TITLE:
DATE:
DWG No.:
BOARD No.:
DWN BY:
APRVD:
DWG REV DATE:
REVISED BY:
REV:
DANIELS
ELECTRONICS LTD
TM
VICTORIA BC.
DANIELS
ELECTRONICS LTD
TM
6-7
6.9
Enhanced Front End Schematic Diagram
- Extra Wideband
VHF Enhanced
Extra
Wideband Receiver Instruction Manual IM10-VR3H040-AB
24 APR 03
AB-S-01-01-1
BRAD KOSIANCE
19 MAR 97
VR-3H040 ENHANCED VHF FRONT END BOARD SCHEMATIC DIAGRAM
-EXTRA WB
50041-01
L6 - L8
C15-C18
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JU3
Q2
R16
M1
L12
C37
01
WHOEVER
HIGHEST REFERENCE DESIGNATORS
UNUSED REFERENCE DESIGNATORS
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BAND PASS FILTER
-5 dBm
L.O. INPUT
+5 dBm
HIGH PASS FILTER - NOT INSTALLED
LOW PASS FILTER
B
A
MIXER
RF AMPLIFIER
IMAGE REJECTION FILTER
R.F. INPUT
I.F. OUTPUT
+9.5 VDC
+9.5 VDC
10.0µH
L1
10.0µH
L9
1
2
1
2
R10
SEL
SEL
R12
SEL
R11
100nF
C20
4.7µF
C19
4.7µF
C1
100nF
C2
1K00
R1
30R1
R3
E
B
C
NE46134
Q2
3K01
R4
C4
100nF
C6
1.0nF
E
B
C
Q1
BC807-25
1
2
4R75
R6
2.2µH
L2
C15
C16
C17
C18
L6
L7
L8
L3
220nH
L4
270nH
49R9
R7
JU1
JU2
JU3
C3
10nF
10nF
C5
10nF
C7
10nF
C8
10nF
C9
10nF
C10
10nF
C21
R2
332R0
C11
47pF
C14
47pF
C12
100pF
C13
100pF
150nH
L10
180nH
L11
82pF
C35
82pF
C36
39pF
C34
R13
121R
100nF
C33
100nF
C32
100nF
C28
100nF
C31
100nF
C29
100nF
C30
100nF
C26
100nF
C27
R16
49R9
47pF
C22
47pF
C23
220pF
C24
220pF
C25
VP
VP
VN
VN
IFN
AN
GND
RFP
RFN
VN
LOP
GND
BIA
OUT
VFB
COM
AP
IFP
LON
VP
1
2
3
4
5
6
7
8
9
10 11 12 13
14
15
16
17
18
19
20
M1
AD831
R8
5K11
R9
5K11
BP1
39pF
C37
150nH
L12
220nH
L5
R14
49R9
121R
R15
R5
1K82