Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 160

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Table 4-3. WJ-8718-19/FE HF Receiver Checkout Procedure.
Step
1. Prelimi
nary
2. Power
Supply
3. IF Gain
Test
Equipment
Fluke 8100A
HP8640B
Boonton 92B
Control Settings and
Instructions
a. After power-up in
Par. 4.3.3, perform
BITE tests (refer to
paragraph 2.4.7.2).
b. Exercise all front
controls and observe
that all displays and
indicators respond
properly.
a. Measure Power
Supply Test Points
listed below:
b. El.
c. E2.
d. E3.
e. C8 (feedthru)
a. Set Sig. Gen. to
15.00500 MHz, -97dBm,
Set RF Voltmeter to
-10 dBm range.
b. Adjust receiver RF
Gain for -15 dBm on
RF Voltmeter.
c. Select 50 kHz,
6 kHz, 3.2 kHz, 1.0 kHz
and 0.3 kHz BiV's.
Read RF V.M. level
at each B.W.
d. Increase Sig. Gen
to 15.00650 MHz.
Select USB Mode.
Read RF V.M. level.
Normal
Indication
+15 Vdc
+/- 0.75
-15 Vdc
+/- 0.75
+10 Vdc
(minimum)
+22 Vdc
(minimum)
-15 dBm
-15 dBm
+/- 4 dBm
-15 dBm
+/- 4 dBm
IF Indication
is Abnormal
Refer to Table
4-4, Steps la,
lb.
Refer to Table
4-4, Steps lc,
Id, le.
Refer to Table-
4-4, step 2a
Refer to Table
4-4, step 2b
Refer to Table
4-4, step 2c
Refer to Table
4-4, step 2d.
Refer to Table
4-4, step 3a,
3b, 3c
Refer to Table
4-4, step 3a,
3b, 3c
Refer to Table
4-4, step 3d
4-7