HP 8340B Manual page 184

5.
On the DUT, press
[INSTR PRESET] [CW] [1] [0] [MHz] [RF] OFF.
6.
Zero
the power meter.
7.
On the
DUT, press
the [RF] key ON, then press [POWER LEVEL].
8.
Using the front panel rotary knob, adjust the DUT's
output
power
for
a 1.0
milliwatt indication
on
the
power meter.
9.
Disconnect the HP 8481A power sensor
from the DUT.
Turn the power meter's line switch
OFF.
10.
Replace the HP 8481A with the HP 8485A power sensor. Turn the power meter's
line switch back
on and allow 15
minutes for the sensor to stabilize.
11.
Zero
and calibrate the power meter.
12.
On the
DUT, press
[RF] OFF
and connect the
HP 8485A
power sensor to the DUT.
13.
Zero
the
power
meter, then press the DUT's
[RF]
ON.
14.
Adjust the power meter's calibration
factor
dial
for
a
power meter indication of 1.0 milliwatt.
The power
meter calibration factor setting is the cal factor
% that you should enter for the
HP8485A's 10
MHz data
point.
Attenuator Calibration and Operation Verification Test Software Running the Cal Utilities
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