Specifications

8 FT-857D Operating Manual
POWER CONNECTIONS
The DC power connector for the FT-857D must only be connected to a DC source provid-
ing 13.8 Volts DC (±15%), and capable of at least 22 Amperes of current. Always observe
proper polarity when making DC connections:
The Red DC power lead connects to the Positive (+) DC terminal; and the Black DC
power lead connects to the Negative (–) DC terminal.
In mobile installations, noise pickup may be minimized by connecting the DC cable di-
rectly to your vehicle’s battery, rather than to the ignition switch or “accessory” circuitry.
Direct connection to the battery also provides the best voltage stability.
INSTALLATION
12V Battery
Cigarette Lighter Plug
Fuse Box
FUSE: 25A
Supplied DC Cable
RED
BLACK
T
o
H
F
/
5
0
M
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z
A
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e
n
n
a
T
o
1
4
4
M
H
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/
4
3
0
M
H
z
A
n
t
e
n
n
a
Supplied DC Cable
T
o
H
F
/
5
0
M
H
z
A
n
t
e
n
n
a
T
o
1
4
4
M
H
z
/
4
3
0
M
H
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A
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a
VA
005510 2015 3020 40
CONTIN UOUS CURRENT 25A
OVERLOAD
POWE R
ON
OFF
FP-1030A
RED BLACK
FUSE: 25A