AR 50W1000D Operating And Service Manual
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AR 50W1000D Operating And Service Manual

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Operating and
Service Manual
50W1000D
Model
10043107
Part Number
Serial Number
160 Schoolhouse Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us

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  • Page 1 Operating and Service Manual 50W1000D Model 10043107 Part Number Serial Number 160 Schoolhouse Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us...
  • Page 3 REGULATION (EC) 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Substances of Very High Concern Chemicals (SVHC) Supporting documentation is held by AR RF/Microwave Instrumentation’s Quality department in Pennsylvania, United States. Place of issue:...
  • Page 5 Instructions for European EMC Conformity WARNING It is the responsibility of the user of this equipment to provide electromagnetic shielding, filtering and isolation which is necessary for EMC compliance to Directive 2014/30/EU. The equipment must therefore be operated in a shielded area which provides a sufficient level of attenuation to meet the radiated emissions and immunity specifications.
  • Page 7 Avoid sudden care. stops and uneven surfaces. BEFORE APPLYING POWER Indicates a terminal intended for connection to an Your AR equipment may have more than one power supply external conductor protection against cable. Use only approved power cable(s). If you have not been...
  • Page 8 EQUIPMENT CONTAINING LASERS to unsafe product handling should be AR Field Probes (FL/PL Series) and Field Analyzers a fundamental consideration of every (FA Series) are Class 1 laser products containing user. An authoritative guideline for embedded Class 4 lasers.

  • Page 9: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................iii GENERAL INFORMATION ................1 General Description ....................1 Specifications ......................1 Power Supplies ....................... 1 Installation ......................2 1.4.1 Location ........................2 1.4.2 Power ........................2 OPERATING INSTRUCTIONS ................ 7 General ........................7 Amplifier Front and Rear Panels................
  • Page 10 Model 50W1000D FIGURES Model 50W1000D Front Panel ................7 Model 50W1000D Rear Panel ................8 Typical Response at -20dBm Input and 0dBm Input ........... 26 Typical W Module Response ................27 Typical A1 Pre-Amplifier Response ..............27 TABLES IEEE-488 Address Selection .................. 9 RS-232 Port Settings ....................

  • Page 11: General Information

    (EMI) susceptibility testing, as well as usage as a driver for frequency multipliers and high-power amplifiers. The Model 50W1000D can be operated locally by using the unit’s front panel controls, or remotely by using the unit’s IEEE-488, RS-232 interface, USB, or Ethernet interface.

  • Page 12: Installation

    Select an operating location that will permit air to circulate freely around the amplifier’s cabinet. The Model 50W1000D utilizes air cooling and should be located where the normal flow of air into or exiting from the unit will not be restricted, diverted, or re-circulated through the unit itself; in particular, the flow of warm air exiting the rear of the amplifier should not be impeded.
  • Page 13 Specifications Features 50W1000D The Model 50W1000D is a solid-state, self- blockage or fan failure. The front panel indi- contained, air-cooled, broadband amplifier cates the operate status and fault conditions if  50 Watts CW designed for applications where instantaneous an over-temperature or power supply fault has ...
  • Page 14 CAN/CSA C22.2 #61010-1 50 watts, -30 dBc typical at 50 watts CENELEC EN 61010-1 SPURIOUS: Minus 73 dBc typical RoHS DIRECTIVE 2011/65/EU EXPORT CLASSIFICATION: EAR99   Ordering Options Contact your AR RF/Microwave Instrumentation Sales Associate for specific model configuration pricing.
  • Page 15 Page 3 Graphs 50W1000D  50 Watts CW  50MHz-1000MHz...
  • Page 16 Page 4 Graphs 50W1000D  50 Watts CW  50MHz-1000MHz...
  • Page 17 Page 5 Envelope Drawing 50W1000D  50 Watts CW  50MHz-1000MHz To order AR Products, call 215.723.8181. For an applications engineer call:800.933.8181. Direct to Service call: 215.723.0275 or email: service@arworld.us For Faxing Orders:866.859.0582 (Orders Only Please) info@arworld.us Approved for public release by AR RF/Microwave Instrumentation...

  • Page 19: Operating Instructions

    The 50W1000D RF power transistors are protected from over temperature by sensing the chassis temperature near the RF output transistors. In the event of a cooling fan failure or an airflow blockage, the DC voltage will be removed from the RF stages, when the chassis temperature reaches approximately 70°C.

  • Page 20: Local Operation

    Model 50W1000D Figure 2-2. Model 50W1000D Rear Panel LOCAL OPERATION 2.3.1 Power-up Sequence 1. Connect the input signal to the unit’s RF INPUT connector. The input signal level should be 0dBm maximum. 2. Connect the load to the unit’s RF OUTPUT connector.

  • Page 21: Remote Communications

    Model 50W1000D REMOTE COMMUNICATIONS This section describes remote operation of this product using the installed communications ports connected to a remote device such as a personal computer. All ports are active at all times, however only one port may be used at a time. Communicating through two or more ports at one time will cause data collisions and lost commands or queries.

  • Page 22: Rs-232 Communications

    Model 50W1000D 2.4.2 RS-232 Communications The RS-232 port is a serial communications bus. All commands and queries through this port must be terminated with a <LF>. When a valid query is received, it is processed and the result is immediately transmitted back over the RS-232 interface.

