatively, you can perform a zero calibration and use the determined noise figure until one of the following happens: ●...
Page 101: Corrections In The If Path
Level Offset. If you consider the attenuation of an attenuator located ahead of the R&S NRQ6 or the coupling attenuation of a directional coupler, use a positive offset. That means the R&S NRQ6 displays the power at the input of the attenuator or the directional coupler.
Page 102 3 dB frequency set to 1.166 kHz. For measuring multicarrier signals in zero-IF mode at low signal levels, enable the DC reject filter and set the LO frequency of the R&S NRQ6 in a space between two carri- ers. Figure 9-2: Inherent noise spectrum with DC reject filter disabled Figure 9-3: Inherent noise spectrum with DC reject filter enabled User Manual 1178.3692.02 ─...
Page 103 9.3.2.2 DC zeroing In zero-IF mode (RBW > 40 MHz), the R&S NRQ6 shows a large DC offset. This DC offset is caused by the reflection of the internal LO signal at the RF connector, leading to mixing products. This phenomenon is described in the specifications document as LO leakage at the RF input connector.
Page 104: Correction Parameters
® Measurement configuration R&S NRQ6 Correction settings Changing the DUT setup after the DC zeroing can result in a different mismatch, thus making the calibration of the DC offset invalid. Further information: ● Section 8.3.3, "DC zeroing in ACLR mode", on page 77 9.3.3 Correction parameters...
Page 105 ® Measurement configuration R&S NRQ6 Correction settings Remote command: CALibration<Channel>:ZERO:AUTO Γ Correction ← RF Path For background information, see Section 12.7.7.6, "S-gamma corrections", on page 165. <State> ← Γ Correction ← RF Path Enables or disables the use of the complex reflection coefficient of the signal source, Γ...
Page 106: Mixer Settings
103. Remote command: CALibration<Channel>:IQOFfset[:AUTO] 9.4 Mixer settings The mixer is a central part of the R&S NRQ6, as shown in Section 6.1, "Functional principle", on page 46. The center frequency defines the mixing (intermediate) fre- quency in the downconversion process.
Page 107: Local Oscillator Signal
107 9.4.1 Local oscillator signal By default, the R&S NRQ6 generates its local oscillator (LO) signal internally. You can output the local oscillator signal at the LO connector and use it for other devices. Also, you can input an external signal at the LO connector and use it instead of the internal LO signal.
Page 108 ® Measurement configuration R&S NRQ6 Mixer settings Local Oscillator (LO) - Source Sets the local oscillator source. "Internal" Uses the internal LO signal. "External" Uses the external LO signal fed into the LO connector. The internal LO generation is disabled.
Page 109: Sensor Settings
● Sensor parameters....................110 9.5.1 Clock source configuration By default, the R&S NRQ6 generates its conversion frequency, sampling clock and ref- erence clock internally. Alternatively, you can use external clock sources, see Table 9-2. Table 9-1: Internal clock frequencies Reference clock...
Page 110: Sensor Parameters
® Measurement configuration R&S NRQ6 Sensor settings Table 9-2: External clock sources Used connector Input frequency range Output frequency range Host interface connector (USB host) 20 MHz No output Section 4.4, "Host interface", on page 34. REF connector 10 MHz 10 MHz Section 4.6, "Reference I/O...
Page 111 Remote command: [SENSe<Sensor>:]SAMPling:CLKio:OUTPut[:STATe] Clock Distribution Mode - Use Ext. Sampling Clock Requires the phase coherent measurements option (R&S NRQ6‑K3). Configures the usage of the external sampling clock. Note: The usage of the external sampling clock requires an external LO signal. To avoid set- ting conflicts, the following combination is not allowed: ●...
Page 112: System Configuration
® System configuration R&S NRQ6 Option management 10 System configuration The settings for the system configuration do not directly affect the measurement. Remote command reference: ● Section 12.12, "Configuring the system", on page 187 10.1 Option management Optional features are available as options and are part of the firmware package. If you want to use an optional feature, you buy the option and, in return, receive a license key.
Page 113: System Parameters
Select the RSI file that you want to install. 7. Click "Apply". 8. Click "Reboot". The R&S NRQ6 performs a reboot. 9. Check whether the option is active. The name of the option is displayed under "Installed Options", for example "NRQ- K1".
Page 114 Remote command: SYSTem[:SENSor]:NAME Sensor Preset Click the "RST" button to perform a preset. The R&S NRQ6 stops the running mea- surement, changes to the continuous average measurement and awaits the start of a new measurement. User Manual 1178.3692.02 ─ 14...
Page 115 ® System configuration R&S NRQ6 System parameters Use the preset functionality to set the R&S NRQ6 to a well-defined state. The preset allows you to change parameter values from well defined starting point. Remote command: *RST Firmware Update Opens a dialog to start the firmware update. Alternatively, you can the Firmware Update program.
Page 116 R&S NRQ6 System parameters Device ID ← Enter License Key Displays the identification number that is unique for each R&S NRQ6. The string has the following structure: 1421.3509K02/<serial number> You need the device ID to order an option. Remote command: SYSTem:INFO? License Key ←...
Page 117: Firmware Update
® Firmware update R&S NRQ6 Updating the firmware 11 Firmware update ● Downloading the firmware update file..............117 ● Updating the firmware................... 117 11.1 Downloading the firmware update file Firmware update files of R&S sensors generally have an RSU extension, RSU mean- ing Rohde &...
Page 118 4. Under "Hostname, IP Address or Serial Port", enter the host name or the IP address of the R&S NRQ6 you want to update. If you have updated the firmware on your R&S NRQ6 before, the host name or address is displayed.
Page 119 For more details, see "To check the prerequisites" on page 118. 10. If you use the web user interface to operate the R&S NRQ6, press [F5] to reload the webpage. To update the firmware over USB A firmware update can take up to 5 minutes. Ensure that the update is not interrupted.
Page 120: Using The Web User Interface
9. Check if the update was successful. The firmware version in the "Identification" field must match the version you selected in the "Firmware" field. 10. If you use the web user interface to operate the R&S NRQ6, press [F5] to reload the webpage.
Page 121: Using Sftp
® Firmware update R&S NRQ6 Updating the firmware 3. In the navigation pane, select "System". 4. Click "Firmware Update". 5. Click "Browse" to select the RSU file for upload. The selected RSU is displayed, for example NRQx_03.30.24121801.rsu. 6. Click "Start Update".
Page 122: Using Remote Control
You want to update your R&S NRQ6 with the NRQx_03.30.24121801.rsu file. This file has a size of 10242884 bytes. To send the file to the R&S NRQ6 for updating the firmware, your application has to assemble a memory block containing: SYST:FWUP <block_data>...
Page 123 ® Firmware update R&S NRQ6 Updating the firmware The 10242905 bytes result from the values of the list above: 9 + 1 + 1 + 1 + 8 + 10242884 + 1 In a (pseudo) string notation, the memory block looks like this: SYST:FWUP #810242884<file_contents>0x0a,...
