Yaesu FT-101EX User Manual

INSTALLATION
The transceiver is designed to provide a complete
single unit installation for fixed, portable, or mobile
operation. Two prewired plugs are furnished with
the unit for AC or DC operation. This system
provides the flexibility required for various installa-
tions and allows rapid change from fixed to mobile
operation.
Base Station Installation ;
The
transceiver
is
designed
for
use
in
many
areas
of
the
world
using
supply
voltages
that
may
differ
from
the
operators
local
supply
voltage.
Therefore,
before
connecting
the
AC
cord
to
the
power
outlet,
be
sure
that
the
voltage
marked
on
the
rear
of
the
transceiver
agrees
with
the
local
AC
supply
voltage.
CAUTION
Permanent damage will result if improper
AC supply voltage is applied to the trans-
ceiver.
The transceiver should be connected to a good ground.
The ground lead should be connected to the terminal
marked GND located on the rear panel of the trans-
ceiver.
Mobile Installation ;
The transceiver will operate satisfactorily from any 12
volt negative-ground battery source by connecting
the DC power cord to the rear panel receptacle.
For
under-dash
mounting,
a
special
mounting
bracket
is available from your dealer. A location should be
selected
clear
of
heater
ducts.
No
special
mounting
pre-
cautions need be observed if adequate ventilation space
is available. A minimum of two inches of air space
above the cabinet top and on all sides is recommended
to allow proper air flow around the cabinet. Never
stack other units above or below the cabinet since the
accumulated heat from both units could cause perma-
nent damage.
The transceiver requires an average of 14 amps on
transmit and 20 amps on voice peaks. The fuse in the
DC power cable should be rated at 20 amps. When
making connections to the car battery, be certain that
the RED lead is connected to the positive (+) terminal
and the BLACK lead to the negative (—) terminal of
the battery. Reversed connections could permanently
damage the transceiver. The BLACK lead should run
directly to the negative terminal of the battery. Using
the car frame as a negative connection or connecting
the positive lead at a point such as the ignition switch
places the devices creating noise in the same current
path as the transceiver and fails to take advantage
of the filtering action of the battery. The power cable
should be kept away from ignition wires and be as
short as possible to minimize voltage drop and to
provide a low impedance path from the transceiver to
the battery.
Prior to operating the transceiver in a mobile installa-
tion, the voltage regulator setting should be checked.
In many vehicles, the voltage regulations is very poor
and in some cases, the regulator may be adjusted for
an excessively high charging voltage. As the battery
and regulator age. the maximum voltage while charg-
ing can increase to a very high level which is in-
jurious to the battery and could cause damage to the
transceiver.
The transceiver is designed to operate from a source
voltage range of 11 to 14 -volts. It is necessary to
carefully set the regulator so that the highest charg-
ing voltage does not exceed 14 volts. The transceiver
should be switched “OFF” when vehicle is. started
to prevent voltage transcients from damaging power
supply transistors.
Antenna ;
CAUTION
Never transmit without having proper
antenna or dummy load connected to
the transceiver
The transceiver is designed for use with resonant anten-
na having an impedance 50-75 ohm resistive load.
The antenna is usually the most critical part of a
station installation. Results both in receiving and trans-
mitting will depend on how well the antenna is installed
and adjusted. Any of the common antenna systems
designed for use on the high frequency amateur bands
may be used with the transceiver, provided the input
impedance of the antenna system is within the capa-
bility of the transceiver pi-matching network (50-75
ohms).
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Yaesu FT-101EX Specifications

General

Brand	Yaesu
Model	FT-101EX
Category	Transceiver
Language	English