Power Connections - Yaesu FT-100D Operating Manual

Installation
POWER CONNECTIONS
The DC power connector for the FT -100 must only be connected to a DC source providing
13.8 Volts DC (±IO%), 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.
For base station installations, Yaesu recommends the use of the FP-I 023, FP-I 025, or FP-
1 030A AC power supplies. Other models of power supplies may be used with the FT -100,
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-IOO transceiver, but the wiring configuration of the other manufacturer's plug may be
different from that specified 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 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.
Tips for Successful Mobile Installations:
o
Before connecting the DC cable to the battery, measure the voltage across the battery
terminals with the engine running fast enough to show a charge. If the voltage is above
15 Volts, the vehicle's voltage regulator should be adjusted to reduce the charging
voltage to 14 Volts or lower.
o
Route the DC cable as far away from the ignition cables as possible.
o
If the DC cable is not long enough, use #12 AWG (minimum) stranded, insulated wire
to extend it. Be certain to solder the connections at the splice securely, and provide
ample insulation for the soldered splice (heat shrink tubing plus black electrical tape
work well).
o
Check the battery terminal connections frequently to be sure they are tight and not
corroded.
, - - - - - - - - - - - - - - - Caution - - - - - - - - - - - - - - - ,
Permanent damage can result if improper supply voltage, or reverse-polarity volt-
age, is applied to the FT-IOO. The Limited Warranty on this transceiver does not
cover damage caused by application of AC voltage, reversed polarity DC, or DC
voltage outside the specified range of 13 .8V ± I 0%. Never attempt to connect the
FT-JOO to a 24 Volt battery system.
8
When replacing fuses, be certain to use a fuse of the proper rating. The FT -100
requires a 25A fast-blow fuse.
FT-IOO
MICRO MOBILE OPERATING MANUAL