Page 124: Remote Control Commands
● Conformity Commands that are taken from the SCPI standard are indicated as "SCPI con- firmed". All commands used by the R&S NRQ6 follow the SCPI syntax rules. ● Asynchronous commands A command which does not automatically finish executing before the next com- mand starts executing (overlapping command) is indicated as an "Asynchronous...
Page 125: Common Commands
® Remote control commands R&S NRQ6 Common commands Units Units and prefixes, as defined by the international system of units (SI), are allowed and recognized. If you need decimal multiples and submultiples of a unit, you can use SCPI prefixes. Because SCPI uses only capital letters, it cannot distinguish between upper and lower case characters.
Page 126: Ese
® Remote control commands R&S NRQ6 Common commands Resets the following: ● Status byte (STB) ● Standard event register (ESR) ● EVENt part of the QUEStionable and the OPERation register ● Error/event queue The command does not alter the ENABle and TRANsition parts of the registers.
Page 127: Opc
® Remote control commands R&S NRQ6 Common commands *OPC Operation complete Sets bit 0 in the event status register when all preceding commands have been execu- ted. Send this command at the end of a program message. It is important that the read timeout is set sufficiently long.
Page 128: Adapting To The Test Signal
® Remote control commands R&S NRQ6 Adapting to the test signal Sets the service request enable register to the specified value. This command deter- mines under which conditions a service request is triggered. Parameters: <register> Range: 0 to 255 *RST:...
Page 129 ® Remote control commands R&S NRQ6 Adapting to the test signal Web user interface: ● Section 7, "Adapting to the test signal", on page 54 Remote commands: ..................129 [SENSe<Sensor>:]ADJust[:ALL] ................129 [SENSe<Sensor>:]BANDwidth:INFO? ................130 [SENSe<Sensor>:]BANDwidth:NOISe? ............... 130 [SENSe<Sensor>:]BANDwidth:RESolution ..............130 [SENSe<Sensor>:]BANDwidth:RESolution:CUV? ..............130 [SENSe<Sensor>:]BANDwidth:RESolution:TYPE...
Page 130 ® Remote control commands R&S NRQ6 Adapting to the test signal [SENSe<Sensor>:]BANDwidth:NOISe? Queries the effective noise bandwidth, which depends on the bandwidth and the type of the set resolution bandwidth filter. Suffix: <Sensor> Usage: Query only [SENSe<Sensor>:]BANDwidth:RESolution <bandwidth> Effective if RESolution is set.
Page 131 ® Remote control commands R&S NRQ6 Adapting to the test signal If you want to set the filter type automatically, use [SENSe<Sensor>:]BANDwidth: on page 131. RESolution:TYPE:AUTO[:STATe] Suffix: <Sensor> Parameters: <select> FLAT | NORMal | LTE | W3GPp *RST: FLAT Example:...
Page 132 ® Remote control commands R&S NRQ6 Adapting to the test signal [SENSe<Sensor>:]BANDwidth:SRATe:CUV? Queries the currently used sample rate. Suffix: <Sensor> Example: BAND:SRAT:CUV? Query 2.260000E+07 Response Usage: Query only Manual operation: "Used Sample Rate" on page 84 [SENSe<Sensor>:]BANDwidth:TYPE <type> Sets how the bandwidth is specified.
Page 133 ® Remote control commands R&S NRQ6 Adapting to the test signal [SENSe<Sensor>:]FREQuency[:CENTer] <frequency> Sets the carrier frequency of the applied signal. This value is used for frequency response correction of the measurement result. Suffix: <Sensor> Parameters: <frequency> Range: 50e6 to 6e9...
Page 134: Selecting A Measurement Mode
66. "POW:SERV" Power servoing mode, see Section 8.6, "Power servoing", on page 85. Requires the power servoing option (R&S NRQ6‑K2). "POW:SERV:TEST" Power servoing test mode, see Section 8.6, "Power servoing", on page 85. Requires the power servoing option (R&S NRQ6‑K2).
Page 135: Configuring The Measured Values
® Remote control commands R&S NRQ6 Configuring the measured values 12.5 Configuring the measured values Before starting a measurement, you can configure the measurand. CALCulate:FEED <mode> If you query measurement data using FETCh<Sensor>[:SCALar][:POWer][: AVG]?, the sensor returns the data of the measurand that was configured before. Gen- erally, this measurand is the average power, but the sensor can also output data of other measurands.
Page 136: Starting And Ending A Measurement
® Remote control commands R&S NRQ6 Starting and ending a measurement Example: The following command sequence configures a peak trace mea- surement of a pulse-modulated FDD 5G signal with 40 MHz bandwidth and the following parameters: RF = 1 GHz, power level = -30 dBm, pulse period = 200 ms, pulse duration = 100 ms.
Page 137 Use this command only after the continuous measurement mode has been disabled using INITiate:CONTinuous OFF. If measuring in zero-IF mode (RBW > 40 MHz), consider to zero the R&S NRQ6 (CALibration<Channel>:ZERO:AUTO ONCE; *OPC?). See also Section 9.2.1, "Trigger states",...
Page 138: Configuring Measurement Settings
® Remote control commands R&S NRQ6 Configuring measurement settings Ends the continuous measurement mode, and sets the sensor to the idle state. *RST: Manual operation: "Autoset" on page 62 "Autoset" on page 69 "Autoset" on page 76 12.7 Configuring measurement settings This section describes the measurement settings for all measurement modes.
Page 139 ® Remote control commands R&S NRQ6 Configuring measurement settings Parameters: <integration_time> Range: 8.30e-09 s to 30.0 s *RST: 0.02 s Default unit: s Manual operation: "Aperture Time" on page 70 12.7.1.2 Configuring auto averaging Describes the commands for automatic averaging in continuous average measure- ments.
Page 140 ® Remote control commands R&S NRQ6 Configuring measurement settings ● Intermediate values are output as measurement results. [SENSe<Sensor>:]AVERage:TCONtrol MOVing ● Power has significantly decreased since the previous measurement, for example by several powers of 10. In this situation, previous measurement results, which are still contained in the averag- ing filter, strongly affect the settling of the display.
Page 141: Configuring A Trace Measurement
® Remote control commands R&S NRQ6 Configuring measurement settings Example: AVER:TCON REP Manual operation: "Moving Average" on page 70 [SENSe<Sensor>:]AVERage:TYPE <type> Sets the averaging domain. For details, see Section 8.1.1, "Averaging domains", on page 66. Suffix: <Sensor> Parameters: <type> POWer | VIDeo | LINear...
Page 142 ® Remote control commands R&S NRQ6 Configuring measurement settings Parameters: <count> Range: 1 to 65536 *RST: Manual operation: "Autoset" on page 72 "<Count>" on page 72 "Autoset" on page 83 [SENSe<Sensor>:]TRACe:AVERage[:STATe] <state> Enables or disables the averaging filter. Suffix: <Sensor>...
Page 143 74 [SENSe<Sensor>:]TRACe:RLENgth[:CUV]? The behavior of this query depends on the measurement mode. ● I/Q trace mode (R&S NRQ6-K1) Queries the number of samples in the current trace. ● Trace mode Queries the number of real result samples before they are reduced or interpolated to the number of trace points defined by [SENSe<Sensor>:]TRACe:POINts.
