Page 1 Tektronix LE160 & LE320 Linear Equalizers Instruction Manual Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
Page 2 Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
Page 3: Table Of Contents
......................Power off the instrument ......................Operating basics Instrument connections ........................Top view ............................ Side view ..........................User interface ..........................Connect view ........................... Common controls ........................Individual tap controls ......................Frequency response graphs ..................... Tektronix LE160 & LE320 Instruction Manual...
Page 4 Repack the instrument for shipment ..................... Troubleshooting information ......................Check for common problems ....................Appendix A - LE160/LE320 software license upgrade information Upgrade the software license on the instrument ................Verify the license information for the upgrade ................Appendix B - Theory of operation Block diagram ..........................
Page 5 PI_tap9_out_cal_Q (Query only) .................... PI_tap9_out_enable ......................... PI_tap9_statefile_load (Command only) ................. PI_tap9_statefile_save (Command only) ................PI_tap9_tap_enable ......................... PI_tap9_tap_enable_all ......................PI_tap9_tap_val ........................Raw 9-Tap Commands ......................... PI_tap9R_agc_gain ......................... PI_tap9R_agc_lev ........................PI_tap9R_agc_state ......................... PI_tap9R_offs_state ........................ PI_tap9R_offs_val ........................Tektronix LE160 & LE320 Instruction Manual...
Page 6 PI_cds_add_pole (Command only) ..................PI_cds_add_zero (Command only) ..................PI_cds_agc_gain ........................PI_cds_agc_lev ........................PI_cds_agc_state ........................PI_cds_emu_cutoff ........................ PI_cds_emu_rolloff ....................... PI_cds_enable_reldelay ......................PI_cds_reldelay ........................PI_cds_offs_state ........................PI_cds_offs_val ........................PI_cds_out_amp ........................PI_cds_out_cal_Q (Query only) .................... PI_cds_out_enable ......................... Tektronix LE160 & LE320 Instruction Manual...
Page 7 Table of Contents PI_cds_pz_clear (Command only) ..................PI_cds_pz_process (Command only) ..................PI_cds_statefile_load (Command only) ................PI_cds_statefile_save (Command only) ................Tektronix LE160 & LE320 Instruction Manual...
Page 8 Table of Contents Tektronix LE160 & LE320 Instruction Manual...
Page 9: Important Safety Information
Read the safety sections of the other component manuals for warnings and cautions related to operating the system. When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system. Tektronix LE160 & LE320 Instruction Manual...
Page 10 Slots and openings are provided for ventilation and should never be covered or otherwise obstructed. Do not push objects into any of the openings. viii Tektronix LE160 & LE320 Instruction Manual...
Page 11: Service Safety Summary
Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. Verify safety after repair. Always recheck ground continuity and mains dielectric strength after performing a repair. Tektronix LE160 & LE320 Instruction Manual...
Page 12: Terms In The Manual
(This symbol may also be used to refer the user to ratings in the manual.) The following symbols may appear on the product: Tektronix LE160 & LE320 Instruction Manual...
Page 13: Compliance Information
IEC 61000-4-8. Power frequency magnetic field immunity test. EN 61000-3-2 EN 61000-3-3. Voltage changes, fluctuations, and flicker Mfr. Compliance Contact. Tektronix, Inc. PO Box 500, MS 19‐045 Beaverton, OR 97077, USA www.tek.com This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic interference.
Page 14: Safety Compliance
The area is protected from direct sunshine, rain, or direct wind. ■ Pollution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations. Tektronix LE160 & LE320 Instruction Manual...
Page 15: Environmental Compliance
This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Tektronix Web site (www.tek.com/productrecycling). Tektronix LE160 & LE320 Instruction Manual xiii...
Page 16 Restriction of hazardous This product is classified as an industrial monitoring and control instrument, and is not required to comply with the substance restrictions of the recast RoHS substances Directive 2011/65/EU until July 22, 2017. Tektronix LE160 & LE320 Instruction Manual...
Page 17: Preface
Preface The LE160 and LE320 linear equalizers support signal equalization on data rates from 8 Gbps to 32 Gbps with 29 dB automatic or manual gain control. The linear equalizers can be used as a stand-alone instrument with a host computer or can be used as part of a Tektronix BERTScope configuration.
Page 18 Preface Tektronix LE160 & LE320 Instruction Manual...
Page 19: Getting Started
PC or a Tektronix BERTScope through a USB 2.0 connection. The LE160 Linear Equalizer operates at rates up to 16 Gb/s and the LE320 Linear Equalizer operates at rates up to 32 Gb/s.
Page 20: Key Features
The instrument comes with the following accessories: ■ AC power adapter, Tektronix part number 119-7836-xx ■ USB cable, USB-A to Mini USB-B for PC connection, Tektronix part number 174-6106-xx ■ Two (2) 6-in coaxial cables, K male to K male, for linear equalizer-to-DUT connection, Tektronix part number 174-6362-xx ■...
