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‘Ihble
3-2. Adjustable Components (continued)
Reference
Designator
A6A12R82
A6A12R83
A6A12R84
A6A12R85
A6A12R98
A6A12R113
A7A2C
1
A7A2C2
A7A2C3
A7A2C4
A7A4AlAlCl
A7A4AlAlC5
A8R2
AlOAlL7
A10AlL8
AlOASLll
AlOA3L12
AlOA3L13
AlOA4C50
AlOA4Lll
AlOA4L16
AlOA4L17
AlOA5R2
AlOA5R4
AlOA8R4
AlOA8R9
AlOA8R25
AlOA8R27
Al
lA2R2
Adjustment
Adjustment
Name
Number
E
21
D
21
C
21
B 21
ZERO
21
-9v
21
400 MHz OUT
400 MHz OUT
400 MHz OUT
100 MHz
14
Peaks 400 MHz output signal.
14
Peaks 400 MHz output signal.
14
Peaks 400 MHz output signal.
14
Adjusts VCXO frequency.
FREQ ADJUST
PWR ADJUST
15
Adjusts VCO frequency.
15
Adjusts VCO output level.
+
22V
ADJUST
1
Sets +22 V de supply voltage.
50 kHz NULL
50 kHz NULL
17
Nulls 50 kHz output.
17
Nulls 50 kHz output.
165 MHz NULL
160 MHz NULL
170 MHz NULL
17
Nulls signal at 165
MHz.
17
Nulls signal at 160 MHz.
17
Nulls signal at 170 MHz.
160 MHz PEAK
VCO ADJ
160 MHz PEAK
160 MHz PEAK
17
Peaks 160 MHz output signal.
17
Adjusts
PLL3
VCO frequency.
17
Peaks 160 MHz output signal.
17
Peaks 160 MHz output signal.
150 MHz ADJ
100 MHz ADJ
17
Adjusts VCO TUNE voltage at 150 MHz.
17
Adjusts VCO TUNE voltage at 100 MHz.
.2
MHz
.3
MHz
.5
MHz SCAN
5 MHz SCAN
17
Sets discriminator pretune at 0.2 MHz.
17
Sets discriminator pretune at 0.3 MHz.
17
Adjusts frequency span accuracy
(20130
sweep).
17
Adjusts frequency span accuracy (20/30 sweep).
;ATE
BIAS ADJ
16
Adjusts CIA amplifier gate biasing.
Adjustment Function
Adjusts tracking at 18.6
GHz
(18.6 to 22).
Adjusts tracking at 12.5
GHz
(12.5 to 18.6).
Adjusts tracking at 5.8
GHz
(5.8 to 12.5).
Adjusts tracking at 4
GHz
(2 to 5.8).
Sets SWEEP + TUNE OUT zero indication.
Sets -9 V and
+9
V dc reference supplies.
3-10
Adjustments