Conversion Loss Data - HP 8562E Service Manual

8. Connect the HP 8481D to the HP 11708A attenuator already connected to the HP 8902A
RF power connector. Zero and calibrate the HP 8902A/HP 8481D combination in log
mode. Enter the power sensor 50 MHz cal factor into the HP 8902A. Connect the power
sensor, through an adapter, to the SMA cable.
9. Adjust the HP 8340A/B
-30 dBm f0.05 dB.
10.
then CAL
11.
Wait until the message
EXT MXR REF CAL .
12. Disconnect the SMA cable from the power-sensor/adapter and connect the cable to the
spectrum analyzer IF INPUT.
13. Use the spectrum analyzer front-panel knob, step keys, or keypad to change the amplitude
of the displayed signal until the marker reads 0 dBm f0.17 dB.
14. Press
15. Place the WR PROT/ WR ENA jumper on the A2 controller assembly in the WR PROT
position.
The following steps should only be performed if you need to replace the 30 dB
conversion loss values to those recorded in Table 2-12.
16. Press (mCTRL), EXTERNAL MIXER, AMPTD CORRECT, then CNV LOSS VS FREQ on the
spectrum analyzer.
17. Press a or a to select frequencies where the conversion loss value was recorded in
Table 2- 12.
18. Use the spectrum analyzer front panel keys to enter the conversion loss values recorded for
the frequency.
15. External Mixer Amplitude Adjustment (Non-Option 327)
Table 2-12. Conversion Loss Data
Frequency (GHz)
18
20
22
24
26
27
until the power displayed on the HP 8902A reads
( )
POWER LEVEL
MORE
[CAL),
ADJUSTMENT DONE
and y%S on the spectrum analyzer.
Conversion Loss (dB) (230 dB)
appears in the active function block and press
Adjustment Procedures 2-59