Page 21: Instrument Options
Adds S-parameter channel modeler Installation Unpack the instrument and check that you have received all items listed as Standard Accessories. Check the Tektronix Web site (www.tektronix.com) for the most current information. Site considerations The linear equalizer is intended to be operated in a controlled laboratory environment.
Page 22: Operating Requirements
Getting started Operating requirements You will need the following equipment and software to install the instrument: ■ Host PC for stand-alone operation or a Tektronix BERTScope BSA175C or BSA286C when used in a BERTScope configuration. ■ Linear equalizer ■ Tektronix DSA8300 oscilloscope with the following: ■...
Page 23: Configuration
Configuration The following figure shows a typical connection block diagram of the linear equalizer connected to Tektronix DSA8300 oscilloscope and to a Tektronix BERTScope or host PC. Your configuration may vary. Figure 2: Block diagram of the linear equalizer connected to other equipment...
Page 24: Download The Le Application Software
Complete the following steps to download the latest LE application software on the host PC: 1. Go to the Tektronix Web site at (http://www.tek.com). 2. Enter Signal Conditioning and Equalization in the search field and click 3. Locate and double-click the link for the LE Application Software.
Page 25: Power Off The Instrument
Enable LED is off. 2. Push the Power button to turn the power off; the power LED should turn off. 3. Disconnect the power adapter and the USB cable from the linear equalizer. Tektronix LE160 & LE320 Instruction Manual...
Page 26 Getting started Tektronix LE160 & LE320 Instruction Manual...
Page 27: Operating Basics
Top view The following figure and table describe the controls and connectors on the linear equalizer from the top of the instrument. Figure 3: Linear equalizer top view Tektronix LE160 & LE320 Instruction Manual...
Page 28 Attention LED If this LED turns on, there may be a hardware fault. To clear this LED, try cycling the power on the linear equalizer. If the LED stays on, contact your local Tektronix representative for further action. Enable button Push this button to turn on the Enable LED.
Page 29: Side View
Use these screws (two on the front and two on the rear) as needed to secure the linear equalizer above the DUT. Do not use any screws besides the ones supplied with the linear equalizer to avoid damaging the instrument. Tektronix LE160 & LE320 Instruction Manual...
Page 30: User Interface
Click CONNECT to connect to the linear equalizer. After connecting to the linear equalizer, the button label changes to DISCONNECT. Click DISCONNECT to disconnect from the linear equalizer highlighted in the instrument list. Tektronix LE160 & LE320 Instruction Manual...
Page 31 If a MyDocuments folder does not exist, the application will create a Tektronix-LE subfolder where it can save the state files. Clear the check box to save or recall the state information to a custom location on the PC listed in the Save State Files in: field.
Page 32: Common Controls
MANand you can use the slider control to adjust the offset. The actual values shown at the bottom of the control are not calibrated; adjust the offset while monitoring the output signal for the best quality. Tektronix LE160 & LE320 Instruction Manual...
Page 33 Situation 1. Consider a state file that was saved in the 4-Tap mode with an ■ LE160. If the emulated bit rate in the file overlaps with the available bit rates for an LE320, then the file can be successfully loaded onto an LE320 and it should produce the desired results.
Page 34 3. If the Gain Adjust is set ot maximum and the output level is still too low, the input signal level needs to be increased. Go back to the first step and try to find an acceptable setup using a higher input signal level. Tektronix LE160 & LE320 Instruction Manual...
Page 35: Individual Tap Controls
All emulated modes always enable all nine taps (ON). The only way to turn off the hardware taps in an emulated setup, is to switch to one of the 9-Tap modes and turn off the tap. However, switching back to the emulated mode will not preserve that change. Tektronix LE160 & LE320 Instruction Manual...
Page 36: Frequency Response Graphs
For example, this can be useful when you manually set up a CTLE frequency response profile for the first time. The resultant taps can be saved for future use. Figure 8: Amplitude and Phase vs. Frequency chart Tektronix LE160 & LE320 Instruction Manual...
Page 37: 4-Tap Operating Mode
Emulated Data Rate. To emulate a clocked DPP unit, a clock rate must be supplied. The ranges of available clock rates depend on the linear equalizer tap spacing, which is different for the LE160 and the LE320. Enter the data rate either directly or click the buttons to select the data rate.
Page 38 Tap setting which do not have valid pre-shoot or de-emphasis equivalents can still be successfully emulated and will not cause the Valid indicator to be red. Tektronix LE160 & LE320 Instruction Manual...
Page 39: 9-Tap Operating Mode
Although linearity corrections for tap gains are provided in this operating mode, you will still see deviations from the frequency and time domain responses of a theoretically ideal 9-tap linear FIR filter. Tektronix LE160 & LE320 Instruction Manual...
Page 40: Raw 9-Tap Operating Mode
The tap gain numbers are integers between -63 and +63 in this mode. Larger numbers indicate larger gains; but they are not linearly related to the actual gain and no corrections for this non-linear behavior are applied in this mode. Tektronix LE160 & LE320 Instruction Manual...