Page 144: Configuring An Aclr Measurement
® Remote control commands R&S NRQ6 Configuring measurement settings [SENSe<Sensor>:]TRACe:TIME <time> Sets the trace length, time to be covered by the trace sequence. The available range depends on the RBW. Even for time settings within range, a static error due to insufficient memory can occur if the output sampling rate is too high. See Section 7.3.3, "Choosing the correct filter...
Page 145: Configuring An If Spectrum
® Remote control commands R&S NRQ6 Configuring measurement settings [SENSe<Sensor>:]ACLR:ACHannel:SPACing[:ACHannel]? Queries the distance from transmission channel to adjacent channel. The return value depends on the transmission standard selected by the resolution bandwidth setting. Suffix: <Sensor> Example: ACLR:ACH:SPAC? Query 5.000000E+06 Response for 3GPP...
Page 146: Configuring An I/Q Trace Mode
Range: 32 to 1024 *RST: Manual operation: "Signal Check" on page 63 12.7.5 Configuring an I/Q trace mode Requires the I/Q data interface (R&S NRQ6‑K1). Further information: ● Section 8.5, "I/Q trace mode", on page 78 Web user interface: ●...
Page 147: Configuring The Trigger
95. Suffix: <Sensor> Parameters: <type> OFF | SENDer | RECeiver *RST: Example: TRACe:IQ:SYNC:TYPE SEND Configures the R&S NRQ6 as sender. Manual operation: "Sync Mode" on page 84 12.7.6 Configuring the trigger Further information: ● Section 9.2, "Trigger settings",...
Page 148 ® Remote control commands R&S NRQ6 Configuring measurement settings ....................148 TRIGger:ATRigger:DELay ..................148 TRIGger:ATRigger:EXECuted? ....................148 TRIGger:ATRigger[:STATe] ......................149 TRIGger:COUNt ......................149 TRIGger:DELay ......................149 TRIGger:DTIMe ................150 TRIGger:EXTernal<2...2>:IMPedance ......................150 TRIGger:HOLDoff ...................... 150 TRIGger:HYSTeresis ......................151 TRIGger:IMMediate ......................151 TRIGger:JITTer? ....................151 TRIGger:JITTer:METHod ..................151...
Page 149 ® Remote control commands R&S NRQ6 Configuring measurement settings The delay time is set using TRIGger:ATRigger:DELay. Parameters: <state> *RST: Manual operation: "Autoset" on page 72 "Autoset" on page 83 TRIGger:COUNt <count> Sets the number of measurement cycles to be performed when the measurement is started using INITiate[:IMMediate].
Page 150 ® Remote control commands R&S NRQ6 Configuring measurement settings TRIGger:EXTernal<2...2>:IMPedance <impedance> Effective only if EXTernal2 is set. TRIGger:SOURce Sets the termination resistance of the second external trigger input. Choose the setting that fits the impedance of the trigger source to minimize reflections on the trigger sig- nals.
Page 151 ® Remote control commands R&S NRQ6 Configuring measurement settings TRIGger:IMMediate Causes a generic trigger event. The sensor leaves the waiting for trigger state immedi- ately, irrespective of the trigger source and the trigger delay, and starts the measure- ment. This command is the only way to start a measurement if the trigger source is set to hold, HOLD.
Page 152 ® Remote control commands R&S NRQ6 Configuring measurement settings Example: TRIG:JITT:METH:CUV? Query NONE Result Usage: Query only TRIGger:LEVel <level> Effective only if TRIGger:SOURce INTernal. Sets the trigger threshold for internal triggering derived from the test signal. Parameters: <level> If you enter a value without unit, the unit is defined by TRIGger:LEVel:UNIT.
Page 153 ® Remote control commands R&S NRQ6 Configuring measurement settings TRIGger:SENDer:PORT <sender_port> Effective only if the R&S NRQ6 is trigger sender: ● TRIGger:SENDer:STATe ● [SENSe<Sensor>:]TRACe:IQ:SYNC:TYPE SEND Selects the port where the sensor outputs a digital trigger signal. Section 9.2.6, "Trigger sender usage",...
Page 154 ® Remote control commands R&S NRQ6 Configuring measurement settings NEGative Falling edge *RST: POSitive TRIGger:SOURce <source> Selects the source for the trigger event. Parameters: <source> HOLD | IMMediate | INTernal | BUS | EXTernal | EXT1 | EXTernal1 | EXT2 | EXTernal2 Section 9.2.2, "Trigger...
Page 155: Configuring Corrections
® Remote control commands R&S NRQ6 Configuring measurement settings Parameters: <state> *RST: Manual operation: "Sync. State" on page 99 12.7.7 Configuring corrections It is possible to set some parameters that compensate for a change of the measured signal due to fixed external influences.
Page 156: Offset Corrections
® Remote control commands R&S NRQ6 Configuring measurement settings [SENSe<Sensor>:]CORRection:DCYCle:STATe <state> Enables or disables the duty cycle correction for the measured value. Suffix: <Sensor> Parameters: <state> *RST: Manual operation: "Duty Cycle" on page 70 12.7.7.2 Offset corrections The offset accounts for external losses by adding a fixed level offset in dB.
Page 157: Dc Rejection
® Remote control commands R&S NRQ6 Configuring measurement settings 12.7.7.3 DC rejection Further information: ● Section 9.3.2.1, "DC rejection", on page 101 Web user interface: ● Section 9.3.3, "Correction parameters", on page 104 Remote commands: ..............157 [SENSe<Sensor>:]FILTer:DCReject:FCORner ............157 [SENSe<Sensor>:]FILTer:DCReject:FCORner:CUV? ..............
Page 158: Noise Correction
S-parameter data for the two-port device- in the frequency range required by the application. On delivery from the factory, the R&S NRQ6 comes without any S-parameter data set. There are two ranges for S-parameter data sets. Use them depending on the purpose of the S-parameter data set: ●...
Page 159 ® Remote control commands R&S NRQ6 Configuring measurement settings To create an S-parameter data set 1. Load the S-parameter data set. [SENSe<Sensor>:]CORRection:SPDevice<Device>:DATA 2. Define a name of the data set (optional). [SENSe<Sensor>:]CORRection:SPDevice<Device>:MNEMonic 3. Define a minimum power (optional). [SENSe<Sensor>:]CORRection:SPDevice<Device>:MINPower 4. Define a maximum power (optional).
Page 160 ]CORRection:SPDevice<Device>:UNLock. Reading access is granted without unlocking. Downloads the S-parameter data to the R&S NRQ6 and assigns the suffix to the corre- sponding S-parameter device. The R&S NRQ6 uses these data directly or interpolates for values that are not listed.
Page 161 For writing access, you have to prove your authorization, see [SENSe<Sensor>: ]CORRection:SPDevice<Device>:UNLock. Reading access is granted without unlocking. Sets the minimum power for the R&S NRQ6 with the S-parameter device attached to it. to query the minimum power of the overall system. SYSTem:MINPower? Suffix: <Sensor>...
