Boonton 4530 Peak Power Meter Service Manual - Manual (Page 6)

BOONTON ELECTRONICS a WIRELESS TELECOM GROUP COMPANY
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5. Set up the 4400/4500 instrument as the source for the pulsed calibrator signal as
follows:
Cal Output On
Set Level: 10.0 dBm.
Max Power: +20.0 dBm.
Cal Mode Pulse
Pulse Source Ext
Polarity +
b. Connect and Calibrate a peak sensor on channel 1:
1. Plug in a 57518 peak power sensor into the 4530 “Sensor 1” connector.
2. From front panel controls, select Zero/Cal > AutoCal. Use the left-arrow key to select
Sensor 1, and press Enter to begin the autocal. The instrument will take about 1.5
minutes to calibrate the sensor.
c. Use the front panel controls to set the following menu items as needed:
Set Main Menu > Measure to “Run”.
Set Main Menu > Chan 1 > MeasMode to “PulseMode”.
Set Main Menu > Chan 1 > Params > dB Offset to 0.00dB.
Set Main Menu > Chan 1 > Params > Frequency to 1.00GHz.
Set Main Menu > Chan 1 > Params > Video BW to “High”.
Set Main Menu > Chan 1 > Display > Vert Span to 100dB.
Set Main Menu > Chan 1 > Display > Vert Cntr to 0dBm.
Set Main Menu > Trig/Time > Time Span to 5ms.
Set Main Menu > Trig/Time > Trig Pos to “Middle”.
Set Main Menu > Trig/Time > TrigDelay to 0ms.
Set Main Menu > Trig/Time > TrigSlope to “Pos (+)”.
Set Main Menu > Trig/Time > TrigMode to “Norm”.
Set Main Menu > Trig/Time > TrigSrce to “External”.
Set Main Menu > Trig/Time > TrigLevel to 0.0 Volts.
d. Press the Graph key. A square wave should be displayed.
e. Press the Graph key again to bring up the Graph Mode Edit Menu, and press the Right Arrow key
until TrigLvl is highlighted.
f. Press the Up key to increase the trigger level until the square wave disappears or stops updating.
Verify that this occurs at a setting of +4.7 +/- 0.2 Volts.
g. Press the Down key to decrease the trigger level until the square wave disappears or stops
updating. Verify that this occurs at a setting of –4.7 +/- 0.2 Volts.
h. Set Main Menu > Trig/Time > TrigSrce to “Snsr 1”.
i. Set Main Menu > Trig/Time > TrigLevel to 0.0 dBm, and press the Graph key again. The
square wave should again be visible and triggering.
j. Increase the frequency setting on the function generator to 100KHz.
k. Press the Right Arrow key until TimeSpn is highlighted in the Graph Mode Edit Menu, then press
the Up key until the Time Span is set to 50usec. A square wave with sharp edge transitions
should be displayed, although the falling edge may decay slowly near the bottom.