Page 13
FT-450 O
PERATION
M
ANUAL
I
NSTALLATION
VL-1000 L
INEAR
A
MPLIFIER
I
NTERCONNECTION
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CAT
LINEAR
TUNER
DATA
ANT 1
ANT 2
ANT 3
ANT 4
REMOTE
ON
OFF
BAND DATA 1
BAND DATA 2
GND
ALC 2
ALC 1
PTT 2
PTT 1
INPUT 1
INPUT 2
CONTROL
DC48V IN
A
N
T
IN
P
U
T
D
C
1
3.
8
V
A
N
T
1
H
F
Ve
rt
ic
al
A
nt
en
na
H
F
D
ip
ol
e
A
nt
en
na
H
F
B
ea
m
A
nt
en
na
A
N
T
2
A
N
T
3
IN
P
U
T
1
LI
N
E
A
R
B
A
N
D
-D
AT
A
2
G
N
D
G
N
D
D
C
4
8V
IN
C
O
N
TR
O
L
A
LC
2
CT-118 CONNECTION CABLE
(Option)
ANTENNA CABLE (Not Supplied)
V
P
-1
00
0
V
P
-1
00
0
E
E
RY
ALC
AC
FUSE
GND
RF IN
RF OUT
A
N
T
1
A
N
T
1
H
F
A
nt
en
na
IN
P
U
T
1
G
N
D
G
N
D
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CAT
LINEAR
TUNER
DATA
IN
P
U
T
D
C
1
3.
8
V
EXT ALC IN
GND
TX GND OUT
I
NTERFACING
TO
O
THER
L
INEAR
A
MPLIFIER
Be sure that both the
FT-450
and
VL-1000
are turned off, then follow the installation recommendations con-
tained in the illustration.
Note:
Ì
Please refer to the
VL-1000
Operating Manual for details regarding amplifier operation.
Ì
Please do not attempt to connect or disconnect coaxial cables when your hands are wet.
To link the
FT-450
and
VL-
1000
Power switches, set
the VL-1000 REMOTE
switch to the “ON” position.
The T/R control line is a transistor “open collector” circuit, capable of handling positive amplifier relay coil volt-
ages of up to +50V DC and current of up to 400 mA. If you plan on using multiple linear amplifiers for different
bands, you must provide external band-switching of the “Lin Tx” relay control line from the “
TX GND OUT
” line
at the
LINEAR
jack.
Important Note!
Do not exceed the maximum volt-
age or current ratings for the “
TX
GND OUT
” line at the
LINEAR
jack.
This line is not compatible with
negative DC voltages, nor AC volt-
ages of any magnitude.
Most amplifier control relay systems
require only low DC voltage/current
switching capability (typically, +12V
DC at 25 ~ 75 mA), and the switch-
ing transistor in the
FT-450
will eas-
ily accommodate such amplifiers.
