Tektronix PSM3000 Series User Manual Download Page 69

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High Speed Logger Application

Measurement

Use the Measurement window to select measurement type, units, and frequency.
In order to get accurate measurements you will need to set the frequency. If

is selected, only the average or continuous wave power is recorded. If

Peak,

pulse…

is selected, then all of the indicated parameters are recorded.

RF and Microwave Power Sensors/Meters

Summary of Contents for PSM3000 Series

Page 1: ...xx PSM3000 PSM4000 and PSM5000 Series RF and Microwave Power Sensors Meters ZZZ User Manual P077059201 077 0592 01...

Page 2: ......

Page 3: ...PSM3000 PSM4000 and PSM5000 Series RF and Microwave Power Sensors Meters ZZZ User Manual xx www tektronix com 077 0592 01...

Page 4: ...and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tek...

Page 5: ...es taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance a...

Page 6: ......

Page 7: ...se Measurements 15 Pulse Profiling 16 Configure Instrument for Measurements 17 Power Meter Application 19 Front Panel Elements 19 Make an Average Power CW Measurement 27 Make a Pulse Measurement Using...

Page 8: ...ng a PSM5120 19 Figure 2 Diagram of a burst time slot 23 Figure 3 Pulse Profiling application interface 31 Figure 4 Gate positioning diagram 44 Figure 5 Position of gates for measurement 51 Figure 6 H...

Page 9: ...Contents List of Tables Table i Product documentation vii Table 1 Functions by instrument model 13 Table 2 Power Meter default values 25 Table 3 Sweep time values 37 RF and Microwave Power Sensors Me...

Page 10: ...Table of Contents iv RF and Microwave Power Sensors Meters...

Page 11: ...M3000 Series PSM4000 Series and PSM5000 Series RF and Microwave Power Sensors Meters The Getting Started chapter provides an overview of instrument features installation instructions and a functional...

Page 12: ...0 50MHz 18GHz N Type male PSM4410 50MHz 20GHz 3 5mm male PSM5110 100MHz 8GHz 3 5mm male PSM5120 100MHz 8GHz N Type male PSM5320 50MHz 18GHz N Type male PSM5410 50MHz 20GHz 3 5mm male Key Features Read...

Page 13: ...ion configuration and application information User manual this manual available in English German French Spanish Italian Portuguese Russian Korean Japanese Simplified Chinese and Traditional Chinese o...

Page 14: ...Preface viii RF and Microwave Power Sensors Meters...

Page 15: ...recommends using the USB cable supplied with this product The supplied cable has 20 AWG power conductors that are a heavier gauge than most USB cables NOTE Refer to the Specifications section of the...

Page 16: ...er measurements High speed Logging application allows you to take raw high speed readings from your instrument Pulse Profiling application PSM5000 series only provides the tools for complete character...

Page 17: ...d start automatically If the installation does not start automatically select Start Run and the media drive and a semicolon D for example and then setup exe or the location of the setup exe file you d...

Page 18: ...continue 5 The installer is ready to install the following software on your computer this will vary depending on options and instrument model Power Meter application Pulse Profiling application High S...

Page 19: ...Getting Started 6 Confirm location for download or provide a location and then click Next 7 When prompted confirm installation by selecting Next RF and Microwave Power Sensors Meters 5...

Page 20: ...Computer Install the USB Driver This instrument is powered through a USB cable that you attach to a computer Use the following procedure to install the USB driver so that the computer can communicate...

Page 21: ...ment to the computer 2 A Welcome to the Found New Hardware Wizard dialog box will appear Select Yes this time only and then select Next to continue 3 Select Install the software automatically Recommen...

Page 22: ...e software Once found the driver will install 5 The Wizard will show you when the installation is complete Select Finish You can now open the Power Meter application or other instrument applications t...

Page 23: ...o the instrument but that the instrument has not yet been recognized by the computer Bright green and steady This is the state for normal operation and shows that power is being supplied to the instru...

Page 24: ...bar To identify which instrument corresponds to which software window compare the serial number displayed in the software to the serial number stamped on the instrument body below the USB port Or cli...

Page 25: ...Turn on and preset a signal source 3 Turn the source RF output off 4 Connect the source to the instrument input connector Use adapters as required Use of cables may skew results so direct connection...

Page 26: ...Getting Started 12 RF and Microwave Power Sensors Meters...