Page 41: Spm - S-Parameter Modeler Operating Mode
SPM view. If you select an invalid file, an error message displays below the button and might include helpful information explaining why the file was invalid. Figure 13: SPM view with a valid .s2p file Tektronix LE160 & LE320 Instruction Manual...
Page 42 A second use of the roll-off setting is to emulate linear-phase impairments with a linear slope (linear in dB). This requires loading a flat S-parameter first and it might be more convenient to use the roll-off setting in the CDS mode for this purpose. Tektronix LE160 & LE320 Instruction Manual...
Page 43: Cds-Channel Designer Operating Mode
Option CDS. Figure 14: CDS operating mode This view provides two tables to enter the zero and pole locations. Click the Help button in the view to see helpful tips on inputting data. Tektronix LE160 & LE320 Instruction Manual...
Page 44 Emulation controls. The emulation controls (cutoff frequency and Add Rolloff controls) function the same as they do in the SPM mode. Refer to SPM - S- Parameter Modeler operating mode for more information on these controls. Tektronix LE160 & LE320 Instruction Manual...
Page 45 CDS mode because the changes will be lost when switching back to the CDS mode. Help button. Click the Help button to open a dialog window containing useful tips for entering pole and zero locations. Tektronix LE160 & LE320 Instruction Manual...
Page 46 Operating basics Tektronix LE160 & LE320 Instruction Manual...
Page 47: Specifications
Specifications Refer to the LE160 & LE320 Linear Equalizer Product Specification and Performance Verification Technical Reference manual (Tektronix part number, 077-0884-xx) for the list of product specifications and procedures to verify those specifications. Tektronix LE160 & LE320 Instruction Manual...
Page 48 Specifications Tektronix LE160 & LE320 Instruction Manual...
Page 49: Maintenance
This section provides high-level service information and procedures for your instrument. Service offerings Tektronix provides service to cover repair under warranty as well as other services that are designed to meet your specific service needs. Whether providing warranty repair service or any of the other services listed below, Tektronix service technicians are well equipped to service your instrument.
Page 50: Inspection And Cleaning
Use only deionized water when cleaning. Use a 75% isopropyl alcohol ■ solution as a cleanser and rinse with deionized water. Do not use chemical cleaning agents; they may damage the instrument. ■ Avoid chemicals that contain benzene, toluene, xylene, acetone, or similar solvents. Tektronix LE160 & LE320 Instruction Manual...
Page 51: Repack The Instrument For Shipment
Maintenance Repack the instrument for shipment If the instrument is to be shipped to a Tektronix service center for repair, attach a tag showing the following information: ■ Name of the product owner ■ Address of the owner ■ Instrument serial number ■...
Page 52 Maintenance Tektronix LE160 & LE320 Instruction Manual...
Page 53: Appendix A - Le160/Le320 Software License Upgrade Information
The LE160/LE320 software features, available at time of manufacture, are controlled by a software license key which is generated by Tektronix during the manufacturing process. To add software features to your product, you can purchase an upgrade from Tektronix. This will result in a new license certificate which contains a new license key.
Page 54 Appendix A - LE160/LE320 software license upgrade information You should see the serial number of your instrument in the list of connected devices. 4. Verify that the product serial number is the same as your instrument. 5. Select the License Information check box to display the License information, similar to the following figure.
Page 55 Appendix A - LE160/LE320 software license upgrade information 6. Click Read to obtain the current software license key. 7. Refer to your upgrade license certificate; it should look similar to the following figure. The upgrade license certificate is called an Option Key. It lists the features enabled or authorized by the Option Key.
Page 56 Appendix A - LE160/LE320 software license upgrade information The filled out information should look similar to the following figure. 9. Click Save to save the upgrade information. The application records the upgrade key and then clears the License information field.
Page 57: Verify The License Information For The Upgrade
(such as SPM or CDS). The new views should display. If you experience any problems, verify that you correctly entered the upgrade information. If you experience any problems, contact your local Tektronix representative for further action. Tektronix LE160 & LE320 Instruction Manual...
Page 58 Appendix A - LE160/LE320 software license upgrade information Tektronix LE160 & LE320 Instruction Manual...
Page 59: Appendix B - Theory Of Operation
The linear equalizer contains a chain of eight fixed delays (18 ps for the LE320 and 24 ps for the LE160) which provides nine copies of the input signal. Each copy is delayed by the same amount from the previous one.
Page 60: Operating Modes
The operating modes are independent and each has a separate memory of its state. Settings such as, the output amplitude and output enabled are remembered on a mode-by-mode basis. Tektronix LE160 & LE320 Instruction Manual...
Page 61 The other emulated modes require more time to make calculations; they contain a GO button that must be activated (clicked) after specified behavior is specified or changed. Tektronix LE160 & LE320 Instruction Manual...
Page 62 9-Tap mode in which the tuning was done. Changing from the 9-Tap modes back into an emulated mode will re-load the nine tap values with calculated values; this will overwrite any fine tuning that may have been done. Tektronix LE160 & LE320 Instruction Manual...