Page 162 ® Remote control commands R&S NRQ6 Configuring measurement settings Parameters: <minpower> Optional setting. If no value is set, the query returns NaN. Range: 0 W to 1.0e6 W *RST: Default unit: W Example: CORR:SPD5:MINP 1e-17 [SENSe<Sensor>:]CORRection:SPDevice<Device>:MNEMonic <mnemonic> For writing access, you have to prove your authorization, see [SENSe<Sensor>:...
Page 163 There are three parameters to control the behavior: ● CORRdef If enabled, the S-parameter correction is enabled automatically when the R&S NRQ6 is started. The selected device, for which the S-parameter correction is enabled, is the default device. Select the default device by using [SENSe<Sensor>:]CORRection:SPDevice:INDex:DEFault. ●...
Page 164 158. *RST: CORRdef Example: CORR:SPD:CLE STAT Usage: Setting only [SENSe<Sensor>:]CORRection:SPDevice:FLAGs? Queries which parameters controlling the behavior of the R&S NRQ6 regarding S- parameter corrections are enabled. Suffix: <Sensor> Example: CORR:SPD:FLAG? CORR,STAT,SEL All three parameters are enabled. See also Section 12.7.7.5, "S-...
Page 165: S-Gamma Corrections
Configuring measurement settings [SENSe<Sensor>:]CORRection:SPDevice:SET <state> Enables the selected parameter. Suffix: <Sensor> Setting parameters: <state> CORRdef | STATelock | SELectlock These parameters control the behavior of the R&S NRQ6 regarding S-parameter corrections. See Section 12.7.7.5, "S- parameter correction", on page 158. *RST: CORRdef...
Page 166 ® Remote control commands R&S NRQ6 Configuring measurement settings is enabled, this interaction is always considered, regardless whether gamma correction is performed or not. Source Sensor - parameter device and sensor Figure 12-2: Correction of interactions between signal source, S...
Page 167: I-Gamma Queries
® Remote control commands R&S NRQ6 Configuring measurement settings [SENSe<Sensor>:]SGAMma:PHASe <phase> Sets the phase angle of the complex reflection coefficient of the source, Γ source Suffix: <Sensor> Parameters: <phase> Range: -360.0 degrees to 360.0 degrees *RST: 0.0 degrees Default unit: degrees Manual operation: "Phase"...
Page 168: Configuring The Mixer
® Remote control commands R&S NRQ6 Configuring measurement settings Example: IGAM:PHAS? Query -5.493321E+01 Response Usage: Query only [SENSe<Sensor>:]IGAMma:EUNCertainty? Queries the expanded (k = 2) uncertainty of the magnitude of the complex input reflec- tion coefficient Γ . Following gamma correction, the residual mismatch uncertainty becomes so small that it is practically negligible.
Page 169 ® Remote control commands R&S NRQ6 Configuring measurement settings Suffix: <Sensor> Example: FREQ:IF? Query -2.500000E+07 Result in Hz Usage: Query only Manual operation: "Frequency (IF) - Frequency" on page 109 [SENSe<Sensor>:]FREQuency:CONVersion:MIXer:IF:SIDeband <select> Sets the currently used intermediate frequency sideband. Suffix: <Sensor>...
Page 170 ® Remote control commands R&S NRQ6 Configuring measurement settings Usage: Query only Manual operation: "Used Internal LO, Expected External LO" on page 108 [SENSe<Sensor>:]FREQuency:CONVersion:MIXer:LO:OUTPut[:STATe] <state> Enables or disables the output of the local oscillator signal. See Section 9.4.1, "Local oscillator signal",...
Page 171: Configuring The Sensor
® Remote control commands R&S NRQ6 Configuring measurement settings Example: FREQ:CONV:MIX:LO:SOUR EXT Manual operation: "Local Oscillator (LO) - Source" on page 108 [SENSe<Sensor>:]FREQuency:TRACk <state> Enables or disables the frequency tracker. See Section 7.2.1, "Frequency tracker", on page 55. Suffix: <Sensor>...
Page 172 ............173 [SENSe<Sensor>:]SAMPling:CLKio:OUTPut[:STATe] [SENSe<Sensor>:]ROSCillator:PASSthrough <state> Requires the phase coherent measurements option (R&S NRQ6‑K3). Configures the usage of the external sampling clock. The usage of the external sampling clock requires an external LO signal. To avoid set- ting conflicts, the following combination is not allowed: ●...
Page 173 ® Remote control commands R&S NRQ6 Configuring measurement settings Manual operation: "Reference Input" on page 111 [SENSe<Sensor>:]ROSCillator:REFio:OUTPut[:STATe] <state> If the REF connector is used as an output, enables or disables the output signal. See also Table 9-2. Suffix: <Sensor> Parameters: <state>...
Page 174: Configuring Measurement Results
® Remote control commands R&S NRQ6 Configuring measurement results 12.8 Configuring measurement results See also: ● Section 12.9, "Querying measurement results", on page 176 ● Setting the power unit................... 174 ● Setting the result format..................174 12.8.1 Setting the power unit The UNIT subsystem contains commands for setting up the power unit.
Page 175 ® Remote control commands R&S NRQ6 Configuring measurement results SWAPped The 1st byte is the most significant byte, the 4th/8th byte the least significant byte. Fulfills the Big Endian (big end comes first) convention. *RST: NORMal Example: FORM:BORD NORM FORMat[:DATA] [<data,length>, <length>] Specifies how the sensor sends the numeric data to the controlling host/computer.
Page 176: Querying Measurement Results
® Remote control commands R&S NRQ6 Querying measurement results [SENSe<Sensor>:]TRACe:IQ:DATA:FORMat <format> Defines the format of the I/Q trace results. Suffix: <Sensor> Parameters: <format> COMPatible | IQBLock | IQPair COMPatible 512k I data samples, 512k Q data samples, 512k I data ...
Page 177: Continuous Average Measurement Results
® Remote control commands R&S NRQ6 Querying measurement results Example: FETC? Query Results of the continuous average measurement Single scalar value. 2.454005E-05 Results of the trace measurement List of trace points. 2.989667E-12,3.014341E-12,2.749163E-12, 2.930418E-12,...,2.698201E-1 Results of the ACLR measurement Channel power list: <TX channel>, <lower adjacent channel>, <upper adjacent...
Page 178 ® Remote control commands R&S NRQ6 Querying measurement results Usage: Query only [SENSe<Sensor>:][POWer:][AVG:]BUFFer:CLEar Clears the contents of the result buffer. Suffix: <Sensor> Example: BUFF:CLE Usage: Event [SENSe<Sensor>:][POWer:][AVG:]BUFFer:COUNt? Queries the number of results that are currently stored in the result buffer.
Page 179: Trace Measurement Results
12.9.3 Trace measurement results Commands for querying the trace average measurement results. The R&S NRQ6 can output data of peak and random values in addition to the average power trace, if the number of measured values, sampled by the output sample rate, is...
Page 180 ® Remote control commands R&S NRQ6 Querying measurement results Command response Basically, the response represents a "definite length arbitrary block response data" as defined in IEEE488.2. This object consists of a header and content. Figure 12-3 out- lines the response format:...
