Yaesu FT-847, Руководство по эксплуатации

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6
FT-847 O
PERATING
M
ANUAL
P
OWER
C
ONNECTIONS
Installation
The DC power connector for the FT-847 must only be
connected to a DC source providing 13.8 Volts DC
(±10%), and capable of at least 22 Amperes of cur-
rent. Always observe proper polarity when making DC
connections:
The R
ED
DC power lead connects to the P
OSITIVE
(+) DC terminal; and
The B
LACK
DC power lead connects to the N
EGA
-
TIVE
(-) DC terminal.
For base station installations, Yaesu recommends the
use of the FP-1025 or FP-1030A AC power supplies.
Other models of power supplies may be used with the
FT-847, but the 13.8V DC input voltage, 22-Ampere
current capability, and DC cable polarity guidelines
described above must be strictly followed.
Note that other manufacturers may use the same type
of DC power connections as does your FT-847 trans-
ceiver, but the wiring configuration of the other
manufacturer’s plug may be different from that speci-
fied for your transceiver. Serious damage can be caused
if improper DC connections are made; consult with a
qualified service technician when in doubt.
In mobile installations, noise pickup may be minimized
by connecting the DC cable directly to your vehicle’s
battery, rather than to the ignition switch or “acces-
sory” circuitry. Direct connection to the battery also
provides the best voltage stability.