Page 63: General Guidance
Appendix - C Remote control guidelines and commands The Tektronix Linear Equalizer (LE) programmable interface is a COM API which was registered by the installation process. For convenience, the COM API type library is also available in the installation directory.
Page 64 It is provided as a compressed archive of a Visual Studio 2010 project. Please note that this program is copyright protected by Tektronix and is provided for informational purposes only.
Page 65: Command Reference Overview
Most commands have both a set form and a query form. The query form of the command differs from the set form by a "Q" on the end. Not all commands have both a set and a query form. Some commands have only set and some have only query. Tektronix LE160 & LE320 Instruction Manual...
Page 66 See NR1, NR2, and NR3 can be type NR1, NR2, or NR3 examples in this table Double Double precision numbers NRf numeric String Alphanumeric characters (must "Testing 1, 2, 3" be within quotation marks) Tektronix LE160 & LE320 Instruction Manual...
Page 67: Connection Commands
Conditions Only one linear equalizer can be connected at one time. Group Connection Syntax PI_connect <unit> Arguments <unit> ::= <NR1>, a value between 1 and 4. Examples PI_connect 1 connects to linear equalizer 1. Tektronix LE160 & LE320 Instruction Manual...
Page 68: Pi_Conn_Avail_Q (Query Only)
<index> identifies the position of the linear equalizer within the string array. Use this number as the <unit> variable in other commands. <model> is the LE160 or LE320. <sp> ::= space <serial_number> is the manufacturing serial number of the linear equalizer.
Page 69: Pi_Conn_Power
Supports connections of up to four linear equalizers. This command can be issued from any mode. Group Connection Syntax PI_conn_refresh Arguments None Returns A single <NR1> value. Examples PI_conn_refresh might return 2 indicating that two linear equalizers are available for connection. Tektronix LE160 & LE320 Instruction Manual...
Page 70: Pi_Disconnect_All (Command Only)
PI_disconnect_all (Command only) Disconnect all linear equalizers from the application. Conditions This command can be issued from any mode. Group Connection Syntax PI_disconnect_all Arguments None Examples PI_disconnect_all disconnects all linear equalizers managed by the application. Tektronix LE160 & LE320 Instruction Manual...
Page 71: Mode Commands
A single <NR1> value. Example PI_mode 1,1,1 sets the linear equalizer #1, Channel 1, to the 9-Tap mode. PI_mode_Q 2,1 which returns 3, indicates that the linear equalizer #2, Channel 1, is in the 4-Tap mode. Tektronix LE160 & LE320 Instruction Manual...
Page 72: 4-Tap Commands
Enabled, int e_num, string e_str bool PI_tap4_tap_val int unit, int chan, int tap, int val int e_num, string e_str bool PI_tap4_tap_val_Q int unit, int chan, int tap int tap val, int e_num, string e_str Tektronix LE160 & LE320 Instruction Manual...
Page 73: Pi_Tap4_Agc_Gain
<gain> ::= <double>, the uncalibrated gain adjustment value in the range from 1.80 to 2.50. Returns A single <NRf> number. Examples PI_tap4_agc_gain 1,1,2.10 sets the AGC Gain adjust value to 2.10 for Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 74: Pi_Tap4_Agc_Lev
<level> ::= <NR1> the AGC level; a number from 0 to 7. Returns A single <NR1> value. Examples PI_tap4_agc_lev_Q 1,1 might return 3 indicating that the AGC level for Channel 1 of linear equalizer #1 is set to 3. Tektronix LE160 & LE320 Instruction Manual...
Page 75: Pi_Tap4_Agc_State
1 indicates that the lock is true and turns on the UNCAL state and warning. Returns A single <Boolean> value. Examples PI_tap4_agc_state 1,1 enables the automatic gain control lock and turns on the UNCAL state or warning on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 76: Pi_Tap4_Deemph
<unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <rate> ::= <double>, data rate. Returns A single <NRf> value. Examples PI_tap4_emu_rate 1,1,2.5E10 sets the rate for Channel 1 of linear equalizer #1 to 25.00 Gb/s. Tektronix LE160 & LE320 Instruction Manual...
Page 77: Pi_Tap4_Offs_State
A single <Boolean> value. 1 or ON indicates that the input offset control is set to AUTO; 0 or OFF indicates that the input offset control is set to manual control. Examples PI_tap4_offs_state 1,1,0 sets the input offset control for Channel 1 of linear equalizer #1 to manual control. Tektronix LE160 & LE320 Instruction Manual...
Page 78: Pi_Tap4_Offs_Val
<offset> ::= <double>, the input offset value, a number between -78 and 78. Returns A single <NR1> value. The returned value is in millivolts. Examples PI_tap4_offs_val 1,1,50 sets the input offset for Channel 1 of linear equalizer #1 to 50 mv. Tektronix LE160 & LE320 Instruction Manual...
Page 79: Pi_Tap4_Out_Amp
6.0 volts, but must be specified in mV). Returns A single <double> value. Examples PI_tap4_out_amp_Q 1,1 might return 0 indicating that the output amplitude for Channel 1 of linear equalizer #1 is 0 mV Tektronix LE160 & LE320 Instruction Manual...