Page 181: I/Q Trace Results
® Remote control commands R&S NRQ6 Querying measurement results Result type Always 3 bytes, one for AVG, one for MIN and one for MAX or RND Data type Designator for the contained data type with the size of 1 byte. Currently, the only possible designa- tor is "f"...
Page 182: Calibrating And Zeroing
3. Check the protocol of the new normalized calibration factors: CALibration:PROTocol? An example script for the recalibration of the R&S NRQ6 is provided in R&S NRP‑Tool- kit SDK. In this script, a power measurement is conducted before and after recalibra- tion at a certain frequency, with and without 30 dB attenuation.
Page 183: Calibration:data
Writes a binary calibration data set in the memory of the sensor. A user calibration data set is generated and used by the R&S NRQ6. The factory cali- bration data set is not affected by this command. To reuse the factory calibration data set, use CALibration:RESTore.
Page 184: Calibration:data:path:Reflection
® Remote control commands R&S NRQ6 Calibrating and zeroing Setting parameters: <blockdata> <block_data> An example is given in the programming examples of the R&S NRP‑Toolkit. Usage: Setting only CALibration:DATA:PATH<Path>:REFLection <blockdata> Imports the measurement data files for the reflection factor. There is a separate file for each attenuation setting.
Page 185: Calibration:protocol
Event CALibration:RESTore For writing access, you have to prove your authorization, see CALibration:UNLock. Deletes the user calibration data set and loads the factory calibration data set of the R&S NRQ6. Usage: Event CALibration:SAVE Saves the new calibration data set in the flash memory.
Page 186 NRQ6 Calibrating and zeroing CALibration:UNLock <password> If you want to use a calibration command that can affect the user calibration data set of the R&S NRQ6, you have to prove your authorization by sending this command first. Parameters: <password> 1234 *RST: CALibration<Channel>:ZERO:AUTO <state>...
Page 187: Running A Self-Test
® Remote control commands R&S NRQ6 Configuring the system 12.11 Running a self-test The self-test allows a test of the internal circuitry of the sensor. Further information: ● Section 15.3, "Performing a self-test", on page 227 ● Section 9.3.1, "Corrections in the RF path",...
Page 188: Preset And Initialize
® Remote control commands R&S NRQ6 Configuring the system 12.12.1 Preset and initialize ......................188 SYSTem:PRESet ......................188 SYSTem:INITialize SYSTem:PRESet Resets the sensor. The command essentially corresponds to the *RST command, with the exception that the settings of the following commands are persistently held:...
Page 189: Firmware Update
® Remote control commands R&S NRQ6 Configuring the system 12.12.3 Firmware update See also Section 11, "Firmware update", on page 117. SYSTem:FWUPdate <fwudata> Loads new operating firmware into the sensor. Rohde & Schwarz provides the update file. For further details, see Section 11, "Firmware...
Page 190: Password Management
® Remote control commands R&S NRQ6 Configuring the system SYSTem:LICense:KEY <key> Installs the license key for the option key management. To make the new option availa- ble, reboot the sensor using SYSTem:REBoot. Check the installed options using on page 127.
Page 191: Network Settings
® Remote control commands R&S NRQ6 Configuring the system SYSTem:SECurity:PASSword:SECurity <passwd1>, <passwd2> Sets a new security password. The command is restricted to remote control over the USB interface (USBTMC). Setting parameters: <passwd1> Old security password, entered as a string. <passwd2>...
Page 192: System:communicate:network[:Common]:Hostname
® Remote control commands R&S NRQ6 Configuring the system Parameters: <domain> Example: SYST:COMM:NETW:COMM:DOM 'ABC.DE' Sets ABC.DE as domain of the network. SYSTem:COMMunicate:NETWork[:COMMon]:HOSTname <hostname> Sets the individual host name of the sensor. In a LAN that uses a DNS server (domain name system server), you can access each connected sensor using a unique host name instead of its IP address.
Page 193: System:communicate:network:ipaddress
® Remote control commands R&S NRQ6 Configuring the system SYSTem:COMMunicate:NETWork:IPADdress <ipaddress> Effective only if is set to SYSTem:COMMunicate:NETWork:IPADdress:MODE STATic. Sets the IP address of the sensor. Parameters: <ipaddress> Example: SYST:COMM:NETW:IPAD '147.161.235.79' Sets 147.161.235.79 as IP address. Manual operation: "IP Address"...
Page 194: Remote Settings
® Remote control commands R&S NRQ6 Configuring the system SYSTem:COMMunicate:NETWork:IPADdress:SUBNet:MASK <netmask> Effective only if is set to SYSTem:COMMunicate:NETWork:IPADdress:MODE STATic. Sets the subnet mask. Parameters: <netmask> The subnet mask consists of four number blocks separated by dots. Every block contains 3 numbers in maximum.
Page 195 ® Remote control commands R&S NRQ6 Configuring the system SYSTem:HELP:HEADers? [<Item>] Returns a list of all SCPI commands supported by the sensor. Query parameters: <Item> <block_data> Usage: Query only SYSTem:HELP:SYNTax? [<Item>] Queries the relevant parameter information for the specified SCPI command.
Page 196: Sensor Information
® Remote control commands R&S NRQ6 Configuring the system SYSTem:PARameters:DELTa? Returns an XML-output containing all commands that differ from the defined default status set by on page 127. *RST The commands are accompanied by the same information as for SYSTem: PARameters?.
Page 197: Status Display And Update
® Remote control commands R&S NRQ6 Configuring the system Query parameters: <index> Most recent device footprint Return values: <XmlDeviceFootprint><dblock> Usage: Query only SYSTem:INFO? [<item>] Queries information about the sensor. If queried without parameters, the command returns all available information in the form of a list of strings separated by commas.
Page 198: Measurement Limits And Levels
Queries the lower power measurement limit. Use this query to determine a useful reso- lution for the result display near the lower measurement limit. The lower measurement limit refers to the R&S NRQ6 or to the combination of an R&S NRQ6 with an S-parameter device attached to it, depending on the setting of [SENSe<Sensor>:]CORRection:SPDevice:STATe:...
Page 199: Power Servoing Communication
Remote control commands R&S NRQ6 Configuring the system ● Enabled: The query returns the minimum power of the R&S NRQ6 with the S- parameter device attached to it. The same value is returned by [SENSe<Sensor>:]CORRection:SPDevice<Device>:MINPower. Set the unit using SYSTem:MINPower:UNIT. Usage: Query only SYSTem:MINPower:UNIT <unit>...
Page 200 ® Remote control commands R&S NRQ6 Configuring the system .....................200 SYSTem:ERRor:ALL? ..................200 SYSTem:ERRor:CODE:ALL? ..................200 SYSTem:ERRor:CODE[:NEXT]? ....................201 SYSTem:ERRor:COUNt? ....................201 SYSTem:ERRor[:NEXT]? ......................201 SYSTem:SERRor? ................... 201 SYSTem:SERRor:LIST:ALL? ..................202 SYSTem:SERRor:LIST[:NEXT]? SYSTem:ERRor:ALL? Queries all unread entries in the SCPI communication error queue and removes them from the queue.