Page 27: ...e 1 Functions by instrument model Function Model Description PSM3110 10 MHz 8 GHz 55 to 20 dBm PSM3120 10 MHz 8 GHz 55 to 20 dBm PSM3310 10 MHz 18 GHz 55 to 20 dBm PSM3320 10 MHz 18 GHz 55 to 20 dBm A...

Page 28: ...pulses These models can both be used with the Power Meter and the High Speed Logger applications In both applications you can select between CW average and Pulse measurements In addition to pulse powe...

Page 29: ...on and sampling system in these instruments make it possible to measure signals with modulation rates up to 10 MHz The real time sampling rate of PSM4000 and PSM5000 series instruments is 500 kS s whi...

Page 30: ...s and conditions apply digital filters to the envelope and set the software to average traces together The overall trace is shown in the Panoramic Trace window Pan and zoom functions let you select a...

Page 31: ...ent the software application will close Disconnect and then reconnect the instrument before reopening the application The new address will appear for that instrument Zero and Calibration These power s...

Page 32: ...Operating Basics 18 RF and Microwave Power Sensors Meters...

Page 33: ...r 3 15 VRMS Ensure that the RF input connector on the sensor and the mating connector are clean and undamaged NOTE Using more than one type of application at a time can result in errors It is recommen...

Page 34: ...menu item is found in the Save Recall drop down menu It calls a Manage Named states window from which you can delete and view named states Frequency Select the frequency units MHz or GHz The center f...

Page 35: ...layed If averaging is set high then the display updates slowly Extended Averaging Reset You can combine Averaging and Extended Averaging to balance stability and responsiveness for your application an...

Page 36: ...se correction factors are specified as frequency and amplitude pairs To load the correction factors go to the Frequency Response Offset window Click Add after each frequency and offset entry to build...

Page 37: ...The sweep time defines the duration of the measurement Resolution The power measurement data is taken at the real time sample rate of the instrument which is 500 kS s This results in a fixed resoluti...

Page 38: ...m will time out and return an ext trig indicator When the trigger in is inverted the system will look for a negative edge instead of a positive edge and begin the measurement when a negative edge is d...

Page 39: ...left The duty cycle is scaled vertically from 0 to 10 1 per division Crest Factor is scaled vertically from 0 to 20 dB 2 dB per division NOTE There is a separate High Speed Logger application availab...

Page 40: ...times This is particularly useful when multiple instruments are connected You can also find this item in the Utility drop down menu Set Address This item is located in the Utility drop down menu Use i...

Page 41: ...activate CW mode You can also enable CW from the Measurement menu NOTE For PSM3000 series instruments the software is always in CW mode so the button is not available 2 Click Measurement Set Frequency...

Page 42: ...ed a duty cycle of 10 0 10 then the pulse power would be calculated as Pulse Power 20 dBm 10log10 Duty Cycle 20 dBm 10 dB 10dBm NOTE The instrument must be in CW Power mode to access this method of du...

Page 43: ...he Set Frequency dialog box opens 3 Enter 1 GHz and click OK 4 Confirm that the instrument is set to continuously trigger and then click Triggering Internal Continuous In Pulse Power mode the software...

Page 44: ...RF power The software should indicate these approximate values 1 GHz 0 dBm pulse power 50 duty cycle 0 dBm peak 3 dBm average 3 dB crest factor the ratio between peak and average power The measurement...

Page 45: ...lays a trace of the pulse envelope and allows you to take measurements at any point on the trace CAUTION Do not exceed 23 dBm 200 mW or 3 15 VRMS Ensure that the RF input connector on the sensor and t...

Page 46: ...you identify and investigate areas of interest easily and quickly To view a portion of the Panoramic trace in more detail highlight the portion of the trace in which you are interested The highlighted...

Page 47: ...the capabilities of your printer For all of these displays you can set the resolution data source trace or gates minimum and maximum power and the number of data sets or runs with counter See page 16...

Page 48: ...on to start the automatic measurement feature and get a complete characterization of the pulse based on the selected sweep time Results Window This window allows you to set up markers and gates for sp...

Page 49: ...ge power while the pulse is on to the average power while the pulse is off during the first complete cycle NOTE The Auto Measurement feature requires at least two complete cycles of the pulse to be vi...

Page 50: ...nd that area of the display will become highlighted NOTE You can also place a window anywhere on the display without using the docking popup Simply click and drag the window to the desired location an...

