Filter
Top Products
‘able
3-2. Adjustable Components (continued)
Reference
Designator
A4A4C9
Adjustment
Name
SYM
Adjustment
Number
8
Adjustment Function
A4A4C19
LC CTR
8
A4A4C20
CTR
8
A4A4C39
SYM 8
A4A4C4
1
LC DIP
8
A4A4C43
LC DIP
8
A4A4C65
SYM
8
Centers
A4A4
bandwidth filter crystal pole
#l
symmetry.
Centers
A4A4
bandwidth filter LC pole
#l.
Centers
A4A4
bandwidth filter crystal pole
#l.
Adjusts
A4A4
bandwidth filter crystal pole
#2
symmetry.
Dips
A4A4
bandwidth filter LC pole
#l.
Dips
A4A4
bandwidth filter LC pole
#2.
Adjusts
A4A4
bandwidth filter crystal pole
#3
symmetry.
A4A4C67 LC CTR
8
Centers
A4A4
bandwidth filter LC pole
#2.
A4A4C73
CTR
8
Centers
A4A4
bandwidth filter crystal pole
#3.
A4A4C74
CTR
8
Centers
A4A4
bandwidth filter crystal pole
#2.
A4A4R43
LC
8
Adjusts LC filter amplitudes.
A4A4R49
XTAL
8
Adjusts crystal filter amplitudes.
A4A5ClO FREQ ZERO
COARSE
10
10
10
10
10
10
10
10
11
7
7
7
7
7
7
7
7
7
7
7
7
7
Coarse-adjusts 18.4 MHz Local Oscillator to set
adjustment range of front-panel FREQ ZERO
control.
A4A5R2
A4A5R32
A4A5R33
A4A5R44
A4A5R5
1
A4A5R54
+
1OV
ADJ
SGlO
CAL
SG20- 1
VR
SG20-2
Adjusts +
1OV
temperature compensation supply.
Adjusts 10
dB
step gain.
Adjusts IF gain.
Adjusts first 20
dB
step gain.
Adjusts variable step gain.
Adjusts second 20
dB
step gain.
A4A6AlC31
A4A6A
lR29
18.4 MHz NULL
WIDE GAIN
Nulls 18.4 MHz local oscillator signal.
Adjusts gain of down/up converter.
A4A7C6
A4A7C7
A4A7C13
A4A7C14
A4A7C15
A4A7C22
A4A7C23
A4A7C24
A4A7C3
1
A4A7C32
A4A7C33
A4A7C40
A4A7C41
SYM
CTR
PK
SYM
CTR
PK
SYM
CTR
PK
SYM
CTR
PK
SYM
Adjusts 3 MHz bandwidth filter pole
#l
symmetry.
Centers 3 MHz bandwidth filter pole
#l.
Peaks 3 MHz bandwidth filter pole
#2.
Adjusts 3 MHz bandwidth filter pole
#2
symmetry.
Centers 3 MHz bandwidth filter pole
#2.
Peaks 3 MHz bandwidth filter pole
#3.
Adjusts 3 MHz bandwidth filter pole
#3
symmetry.
Centers 3 MHz bandwidth filter pole
#3.
Peaks 3 MHz bandwidth filter pole
#4.
Adjusts 3 MHz bandwidth filter pole
#4
symmetry.
Centers 3 MHz bandwidth filter pole
#4.
Peaks 3 MHz bandwidth filter pole
#5.
Adjusts 3 MHz bandwidth filter pole
#5
symmetry.
Adjustments 3-7