Page 201 ® Remote control commands R&S NRQ6 Configuring the system SYSTem:ERRor:COUNt? Queries the number of entries in the SCPI communication error queue. Example: SYST:ERR:COUN? Query Response: One error has occurred since the error queue was last read out. Usage: Query only...
Page 202: Using The Status Register
® Remote control commands R&S NRQ6 Using the status register SYSTem:SERRor:LIST[:NEXT]? Queries the list of static error changes for the oldest entry and removes it from the queue. Returns an error number and a short description of the error. Example:...
Page 203: Reading The Condition Part
® Remote control commands R&S NRQ6 Using the status register 12.13.2 Reading the CONDition part STATus:DEVice:CONDition? STATus:OPERation:CALibrating:CONDition? STATus:OPERation:CONDition? STATus:OPERation:LLFail:CONDition? STATus:OPERation:MEASuring:CONDition? STATus:OPERation:SENSe:CONDition? STATus:OPERation:TRIGger:CONDition? STATus:OPERation:ULFail:CONDition? STATus:QUEStionable:CALibration:CONDition? STATus:QUEStionable:CONDition? STATus:QUEStionable:POWer:CONDition? STATus:QUEStionable:WINDow:CONDition? Usage: Query only 12.13.3 Reading the EVENt part STATus:DEVice[:EVENt]? STATus:OPERation:CALibrating[:SUMMary][:EVENt]? STATus:OPERation[:EVENt]? STATus:OPERation:LLFail[:SUMMary][:EVENt]? STATus:OPERation:MEASuring[:SUMMary][:EVENt]?
Page 204: Controlling The Negative Transition Part
® Remote control commands R&S NRQ6 Using the status register STATus:QUEStionable:POWer:ENABle <value> STATus:QUEStionable:WINDow:ENABle <value> Parameters: <value> *RST: 12.13.5 Controlling the negative transition part STATus:DEVice:NTRansition <value> STATus:OPERation:CALibrating:NTRansition <value> STATus:OPERation:NTRansition <value> STATus:OPERation:LLFail:NTRansition <value> STATus:OPERation:MEASuring:NTRansition <value> STATus:OPERation:SENSe:NTRansition <value> STATus:OPERation:TRIGger:NTRansition <value> STATus:OPERation:ULFail:NTRansition <value> STATus:QUEStionable:CALibration:NTRansition <value>...
Page 205: Programming Examples
Writes the measured I/Q data into a *.csv file. Requires the I/Q data interface (R&S NRQ6‑K1). ● Phase analysis Requires the I/Q data interface (R&S NRQ6‑K1) and the phase coherent measure- ments option (R&S NRQ6‑K3). User Manual 1178.3692.02 ─ 14...
Page 206: Remote Control Basics
Apart from the USBTMC driver, which comes with the installation of VISA, you do not have to install a separate driver. Setup 1. Connect the host interface of the R&S NRQ6 and the USB interface of the com- puter. Section 3.7.1, "Computer",...
Page 207: Ethernet Interface
LAN when using VXI-11 or HiSLIP protocols. ● Software for device control Setup 1. Using the Ethernet interface, connect the computer and the R&S NRQ6 to a local area network. See Section 3.7.1.1, "Using a LAN connection", on page 21.
Page 208 ● If the product has the IP address 10.111.11.20, the valid resource string is TCPIP::10.111.11.20::INSTR ● If the DNS host name is nrq6-100001, the valid resource string is TCPIP::nrq6-100001::inst0 HiSLIP TCPIP::<IP address or host name>::hislip0[::INSTR] User Manual 1178.3692.02 ─ 14...
Page 209: Status Reporting System
HiSLIP device name, designates that the interface protocol HiSLIP is used (mandatory) hislip0 is composed of [::HiSLIP device name[,HiSLIP port]] and must be assigned. Example: If the DNS host name is nrq6-100001, the valid resource string is TCPIP::nrq6-100001::hislip0 Socket communication TCPIP::<IP address or host name>::port::SOCKET ●...
Page 210 ® Remote control basics R&S NRQ6 Status reporting system Status byte Error queue Device status Questionable status Standard event status RQS/MSS Operation status Message queue Figure 14-1: Status registers overview 1 = Status byte, see Table 14-1 Section 14.2.2, "Device status register",...
Page 211: Device Status Register
® Remote control basics R&S NRQ6 Status reporting system Short description Bit is set if Questionable status register An EVENt bit is set in the QUEStionable status register and summary the associated ENABLe bit is set to 1. A set bit denotes a ques- tionable device status which can be specified in greater detail by querying the questionable status register.
Page 212 ® Remote control basics R&S NRQ6 Status reporting system Sum of bits 1 to 4 Measurement not possible Erroneous result Warning Critical Legacy locked state Reference PLL locked state Figure 14-2: Device status register Querying the register: ● STATus:DEVice:CONDition? ●...
Page 213: Questionable Status Register
® Remote control basics R&S NRQ6 Status reporting system Bit no. Short description Bit is set if Legacy locked state The sensor is locked in the NRP legacy mode. Via the SCPI channels (USBTMC or TCP/IP), only query commands can be sent, but no setting commands.
Page 214 Summary of Questionable calibration status register exists. POST failure (self-test) Built-in test of the R&S NRQ6 that is carried out automatically upon power-up has generated an error. 14.2.3.1 Questionable power status register Contains information on whether the measured power values are questionable.
Page 215 ® Remote control basics R&S NRQ6 Status reporting system 14.2.3.2 Questionable calibration status register Contains information whether the zeroing of the sensor was successful. Sensor calibration failed Figure 14-5: Questionable calibration status register Querying the register: ● STATus:QUEStionable:CALibration:CONDition? ● STATus:QUEStionable:CALibration[:SUMMary][:EVENt]? Table 14-5: Used questionable calibration status bits and their meaning Bit no.
Page 216: Operation Status Register
® Remote control basics R&S NRQ6 Status reporting system Operation Complete Query Error Device-Dependent Error Execution Error Command Error User Request Power On Figure 14-6: Standard event status register (ESR) Table 14-6: Used standard event status bits and their meaning Bit no.
Page 217 ® Remote control basics R&S NRQ6 Status reporting system Calibrating Measuring Triggering Sense summary Lower limit fail Upper limit fail Figure 14-7: Operation status register Querying the register: ● STATus:OPERation:CONDition? ● STATus:OPERation[:EVENt]? Table 14-7: Used operation status bits and their meaning Bit no.
Page 218 ® Remote control basics R&S NRQ6 Status reporting system Sensor calibrating Figure 14-8: Operation calibrating status register Querying the register: ● STATus:OPERation:CALibrating:CONDition? ● STATus:OPERation:CALibrating[:SUMMary][:EVENt]? Table 14-8: Used operation calibrating status bits and their meaning Bit no. Short description Bit is set if Sensor calibrating Sensor is being calibrated.
Page 219 ® Remote control basics R&S NRQ6 Status reporting system Sensor measuring Figure 14-9: Operation measuring status register Querying the register: ● STATus:OPERation:MEASuring:CONDition? ● STATus:OPERation:MEASuring[:SUMMary][:EVENt]? Table 14-9: Used operation measuring status bits and their meaning Bit no. Short description Bit is set if Sensor measuring Sensor is measuring.