Page 80: Pi_Tap4_Out_Cal_Q (Query Only)
A 0 indicates that the Output Amplitude control is uncalibrated and the label is red. Examples PI_tap4_out_cal_Q 1,1 might return 1 indicating that the Output Amplitude control for Channel 1 of linear equalizer #1 is calibrated (the AGC Lock control is off). Tektronix LE160 & LE320 Instruction Manual...
Page 81: Pi_Tap4_Out_Enable
<channel> ::= <NR1>, channel 1 or 2. <dBvalue> ::= <double>, pre-shoot value. Returns A single <NRf> value. Examples PI_tap4_preshoot 1,1,15 sets the pre-shoot value for Channel 1 of linear equalizer #1 to 15 dB. Tektronix LE160 & LE320 Instruction Manual...
Page 82: Pi_Tap4_Statefile_Load (Command Only)
<unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_tap4_statefile_save 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-TAP4- State-test4-18.xml" saves the TekLE-TAP4-State-test4-18.xml file to the C:Users \Documents\Tektronix-LE folder on the host computer. Tektronix LE160 & LE320 Instruction Manual...
Page 83: Pi_Tap4_Tap_Enable
<channel> ::= <NR1>, channel 1 or 2. <enable> ::= <Boolean> where 1 enables all taps or 0 disables all taps. Returns A <Boolean> value. Examples PI_tap4_tap_enable_all 2,1,1 enables all taps on Channel 1 of linear equalizer #2. Tektronix LE160 & LE320 Instruction Manual...
Page 84: Pi_Tap4_Tap_Val
<tap> ::= <NR1>, a tap number between 1 and 4. <tap, tap-value>, the tap number, where tap-value is an integer between -100 and 100. Returns An <NR1> tap value. Examples PI_tap4_tap_val 2,2,2,45 sets tap #2 on linear equalizer #2, Channel 2, to 45. Tektronix LE160 & LE320 Instruction Manual...
Page 85: 9-Tap Commands
PI_tap9_tap_val int unit, int chan, int tap, int val int e_num, string e_str bool PI_tap9_tap_val_Q int unit, int chan, int tap int tap_val, int e_num, string e_str Tektronix LE160 & LE320 Instruction Manual...
Page 86: Pi_Tap9_Agc_Gain
<gain> ::= <double>, the uncalibrated gain adjustment value in the range from 1.80 to 2.50. Returns A single <NRf> number. Examples PI_tap9_agc_gain 1,1,2.10 sets the AGC Gain adjust value to 2.10 for Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 87: Pi_Tap9_Agc_Lev
<level> ::= <NR1> the AGC level; a number from 0 to 7. Returns A single <NR1> value. Examples PI_tap9_agc_lev_Q 1,1 might return 3 indicating that the AGC level for Channel 1 of linear equalizer #1 is set to 3. Tektronix LE160 & LE320 Instruction Manual...
Page 88: Pi_Tap9_Agc_State
1 indicates that the lock is true and enables the UNCAL state or warning. Returns A single <Boolean> value. Examples PI_tap9_agc_state 1,1 enables the automatic gain control lock and enables the UNCAL state or warning on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 89: Pi_Tap9_Offs_State
A single <Boolean> value. 1 indicates that the input offset control is set to AUTO; 0 indicates that the input offset control is set to manual control. Examples PI_tap9_offs_state 1,1,0 sets the input offset control for Channel 1 of linear equalizer #1 to manual control. Tektronix LE160 & LE320 Instruction Manual...
Page 90: Pi_Tap9_Offs_Val
<offset> ::= <double>, the input offset value, a number between -78 and 78. Returns A single <NRf> value. the returned value is in millivolts. Examples PI_tap9_offs_val 1,1,20 sets the input offset for Channel 1 of linear equalizer #1 to 20 mv. Tektronix LE160 & LE320 Instruction Manual...
Page 91: Pi_Tap9_Out_Amp
6.0 volts, but must be specified in mV). Returns A single <NRf> value. Examples PI_tap9_out_amp_Q 1,1 might return 0 indicating that the Output Amplitude for Channel 1 of linear equalizer #1 is 0 V Tektronix LE160 & LE320 Instruction Manual...
Page 92: Pi_Tap9_Out_Cal_Q (Query Only)
A 0 indicates that the Output Amplitude control is uncalibrated. Examples PI_tap9_out_cal_Q 1,1 might return 1 indicating that the Output Amplitude control for Channel 1 of linear equalizer #1 is calibrated (the AGC Lock control is off). Tektronix LE160 & LE320 Instruction Manual...
Page 93: Pi_Tap9_Out_Enable
PI_tap9_statefile_load <unit>,<channel>, <path-filename> Related commands PI_tap9_statefile_save Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_tap9_statefile_load 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-Tap9- State-Qualtest1.xml" loads the TekLE-Tap9-State-Qualtest1.xml file. Tektronix LE160 & LE320 Instruction Manual...
