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Reference
Adjustment
Designator
Name
SYM
LC CTR
CTR
SYM
LC DIP
LC DIP
SYM
LC CTR
CTR
CTR
XTAL
FREQ ZERO
COARSE
+ 1OV ADJ
CAL
VR
18.4 MHz NULL
WIDE GAIN
SYM
CTR
PK
SYM
CTR
PK
SYM
CTR
PK
SYM
CTR
PK
SYM
Adjustment
Number
8
Centers A4A4 bandwidth filter crystal pole #l
symmetry.
8
Centers A4A4 bandwidth filter LC pole #l.
8
Centers A4A4 bandwidth filter crystal pole #l.
8
Adjusts A4A4 bandwidth filter crystal pole #2
symmetry.
8
Dips A4A4 bandwidth filter LC pole #l.
8
Dips A4A4 bandwidth filter LC pole #2.
Adjusts A4A4 bandwidth filter crystal pole #3
8
symmetry.
Centers A4A4 bandwidth filter LC pole #2.
8
8
Centers A4A4 bandwidth filter crystal pole #3.
8
Centers A4A4 bandwidth filter crystal pole #2.
Adjusts LC filter amplitudes.
8
8
Adjusts crystal filter amplitudes.
10
Coarse-adjusts 18.4 MHz Local Oscillator to set
adjustment range of front-panel FREQ ZERO
control.
10
Adjusts + 1OV temperature compensation supply.
10
Adjusts 10 dB step gain.
10
Adjusts IF gain.
10
Adjusts first 20 dB step gain.
10
Adjusts variable step gain.
10
Adjusts second 20 dB step gain.
10
Nulls 18.4 MHz local oscillator signal.
11
Adjusts gain of down/up converter.
7
Adjusts 3 MHz bandwidth filter pole #l symmetry.
Centers 3 MHz bandwidth filter pole #l.
7
7
Peaks 3 MHz bandwidth filter pole #2.
Adjusts 3 MHz bandwidth filter pole #2 symmetry.
7
7
Centers 3 MHz bandwidth filter pole #2.
7
Peaks 3 MHz bandwidth filter pole #3.
Adjusts 3 MHz bandwidth filter pole #3 symmetry.
7
7
Centers 3 MHz bandwidth filter pole #3.
Peaks 3 MHz bandwidth filter pole #4.
7
7
Adjusts 3 MHz bandwidth filter pole #4 symmetry.
7
Centers 3 MHz bandwidth filter pole #4.
7
Peaks 3 MHz bandwidth filter pole #5.
Adjusts 3 MHz bandwidth filter pole #5 symmetry.
7
Adjustment Function
Adjustments 3-7
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