Page 220 ® Remote control basics R&S NRQ6 Status reporting system Sensor waiting for trigger Figure 14-10: Operation trigger status register Querying the register: ● STATus:OPERation:TRIGger:CONDition? ● STATus:OPERation:TRIGger[:SUMMary][:EVENt]? Table 14-10: Used operation trigger status bits and their meaning Bit no. Short description...
Page 221 ® Remote control basics R&S NRQ6 Status reporting system Sensor initializing Figure 14-11: Operation sense status register Querying the register: ● STATus:OPERation:SENSe:CONDition? ● STATus:OPERation:SENSe[:SUMMary][:EVENt]? Table 14-11: Used operation sense status bits and their meaning Bit no. Short description Bit is set if Sensor initializing Sensor is being initialized.
Page 222 ® Remote control basics R&S NRQ6 Status reporting system Lower limit fail Figure 14-12: Operation lower limit fail status registers Querying the register: ● STATus:OPERation:LLFail:CONDition? ● STATus:OPERation:LLFail[:SUMMary][:EVENt]? Table 14-12: Used operation lower limit fail status bits and their meaning Bit no.
Page 223 ® Remote control basics R&S NRQ6 Status reporting system Upper limit fail Figure 14-13: Operation upper limit fail status registers Querying the register: ● STATus:OPERation:ULFail:CONDition? ● STATus:OPERation:ULFail[:SUMMary][:EVENt]? Table 14-13: Used operation upper limit fail status bits and their meaning Bit no.
Page 224: Displaying Status Information
® Troubleshooting R&S NRQ6 Error messages 15 Troubleshooting ● Displaying status information................224 ● Error messages.....................224 ● Performing a self-test.................... 227 ● Problems during a firmware update..............230 ● Contacting customer support................230 15.1 Displaying status information Status information is available in several ways.
Page 225 Current settings exceed calibration range For the current settings, not all calibration values are found. Solution: Check whether the R&S NRQ6 operates out of specification that means it exceeds a resolution bandwidth of 40 MHz at 50 MHz RF frequency.
Page 226 Observation: It seems that the signal does not reach the trigger level, but the R&S NRQ6 is triggering. Reason: The samples that are triggering the R&S NRQ6 are not shown in the display because the display decimation averages out short peaks.
Page 227: Performing A Self-Test
® Troubleshooting R&S NRQ6 Performing a self-test ● If you use the web user interface: On the "Correction" tab, click Zeroing. 15.3 Performing a self-test The self-test gives you detailed information that you can use for troubleshooting. Do not apply a signal to the sensor while the self-test is running. If the self-test is car-...
Page 228 10 cm. Is the fan running? ► Check whether the fan is running. If it does not run, contact the service. Test Generator The R&S NRQ6 has an integrated signal source to verify the absolute calibration. User Manual 1178.3692.02 ─ 14...
Page 229 2. If no signal is applied or if the test step fails again, contact the service. Dither The R&S NRQ6 is a highly linear power sensor. To optimize the linearity of the AD con- verter, a dither signal is used in certain modes. This test step checks whether the dither source works properly.
Page 230: Contacting Customer Support
® Troubleshooting R&S NRQ6 Contacting customer support If the test fails ► Contact the service. This error is a critical. DDS DAC Interface Checks the data interface of the AD converter in the signal synthesis of the local oscil- lator (LO).
Page 231 ® Troubleshooting R&S NRQ6 Contacting customer support Figure 15-1: QR code to the Rohde & Schwarz support page User Manual 1178.3692.02 ─ 14...
Page 232 ® Transporting R&S NRQ6 16 Transporting Packing Use the original packaging material. It consists of antistatic wrap for electrostatic pro- tection and packing material designed for the product. If you do not have the original packaging, use similar materials that provide the same level of protection.
Page 233: Maintenance, Storage And Disposal
® Maintenance, storage and disposal R&S NRQ6 Regular checks 17 Maintenance, storage and disposal Check the nominal data from time to time. 17.1 Regular checks If the product is used frequently, check the RF connectors for visible damage - bent inner conductors, broken contact springs and so on.
Page 234 R&S NRQ6 Disposal 17.2 Cleaning 1. Disconnect the R&S NRQ6: a) From the DUT. b) From the computer or the base unit. 2. Clean the outside of the product using a lint-free cloth. You can dampen the cloth with water but keep in mind that the casing is not waterproof. If you use 70% iso- propyl alcohol instead of water, be careful not to damage the labeling.
Page 235 ® Maintenance, storage and disposal R&S NRQ6 Disposal Figure 17-1: Labeling in line with EU directive WEEE Rohde & Schwarz has developed a disposal concept for the eco-friendly disposal or recycling of waste material. As a manufacturer, Rohde & Schwarz completely fulfills its obligation to take back and dispose of electrical and electronic waste.
Page 236 ® List of commands R&S NRQ6 List of commands [SENSe<Sensor>:][POWer:][AVG:]APERture....................138 [SENSe<Sensor>:][POWer:][AVG:]BUFFer:CLEar..................178 [SENSe<Sensor>:][POWer:][AVG:]BUFFer:COUNt?..................178 [SENSe<Sensor>:][POWer:][AVG:]BUFFer:DATA?..................178 [SENSe<Sensor>:][POWer:][AVG:]BUFFer:SIZE..................178 [SENSe<Sensor>:][POWer:][AVG:]BUFFer:STATe..................179 [SENSe<Sensor>:]ACLR:ACHannel:SPACing[:ACHannel]?.................145 [SENSe<Sensor>:]ACLR:APERture......................145 [SENSe<Sensor>:]ADJust[:ALL]........................129 [SENSe<Sensor>:]AVERage:COUNt......................139 [SENSe<Sensor>:]AVERage:RESet......................139 [SENSe<Sensor>:]AVERage:TCONtrol......................140 [SENSe<Sensor>:]AVERage:TYPE.......................141 [SENSe<Sensor>:]AVERage[:STATe]......................140 [SENSe<Sensor>:]BANDwidth:INFO?......................129 [SENSe<Sensor>:]BANDwidth:NOISe?......................130 [SENSe<Sensor>:]BANDwidth:RESolution....................130 [SENSe<Sensor>:]BANDwidth:RESolution:CUV?..................130 [SENSe<Sensor>:]BANDwidth:RESolution:TYPE..................130 [SENSe<Sensor>:]BANDwidth:RESolution:TYPE:AUTO[:STATe]..............131 [SENSe<Sensor>:]BANDwidth:SRATe......................131 [SENSe<Sensor>:]BANDwidth:SRATe:CUV?....................132 [SENSe<Sensor>:]BANDwidth:TYPE......................132 [SENSe<Sensor>:]BANDwidth:VARiable...................... 132 [SENSe<Sensor>:]CORRection:DCYCle......................