Page 94: Pi_Tap9_Statefile_Save (Command Only)
Syntax PI_tap9_tap_enable <unit>,<channel>,<tap, tap-state> PI_tap9_tap_enable_Q <unit>,<channel>, <tap> Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <tap> ::= <NR1>, a tap number between 1 and 9. Tektronix LE160 & LE320 Instruction Manual...
Page 95: Pi_Tap9_Tap_Enable_All
<enable> ::= <Boolean>, where 1 enables all taps or 0 disables all taps. Returns A <Boolean> value. Examples PI_tap9_tap_enable_all 2,1,1 enables all taps on Channel 1 of linear equalizer #2 in the 9-Tap mode. Tektronix LE160 & LE320 Instruction Manual...
Page 96: Pi_Tap9_Tap_Val
<tap, tap-value>, the tap number, where tap-value is an integer between -100 and 100. Returns The tap number and an <NR1> tap value. Examples PI_tap9_tap_val 2,2,2,45 sets tap #2 on linear equalizer #2, Channel 2, to 45. Tektronix LE160 & LE320 Instruction Manual...
Page 97: Raw 9-Tap Commands
PI_tap9R_tap_val int unit, int chan, int tap, int val int e_num, string e_str bool PI_tap9R_tap_val_Q int unit, int chan, int tap int tap_val, int e_num, string e_str Tektronix LE160 & LE320 Instruction Manual...
Page 98: Pi_Tap9R_Agc_Gain
<gain> ::= <double>, the uncalibrated gain adjustment value in the range from 1.80 to 2.50. Returns A single <NRf> number. Examples PI_tap9R_agc_gain 1,1,2.10 sets the AGC Gain adjust value to 2.10 for Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 99: Pi_Tap9R_Agc_Lev
::= <NR1> the AGC level; a number from 0 to 7. Returns A single <NR1> value. Examples PI_tap9R_agc_lev_Q 1,1 might return 3 indicating that the AGC level for Channel 1 of linear equalizer #1 is set to 3. Tektronix LE160 & LE320 Instruction Manual...
Page 100: Pi_Tap9R_Agc_State
1 indicates that the lock is true and turns on the UNCAL state or warning. Returns A single <Boolean> value. Examples PI_tap9R_agc_state 1,1 enables the automatic gain control lock and turns on the UNCAL state or warning on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 101: Pi_Tap9R_Offs_State
A single <Boolean> value. 1 or ON indicates that the input offset control is set to AUTO; 0 or OFF indicates that the input offset control is set to manual control. Examples PI_tap9R_offs_state 1,1,0 sets the input offset control for Channel 1 of linear equalizer #1 to manual control. Tektronix LE160 & LE320 Instruction Manual...
Page 102: Pi_Tap9R_Offs_Val
<offset> ::= <double>, the input offset value, a number between -31 and +31. Returns A single <NRf> value. Examples PI_tap9R_offs_val 1,1,20 sets the input offset for Channel 1 of linear equalizer #1 to 20. Tektronix LE160 & LE320 Instruction Manual...
Page 103: Pi_Tap9R_Out_Amp
A single <boolean> value. 1 indicates that the output state is enabled or on; 0 indicates that the output state is disabled or off. Examples PI_tap9R_out_enable 1,1,0 enables the Channel 1 output of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 104: Pi_Tap9R_Statefile_Load (Command Only)
<unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_tap9R_statefile_save 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-TAP9R- State-test4-18.xml" saves the TekLE-TAP9R-State-test4-18.xml file to the C:Users\Documents\Tektronix-LE folder on the host computer. Tektronix LE160 & LE320 Instruction Manual...
Page 105: Pi_Tap9R_Tap_Enable
Must be in Raw 9-Tap mode (1) and connected. Group Raw 9-Tap Syntax PI_tap9R_tap_enable_all <unit>,<channel>,<enable> PI_tap9R_tap_enable_all_Q <unit>,<channel> Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 106: Pi_Tap9R_Tap_Val
<tap, tap-value>, the tap number, where tap-value is an integer between -63 and Returns The tap number and an <NR1> tap value. Examples PI_tap9R_tap_val 2,2,2,45 sets tap #2 on linear equalizer #2, Channel 2, to 45. Tektronix LE160 & LE320 Instruction Manual...
Page 107: Spm Commands
PI_spm_set_spmfile PI_spm_statefile_load int unit, int channel, string filePath bool compatible, int e_num, string e_str PI_spm_statefile_save int unit, int channel, string filePath, bool int e_num, out string e_str overwrite Tektronix LE160 & LE320 Instruction Manual...
Page 108: Pi_Spm_Agc_Gain
Must be in SPM mode (4) and connected. SPM command preconditions on page 90. Group Syntax PI_spm_agc_gain <unit>,<channel>, <gain> PI_spm_agc_gain_Q <unit>,<channel> Related commands PI_spm_agc_state Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 109: Pi_Spm_Agc_Lev
<level> ::= <NR1> the AGC level; a number from 0 to 7. Returns A single <NR1> value. Examples PI_spm_agc_lev_Q 1,1 might return 3 indicating that the AGC level for Channel 1 of linear equalizer #1 is set to 3. Tektronix LE160 & LE320 Instruction Manual...