  • Page 23: Usb Communications

    The connector type for this port is ST. This port can be used with either an AR IF7000 RS-232 to Fiber-Optic Interface or an AR IF7001 USB to Fiber-Optic Interface. Note that these devices use SMA connectors so a fiber-optic cable is needed with ST connectors on one end and SMA connectors on the other.

  • Page 24: Remote Commands

    Lantronix Ethernet devices. This list of found devices will include any connected AR Ethernet devices. By selecting one of the connected devices from the list, its IP address and subnet mask can be changed along with a number of other settings.
  • Page 25 Model 50W1000D 2.4.6.1 Power On/Off This command controls the power on/off state of the amplifier. Syntax: Parameters: State(x): 0 = power off 1 = power on Response Format: None (No query for this command) Example: To turn the power on, send the following command: P1<LF>...
  • Page 26 Model 50W1000D 2.4.6.4 Identity Query to identify the amplifier: Syntax: *IDN? Parameters: None Query only (always requires a ? character) Response Format: f,m,n,<LF> Where: f = manufacturer m = model designation n = firmware revision Example: To get the identity of the amplifier, send the following command: *IDN?<LF>...
  • Page 27 Model 50W1000D 2.4.6.6 State Query to find the state of the amplifier. Syntax: STATE? Parameters: None Response Format: STATE=<space>xyza Where: x, y, z, and a are each an ASCII character representing a hexadecimal character. They can be 0 to 9 or A to F.
  • Page 28 Model 50W1000D 2.6.6.13 Faults (50W1000D) Query to find the faults that have occurred with the amplifier. Syntax: FSTA? Parameters: None Response Format: FSTA=<space>00xx Where: xx = 00 to 34 (Hexadecimal) Description No Fault Interlock Thermal A2 Amp A2 Example: To find out what faults have occurred, send the following query. FSTA?<LF>...

  • Page 29: Theory Of Operation

    3. THEORY OF OPERATION INTRODUCTION The Model 50W1000D RF amplifier consists of a 10-250 MHz RF amplifier assembly. The RF amplifier assembly consists of a Pre-Amplifier (Pre-Amp), and one final amplifier module. The power supply section consists of an AC input filter, a circuit breaker, +5V, +15V, and -15V power supplies;...

  • Page 30: A2 W Module (Schematic 10036697)

    Model 50W1000D 3.2.2 A2 W Module (Schematic 10036697) The W Module consists of RF matching circuits, an RF transistor a DC current control circuit, a DC switching circuit and a fault detection circuit. The RF input is fed to a 4:1 transformer composed of T1, T2, and T3. The push-pull output signal of the 4:1 transformer is connected to the gates of push-pull connected Q1.

  • Page 31: Control System

    Model 50W1000D CONTROL SYSTEM 3.4.1 A4 Control/Fault Board (Schematic #10042218) The A4 Control/Fault board consists of one 16-bit microcontrollers and several other ICs that monitor and indicate the status of the amplifier. Power is supplied using only a single 5-volt power supply. The board...
  • Page 32 Model 50W1000D Rev A...

  • Page 33: Maintenance

    4. MAINTENANCE GENERAL MAINTENANCE INFORMATION The Model 50W1000D requires very little maintenance since it is a relatively simple instrument. It is built with etched circuit wiring and solid state devices that will ensure long, trouble free life. However, should trouble occur special care must be taken in servicing to avoid damage to the devices or the etched circuit board.

  • Page 34: Troubleshooting

    GaN HEMTs and other ESD-sensitive devices. Troubleshooting the Model 50W1000D in a logical manner can speed the solution to a problem. The settings of potentiometers (pots), capacitors (caps), or other variables should not be disturbed until other problems have been eliminated.

  • Page 35: Power On Indication Doesn't Display On Front Panel Vacuum Fluorescent Display

    Fluorescent Display (VFD) when POWER Switch is Depressed (Schematic Diagram No. 10042686) 1. If the Model 50W1000D is operating in an otherwise normal fashion, the front panel VFD or the wiring to it could be defective. 2. Check the LOCAL/REMOTE switch on the unit’s front panel; it must be set to the LOCAL position in order to operate the front panel POWER switch.

  • Page 36: The Unit Cannot Be Operated Remotely

    RF energy when these doors are opened. NOTE: The Model 50W1000D is shipped with a mating connector, which has a jumper between Pins 1 and 8, installed in the rear panel interlock connector. The unit will not operate unless the interlock circuit is closed.

  • Page 37: Amplifier Faults (Schematic Diagram Nos. 10042686 And 10036697)

    Model 50W1000D 4.3.5 Amplifier Faults (Schematic Diagram Nos. 10042686 and 10036697) 1. The fault output the A2 W module is sensed on A4, J13, pin 9. 2. The Amplifier Fault LED (DS2) should be lit, indicating a module failure. 3. Verify the correct voltages to the modules. Troubleshoot any incorrect voltages.
  • Page 38 1. The Model 50W1000D’s typical gain response at 0 dBm input and -20 dBm input is shown in Figure 4-1. The actual gain may vary considerably from that shown in Figure 4-1 but should be ≥ 47 dBm at 0dBm input (TR2).

  • Page 39: Typical W Module Response

    Model 50W1000D 2. Typical Module response is shown in Figure 4-2. Figure 4-2. Typical W Module Response 3. The typical response for the A1 Pre-Amplifier (at maximum gain setting) is shown in Figure 4-3. Figure 4-3. Typical A1 Pre-Amplifier Response...
  • Page 40 Model 50W1000D Rev A...
  • Page 41 These modules are not field- repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.

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10043107

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