Agilent Technologies 8564EC Service Manual page 126

6. If all conversion loss values equal 30 dB, skip to step 7, otherwise
7. Press
Table 3-10 Conversion Loss Data
Frequency (GHz)
18
20
22
24
26
27
8. Connect the 8481D to the 11708A attenuator already connected to
9. Adjust the 8340A/B
10.On the spectrum analyzer, press
11.Wait until the message ADJUSTMENT DONE appears in the active
12.Disconnect the SMA cable from the power-sensor/adapter and
13.Use the spectrum analyzer front panel knob, step keys, or keypad to
14.Press
Chapter 3
continue to step a.
a. Refer to Table 3-10 on page 149
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.
INSTR PRESET
CW frequency ....................................................... 310.7 MHz
Power level ............................................................... −30 dBm
the 8902A RF power connector. Zero and calibrate the 8902A/8481D
combination in log mode. Enter the power sensor 50 MHz cal factor
into the 8902A. Connect the power sensor, through an adapter, to the
SMA cable.
POWER LEVEL
8902A reads −30 dBm ±0.05 dB.
, , then
DATA 3RD IF AMP
function block and press
connect the cable to the spectrum analyzer IF INPUT.
change the amplitude of the displayed signal until the marker reads
0 dBm ±0.17 dB.
,
PREV MENU STORE DATA
11 . External Mixer Amplitude Adjustment
and press
on the 8340A/B and set the controls as follows:
Conversion Loss (dB) (≠30 dB)
until the power displayed on the
,
CAL MORE 1 OF 2
CAL 3RD AMP GAIN
EXT MXR REF CAL
, and on the spectrum analyzer.
YES
Manual Adjustment Procedures
⇓ ⇓
or to select a
,
SERVICE CAL
.
.
149