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A
+13.8Vdc
2
3
4
5
B
ON/OFF
+12V SOURCE
+BR
"
~
v
Q
~
~
"'
Q
NOTES:
1) AUXILARY SPLIT IS SHOWN AS -2MHz.
IT CAN BE PROGRAMMED fOR ANY VALUE.
100K
RECV
-RPT
+RPT
SEE NOTE 1
6
2) USE A DIODE TO JUMPER FROM THE
RAMSEY ELECTRONICS INC.
CHANNEL LINE TO THE AUX SPLIT POINT
793 CANNING PKWY
FOR EACH CHANNEL THAT USES THE AUX SPLIT.
VICTOR NY 14564-8924
U.S.A.
3) FOR AUX, SPLIT DO NOT INSTALL
Alf(
DIODES IN THE
SIMP.
OR RPT POSITIONS.
+sv SOURCE
+5V
+sv SOURCE
+BY
+BV
00
00
N
~
~
;t
~
m
SEE NOTE. 2
AUX SPLIT
PHONE
(716) 924-4560
FAX
(716) 924-4555
4) C49, 05,
R26, R27, R28, R29 AND R32 ARE NOT USED ON THIS REVISION.
A
B
"
c
D
E
~
+
~
~
ffi
l21
+8V
~
~
G
N
R23
I"
100
+8 VOLT
TRA.'ISMIT
SOURCE
F
G
H
PACKET
FSK
, - - - - - - - - - - - . , - - - - - 1 - - + R J l
-;;=.
2~~~~ROPHONE
,;---- EXT PTT
- - EXT SPEAKER
~-+12V
+12V
COR
-r:___.
+8T
+12V
-r:___.
+BR
+BT
-r:___.
+BR
~GND
MICROPHONE AMP
228256
~------------~<·"
VOLUME
+BV
+12V
CB3
.001
m
<J
+BV
~
+5V
L _ _
_ , _ _ - _ , ·
~ ~~
470UF
+
~
SQUELCH
C34
~~
SPEAKER
R57
2.2K
R60
MICROPHONE
-t-t--r--r--T-lr--r---i-t-r-t--+-+-t-+-r+-+-+-~~~""u
S2
TRANSMIT
LED
443.60 +RPT
446.00 SIMP
100K
19 PLACES
!;
~
ill
v
N
v
v
N
m
00
J,
~
~
~
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:;:
m
I
+
:;i
§
c
D
E
-f)y
NOTE: ONLY SIX OF THE TWELVE
SWllCH POSITIONS ARE SHOWN HERE
F
G
RAMSEY ELECTRONICS INC.
Title
70cm
FM TRANSCEIVER
Size
Number
Rev
D
FX-440
1.2
Dote
02120192
Drown b
TRH
Filename
FX440.S01
Sheet
of
1
H
2
3
4
5
6
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