HP 8562E Service Manual page 98

15. External Mixer Amplitude Adjustment (Non-Option 327)
Synthesized sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8340A/B
Measuring receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8902A
Power sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8481D
50 MHz reference attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 11708A
(supplied with HP 8481D)
Adapters
Type N (f) to SMA (f) . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1772
Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1476
Type APC 3.5 (f) to APC 3.5 (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5061-5311
Cables
1.
Press LuNE) to turn the spectrum analyzer off and disconnect the power cord. Remove the
spectrum analyzer cover and reconnect the power cord.
2.
Set up the equipment as illustrated in Figure 2-24. Do not connect the SMA cable to the
spectrum analyzer.
Move the WR PROT/WR ENA jumper on the A2 controller assembly to the WR ENA
3.
position. The jumper is on the edge of the A2 board assembly and can be moved without
folding the board down.
Press [LINE) to turn the spectrum analyzer on. On the spectrum analyzer, press c-1,
4.
EXT MXR PRE UEFR , (UNPR), (mCTRL), EXTERNAL MIXER , BMPTD CORRECT , then
CNV LDSS VS FREq .
5. Press @ or a to display the conversion loss value for each frequency listed in Table 2-12.
Record any conversion loss reading
frequency.
If all conversion loss values equal 30 dB, skip to step 7, otherwise continue to step a.
6.
a. Refer to Table 2-12 and press m or a to select a frequency at which the conversion
loss value does not equal 30 dB.
b. Use the spectrum analyzer front-panel keys to set the conversion loss value to 30 dB.
c. Repeat steps a and b for all frequencies having a conversion loss value other than
30 dB.
Press
7.
PRESET
Power level . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 dBm
2-58 Adjustment Procedures
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...8120-1578
not
on the HP 8340A/B and set the controls as follows:
)
equal to 30 dB in Table 2-12 at the appropriate