Page 110: Pi_Spm_Agc_State
1 indicates that the lock is true and enables the UNCAL state or warning. Returns A single <Boolean> value. Examples PI_spm_agc_state 1,1 enables the automatic gain control lock and enables the UNCAL state or warning on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 111: Pi_Spm_Emu_Cutoff
Appendix - C Remote control guidelines and commands PI_spm_emu_cutoff Sets or returns the maximum cutoff frequency in SPM mode. Conditions The cutoff frequency depends on the instrument type, an LE160 or LE320. Must be in SPM mode (4) and connected. SPM command preconditions on page 90.
Page 112: Pi_Spm_Emu_Rolloff
<channel> ::= <NR1>, channel 1 or 2. <roll-off> ::= <NRf>, roll-off value in dB/GHz. Returns A single <NRf> number. Examples PI_spm_emu_rolloff_Q 1,1 might return 0.00 indicating that the roll-off value for Channel 1 of linear equalizer #1 was 0.00 dB/GHz. Tektronix LE160 & LE320 Instruction Manual...
Page 113: Pi_Spm_Enable_Reldelay
A single <Boolean> value. A 1 indicates that the relative delay is on; a 0 indicates that the relative delay is off. Examples PI_spm_enable_reldelay 1,1,1 enables the relative delay on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 114: Pi_Spm_Process
Must be in SPM mode (4) and connected. SPM command preconditions on page 90. Group Syntax PI_spm_offs_state <unit>,<channel>,{1|0} PI_spm_offs_state_Q <unit>,<channel> Related commands PI_spm_offs_val Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 115: Pi_Spm_Offs_Val
<offset> ::= <double>, the input offset value, a number between -78 and 78. Returns A single <NRf> value. the returned value is in millivolts. Examples PI_spm_offs_val 1,1,20 sets the input offset for Channel 1 of linear equalizer #1 to 20 mv. Tektronix LE160 & LE320 Instruction Manual...
Page 116: Pi_Spm_Out_Amp
6.0 volts, but must be specified in mV). Returns A single <double> value. Examples PI_spm_out_amp_Q 1,1 might return 0 indicating that the output amplitude for Channel 1 of linear equalizer #1 is 0 mV Tektronix LE160 & LE320 Instruction Manual...
Page 117: Pi_Spm_Out_Cal_Q
A 0 indicates that the Output Amplitude control is uncalibrated and the label is red. Examples PI_spm_out_cal_Q 1,1 might return 1 indicating that the Output Amplitude control for Channel 1 of linear equalizer #1 is calibrated (the AGC Lock control is off). Tektronix LE160 & LE320 Instruction Manual...
Page 118: Pi_Spm_Out_Enable
Must be in SPM mode (4) and connected. SPM command preconditions on page 90. Group Syntax SPI_spm_reldelay <unit>,<channel>,<delay> PI_spm_reldelay_Q <unit>,<channel> Related commands PI_spm_enable_reldelay Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 119: Pi_Spm_Set_Spmfile (Command Only)
Group Syntax PI_spm_set_spmfile <unit>,<channel>,<path-filepath Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_spm_set_spmfile 1,1, "C\Users|Documents|Tektronix-LE\TekLE-SPM-file1" sets the path name to C\Users|Documents|Tektronix-LE. Tektronix LE160 & LE320 Instruction Manual...
Page 120: Pi_Spm_Statefile_Load (Command Only)
<unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_spm_statefile_save 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-SPM- State-test4-18.xml" saves the TekLE-SPM-State-test4-18.xml file to the C:Users \Documents\Tektronix-LE folder on the host computer. Tektronix LE160 & LE320 Instruction Manual...
Page 121: Cds Commands
PI_cds_statefile_save int unit, int channel, string filePath, bool int e_num, string e_str overwrite PI_cds_statefile_load int unit, int channel, string filePath bool compatible, int e_num, string e_str Tektronix LE160 & LE320 Instruction Manual...
Page 122: Pi_Cds_Add_Pole (Command Only)
A single <Boolean> value, 1 if successfully added or 0 if not. Examples PI_cds_add_pole 1,1,-3.00,0 defines the pole location with a real component of -3.00 GHz and an imaginary component of 0 on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 123: Pi_Cds_Add_Zero (Command Only)
A single <Boolean> value, 1 if successfully added or 0 if not. Examples PI_cds_add_zero 1,1,-5.00,0 defines the zero location with a real component of -5.00 GHz and an imaginary component of 0 on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 124: Pi_Cds_Agc_Gain
<gain> ::= <NRf>, the uncalibrated gain adjustment value in the range from 1.80 to 2.50. Returns A single <NRf> number. Examples PI_cds_agc_gain 1,1,2.10 sets the AGC Gain adjust value to 2.10 for Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 125: Pi_Cds_Agc_Lev
<level> ::= <NR1> the AGC level; a number from 0 to 7. Returns A single <NR1> value. Examples PI_cds_agc_lev_Q 1,1 might return 3 indicating that the AGC level for Channel 1 of linear equalizer #1 is set to 3. Tektronix LE160 & LE320 Instruction Manual...
