HP 8560E Service Manual page 97

Adjustment Procedures
9. Tracking Generator Power Level Adjustments (Option 002)
4. On the HP 8560E/EC, press
,
GENRATOR SRC PWR ON
5. On the HP 8560E/EC, press
the PEAKING message to disappear.
6. Zero and calibrate the measuring receiver/power sensor combination
in log mode (power levels readout in dBm). Enter the power sensor
300 MHz Cal Factor into the measuring receiver.
7. Disconnect the Type N cable from the RF OUT 50Ω and connect the
power sensor to the RF OUT 50Ω.
8. On the HP 8560E/EC, press 0,
9. Adjust A10R13 −10 dB ADJ for a 0 dBm ±0.05 dB reading on the
measuring receiver.
10.Set the TRK GEN RF POWER to −10 dBm. Note the power
displayed on the measuring receiver.
11.Proceed with steps 12 through 14 only if the power level noted in the
previous step was outside the range of −10 dBm ±0.23 dB.
12.With the TRK GEN RF POWER set to −10 dBm, adjust A10R13 −10
dB ADJ for a −10 dBm ±0.1 dB reading on the measuring receiver.
Refer to Figure 2-14 on page 95
13.Set the TRK GEN RF POWER to 0 dBm. Adjust A10R18 0 dB ADJ
for a 0 dBm ±0.2 dB reading on the measuring receiver. Refer to
Figure 2-14 on page 95
Sampling Adjustments
Power at −10 dBm Setting ____________________ dBm
14.Repeat steps 12 and 13 until the output power level is within the
tolerances indicated at both the −10 dBm and 0 dBm TRK GEN RF
POWER settings. Adjust −10 dB ADJ only with the TRK GEN RF
POWER set to −10 dBm and adjust 0 dB ADJ only with the TRK
GEN RF POWER set to 0 dBm.
96
, ,
MKR AUX CTRL
, 0, and .
dBm
,
MORE 1 OF 3 TRACKING PEAK
, and
dBm SGL SWP
for adjustment location.
for adjustment location.
TRACKING
. Wait for
.
Chapter 2