Page 237 ® List of commands R&S NRQ6 [SENSe<Sensor>:]FREQuency:CONVersion:MIXer:LO:OUTPut[:STATe]............ 170 [SENSe<Sensor>:]FREQuency:CONVersion:MIXer:LO:SOURce..............170 [SENSe<Sensor>:]FREQuency:CONVersion:MIXer:LO[:CUV]?..............169 [SENSe<Sensor>:]FREQuency:TRACk......................171 [SENSe<Sensor>:]FREQuency:TRACk:CUV[:STATe]?................171 [SENSe<Sensor>:]FREQuency:TRACk:FREQuency?..................171 [SENSe<Sensor>:]FREQuency[:CENTer]..................... 133 [SENSe<Sensor>:]FUNCtion.........................134 [SENSe<Sensor>:]IGAMma:EUNCertainty?....................168 [SENSe<Sensor>:]IGAMma:MAGNitude?.....................167 [SENSe<Sensor>:]IGAMma:PHASe?......................167 [SENSe<Sensor>:]INPut:ATTenuation......................133 [SENSe<Sensor>:]INPut:ATTenuation:AUTO....................133 [SENSe<Sensor>:]POWer:NCORrection[:STATe]..................158 [SENSe<Sensor>:]ROSCillator:PASSthrough....................172 [SENSe<Sensor>:]ROSCillator:REFio:FREQuency..................172 [SENSe<Sensor>:]ROSCillator:REFio:OUTPut[:STATe]................173 [SENSe<Sensor>:]ROSCillator:SOURce...................... 173 [SENSe<Sensor>:]SAMPling:CLKio:OUTPut[:STATe]...................173 [SENSe<Sensor>:]SGAMma:CORRection:STATe..................166 [SENSe<Sensor>:]SGAMma:MAGNitude..................... 166 [SENSe<Sensor>:]SGAMma:PHASe......................
Page 238 ® List of commands R&S NRQ6 *TRG................................128 *TST?................................128 *WAI................................128 ABORt................................137 CALCulate:FEED............................135 CALibration:DATA............................183 CALibration:DATA:LENGth?.......................... 183 CALibration:DATA:PATH<Path>:ABSolute....................183 CALibration:DATA:PATH<Path>:REFLection....................184 CALibration:FREQuency:LIMits........................184 CALibration:PROTocol?..........................185 CALibration:RECalculate..........................185 CALibration:RESTore.............................185 CALibration:SAVE............................185 CALibration:UNLock............................186 CALibration<Channel>:IQOFfset[:AUTO]...................... 184 CALibration<Channel>:ZERO:AUTO......................186 FETCh<Sensor>:ARRay[:POWer][:AVG]?....................177 FETCh<Sensor>[:SCALar][:POWer][:AVG]?....................176 FORMat:BORDer............................174 FORMat:SREGister............................175 FORMat[:DATA]............................. 175 INITiate:ALL..............................137 INITiate:CONTinuous.............................137...
Page 239 ® List of commands R&S NRQ6 STATus:OPERation:SENSe:ENABle......................203 STATus:OPERation:SENSe:NTRansition...................... 204 STATus:OPERation:SENSe:PTRansition...................... 204 STATus:OPERation:SENSe[:SUMMary][:EVENt]?..................203 STATus:OPERation:TRIGger:CONDition?.....................203 STATus:OPERation:TRIGger:ENABle......................203 STATus:OPERation:TRIGger:NTRansition....................204 STATus:OPERation:TRIGger:PTRansition....................204 STATus:OPERation:TRIGger[:SUMMary][:EVENt]?..................203 STATus:OPERation:ULFail:CONDition?......................203 STATus:OPERation:ULFail:ENABle.......................203 STATus:OPERation:ULFail:NTRansition....................... 204 STATus:OPERation:ULFail:PTRansition......................204 STATus:OPERation:ULFail[:SUMMary][:EVENt]?..................203 STATus:OPERation[:EVENt]?........................203 STATus:PRESet.............................202 STATus:QUEStionable:CALibration:CONDition?...................203 STATus:QUEStionable:CALibration:ENABle....................203 STATus:QUEStionable:CALibration:NTRansition..................204 STATus:QUEStionable:CALibration:PTRansition..................204 STATus:QUEStionable:CALibration[:SUMMary][:EVENt]?................
Page 240 ® List of commands R&S NRQ6 SYSTem:DFPRint:HISTory:COUNt?......................196 SYSTem:DFPRint:HISTory:ENTRy?......................196 SYSTem:DFPRint<Channel>?........................196 SYSTem:ERRor:ALL?............................200 SYSTem:ERRor:CODE:ALL?........................200 SYSTem:ERRor:CODE[:NEXT]?........................200 SYSTem:ERRor:COUNt?..........................201 SYSTem:ERRor[:NEXT]?..........................201 SYSTem:FWUPdate............................189 SYSTem:FWUPdate:STATus?........................189 SYSTem:HELP:HEADers?..........................195 SYSTem:HELP:SYNTax:ALL?........................195 SYSTem:HELP:SYNTax?..........................195 SYSTem:INFO?............................. 197 SYSTem:INITialize............................188 SYSTem:LANGuage............................195 SYSTem:LED:COLor............................. 198 SYSTem:LED:MODE............................. 198 SYSTem:LICense:KEY..........................190 SYSTem:LICense:XML..........................190 SYSTem:MINPower:UNIT..........................199...
Page 241 ® List of commands R&S NRQ6 TRIGger:LEVel:UNIT............................. 152 TRIGger:SENDer:PORT..........................153 TRIGger:SENDer:STATe..........................153 TRIGger:SLOPe.............................153 TRIGger:SOURce............................154 TRIGger:SYNC:PORT........................... 154 TRIGger:SYNC:STATe...........................154 UNIT:POWer..............................174 User Manual 1178.3692.02 ─ 14...
Page 242 ® Index R&S NRQ6 Index Controlling host ..............21 R&S NRX ..............29 ACLR mode ...............75 Conversion frequency ............. 109 Remote control ............144 Correction Result display ............. 76 DC zeroing ..............103 Settings ............... 75 Duty cycle ..............155 Aperture time External losses ............
Page 243 Measured values Remote control ............135 I-gamma ................167 Measurement I/Q data interface Bias ................67 R&S NRQ6‑K1 ............78 Configuration .............. 87 I/Q trace mode ..............78 Control ................ 87 Remote control ..........145, 146 Duration ..............47 Sample rate ..............82 Ending ..............
Page 244 Regulatory information ............11 Phase coherent measurements ........79 Release notes ..............15 Power servoing ............85 Remote control R&S NRQ6-K1 ............78 Basics ............... 206 R&S NRQ6-K2 ............85 Commands ............... 124 R&S NRQ6-K3 ............79 Common commands ..........125 Option key Conventions ..............
Page 245 ® Index R&S NRQ6 Resource string Socket ................209 HiSLIP ............... 208 Software update Socket ............... 209 See firmware ............. 189 VISA ................208 Solving errors ..............225 VXI-11 ............... 208 Sources Restart ................188 Trigger .................93 Result display Specifications ..............15 ACLR mode ..............
Page 246 ® Index R&S NRQ6 Trigger connector .............. 34 Troubleshooting ...............224 Error messages ..........224, 225 Firmware update ............230 Implausible results ............ 226 Selftest ..............227 Status information ............. 224 Units ................125 Unpacking ................. 17 Update file ............... 117 USB connection ..............

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