Page 126: Pi_Cds_Agc_State
ON or 1 indicates that the lock is true and enables the UNCAL state or warning. Returns A single <Boolean> value. Examples PI_cds_agc_state 1,1 enables the automatic gain control lock and enables the UNCAL state or warning on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 127: Pi_Cds_Emu_Cutoff
Appendix - C Remote control guidelines and commands PI_cds_emu_cutoff Sets or eturns the maximum cutoff frequency in CDS mode. Conditions The cutoff frequency depends on the instrument type, an LE160 or LE320. Must be in CDS mode (5) and connected. Group Syntax PI_cds_emu_cutoff <unit>,<channel>,<fmax>...
Page 128: Pi_Cds_Enable_Reldelay
A single <Boolean> value. A 1 or ON indicates that the relative delay is on; a 0 or OFF indicates that the relative delay is off. Examples PI_cds_enable_reldelay 1,1,1 enables the relative delay on Channel 1 of linear equalizer #1. Tektronix LE160 & LE320 Instruction Manual...
Page 129: Pi_Cds_Reldelay
Sets or returns the state of the input offset control in the CDS mode. Conditions None Group Syntax PI_cds_offs_state <unit>,<channel>,{1|0|ON|OFF} PI_cds_offs_state_Q <unit>,<channel> Related commands PI_cds_offs_val Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 130: Pi_Cds_Offs_Val
<offset> ::= <double>, the input offset value, a number between -78 and 78. Returns A single <NRf> value. the returned value is in millivolts. Examples PI_cds_offs_val 1,1,20 sets the input offset for Channel 1 of linear equalizer #1 to 20 mv. Tektronix LE160 & LE320 Instruction Manual...
Page 131: Pi_Cds_Out_Amp
<value> ::= <double>, the value of the output control from 0 to 6.00. Returns A single <NRf> value. Examples PI_cds_out_amp_Q 1,1 might return 0 indicating that the Output Amplitude for Channel 1 of linear equalizer #1 is 0 V Tektronix LE160 & LE320 Instruction Manual...
Page 132: Pi_Cds_Out_Cal_Q (Query Only)
Enables or disables the output state in the CDS mode. Conditions None Group Syntax PI_cds_out_enable <unit>,<channel>,{1|0|ON|OFF} PI_cds_out_enable_Q <unit>,<channel> Related commands PI_cds_out_amp Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Tektronix LE160 & LE320 Instruction Manual...
Page 133: Pi_Cds_Pz_Clear (Command Only)
Related commands PI_cds_add_pole, PI_cds_add_zero Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. Examples PI_cds_pz_clear 1,1 clears the poles and zeros for Channel 1 of liner equalizer Tektronix LE160 & LE320 Instruction Manual...
Page 134: Pi_Cds_Pz_Process (Command Only)
Related commands PI_cds_statefile_save, PI_cds_add_pole, PI_cds_add_zero, PI_cds_pz_clear Arguments <unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string> Examples PI_cds_statefile_load 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-CHM- State-test2.xml" loads the TekLE-CHM-State-test2.xml file. Tektronix LE160 & LE320 Instruction Manual...
Page 135: Pi_Cds_Statefile_Save (Command Only)
<unit> ::= <NR1>, a value between 1 and 4. <channel> ::= <NR1>, channel 1 or 2. <path-filename> ::= <string>. Examples PI_cds_statefile_save 1,2,"C:\Users\Documents\Tektronix-LE\TekLE-CHM- State-test4-18.xml" saves the TekLE-CHM-State-test4-18.xml file to the C:Users \Documents\Tektronix-LE folder on the host computer. Tektronix LE160 & LE320 Instruction Manual...
Page 136 Appendix - C Remote control guidelines and commands Tektronix LE160 & LE320 Instruction Manual...
Page 137 DPP, 19 emulation controls COM, 45 Add Rolloff, 24 COM API, 47 cutoff frequency, 24 command characteristics, 45 emulation messages, 20 command limitations, 45 Enable LED, 10 command syntax, 48 Enable/Disable button, 14 Tektronix LE160 & LE320 Instruction Manual...
Page 138 25 Power, 10 license information, 13 power adapter, 6, 11 license key, 35 Power LED, 10 license upgrade information, 35 power off procedure, 7 license upgrade procedure, 35 power on procedure, 6 Tektronix LE160 & LE320 Instruction Manual...
Page 139 15 warranty repair service, 31 site considerations, 3 software license key, 35 software requirements, 4 specifications, 29 zero locations table, 25 SPM commands, 89 zero locations units, 26 SPM mode, 23, 42 Tektronix LE160 & LE320 Instruction Manual...
Page 140 Index Tektronix LE160 & LE320 Instruction Manual...

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