Boonton 4500B Peak Power Meter - Manual (Page 340)

Boonton 4500B RF Peak Power Analyzer
Maintenance 7-8
Pulse Mode. To verify sensor linearity in the pulse measurement mode, proceed as follows:
1. Connect the peak power sensor cable to Channel 1 of the Model 4500B.
2. Connect the peak power sensor to the Model 4500B calibrator output.
3. Press the Init system key to reset the Model 4500B settings to their default states.
4. Autocalibrate the sensor by selecting Chan # > Calibration > AutoCal > START.
5. When the Autocal procedure is complete, set the calibrator output mode to CW by selecting
Calibrator > Cal Mode > CW.
6. Enable the calibrator output by selecting Calibrator > Cal > Output > On.
7. Set the timebase to 100 ms by selecting Time > Timebase > 100 ms/Div.
8. Set Markers to CH 1 by pressing Mark > Extensions > MK 1 > CH 1.
9. Set Marker 1 to -400 ms by selecting Mark > Marker 1 > 400 ms.
10. Set Marker 2 to 400 ms by selecting Mark > Marker 2 > 400 ms.
11. Set the Delta Marker mode to Average by selecting Mark > Extensions > Delta > Marker
Avg.
12. Select one of the sensor data tables (Tables 7-5 through 7-7) according to the sensor type
being tested.
13. Set the calibrator to the levels listed in the selected table by pressing Calibrator > Set Level
and record the AVG readout values in the table.
14. If CH 2 is installed, connect the peak power sensor cable to CH2 of the Model 4500B.
15. Turn on CH 2 by pressing Chan > Select CH > Channel > On.
16. Repeat steps 4 - 13, substituting CH 2 for CH 1.
Modulated Mode (CW). To verify sensor linearity for the Modulated measurement mode,
proceed as follows:
1. Perform Steps 1 through 8 of the Pulse Mode verification procedure.
2. Select Modulated measurement mode by pressing Measure > Modulated in the top level
menu.
3. Set Marker 1 to Channel 1 at 0 ms by selecting Mark > Extensions > MK 1 > CH 1 and Mark
> Marker 1 > 0 ms.