Page 51: ...um value displayed in the Panoramic and Measurement windows It also allows you to change the vertical scale in the Measurement window The vertical scale setting only applies to the Measurement window...

Page 52: ...at do not fit into the trace are not averaged but are discarded Activating this function will tend to increase the noise on the trace but it improves the ability to see peaks For sweep times of 200 ms...

Page 53: ...et the trigger level when the trigger source is set to Internal Manual Level Edge Use this menu function to set the instrument to trigger on a positive or negative edge Continuous Use this menu functi...

Page 54: ...on allows you to choose from one two three or four poles The number of poles determines the roll off rate of the low pass video filter The greater the number of poles the steeper the roll off resultin...

Page 55: ...he following NOTE There is a procedure in this document for making a measurement using markers See page 48 Make a Marker Measurement Arrow Icons The arrow icons allow you to position the markers on a...

Page 56: ...ust be set to Gates NOTE Only one gate can be active at a time though all five gates can be displayed simultaneously The active gate will have an asterisk next to its letter in the toolbar and the gat...

Page 57: ...me restrictions as the PRT measurement Duty Cycle DC Returns the percentage of on time during a selected cycle The gates for a duty cycle measurement must be positioned with the same restrictions as t...

Page 58: ...lse width pulse repetition time pulse repetition frequency Mixed Set peak power crest factor pulse width pulse repetition frequency Below is a general gate positioning diagram that shows where to plac...

Page 59: ...play These icons are also available at the top of the Results window Display Options This toolbar allows you to adjust how the trace windows and other windows are viewed For example you can adjust the...

Page 60: ...o select color themes for the display from a drop down menu Grid On Off This button allows you to turn the Panoramic and Measurement Trace window grids on and off Meas Notation On Off This button allo...

Page 61: ...lications like Excel for further analysis Utility This toolbar enables you to set the instrument address and verify instrument ID It also allows you to perform two types of reset default setup and fac...

Page 62: ...ments are normally defined as the time between the 3 dB points on the rising and falling edges of a pulse When using markers for a measurement like this the results are highly dependent on the placeme...

Page 63: ...lues are shown in the Results window 9 Click All Mkrs Off to turn off the markers when you are finished Make a Gated Measurement Follow this procedure to set up the gates based on the example input us...

Page 64: ...c measurements such as duty cycle and frequency a Click on the left gate in the Measurement window and move it to the left until the rising edge of the pulse is positioned to the right of the left gat...

Page 65: ...the selection of measurements that can be made You can also right click on the gate in the Results window A dashed line will appear if the gate cannot take a measurement or is not set You can compare...

Page 66: ...that the RF input connector on the sensor and the mating connector are clean and undamaged When you first open the High Speed Logger Application a window will appear asking if you would like to initi...

Page 67: ...his button to initialize the instrument When initialization is complete a dialog box will appear stating so Help Click this button to open the online help file for this application It is in a PDF form...

Page 68: ...ication The application also allows you to select the format of the files you save tab or comma delimited Tab delimited works well with spreadsheet applications like Microsoft Excel 54 RF and Microwav...

Page 69: ...t type units and frequency In order to get accurate measurements you will need to set the frequency If CW is selected only the average or continuous wave power is recorded If Peak pulse is selected th...

Page 70: ...nt proceeds The threshold is specified in dBm External TTL Trigger Clicking start causes the application to monitor the external TTL trigger input When a trigger occurs measurement will begin Only the...

Page 71: ...this window with one of the following options Stop button Click the stop button to stop the measurement Time expires Specify the time in milliseconds when the measurement will stop Points measured Sp...

Page 72: ...of points causes a stop in measurement As stated above many factors can negatively impact this rate Again these affects tend to be modest in most cases and pose little concern In addition the resolut...

Page 73: ...he name of the file should include the date and time Troubleshooting Memory Errors This application can generate a large amount of data and can consume significant amounts of memory and disk space Thi...

Page 74: ...High Speed Logger Application 60 RF and Microwave Power Sensors Meters...

Page 75: ...ended averaging 21 F Factory recall 48 Factory setup recall 26 Fall time measurement 43 Filtering poles 40 Frequency 20 36 center the 17 Frequency response 22 Front panel virtual Power Meter 19 Functi...

Page 76: ...Display Control toolbar 44 Reset Max 21 Response 37 Results window 34 Rise time measurement 42 S Safety v Sample code 2 Save 20 Sensor ID 47 Set address 26 48 Set Ref 22 Setup quick 25 Single button...

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