PRESS-TO-TALK MICROPHONE
The receiver and transmitter are controlled by the press-to-talk switch on the
microphone. Press the switch and the transmitter is activated, release switch to
receive. When transmitting, hold the microphone two inches from the mouth and
speak clearly in a normal “voice”. The radios come complete with low-impedance
(500 ohm) dynamic microphone. For installation instruction on other microphones,
see next section, “ALTERNATE MICROPHONES AND INSTALLATION”.
OPERATING PROCEDURE TO RECEIVE
1. Be sure that power source, microphone and antenna are connected to the
proper connectors before going to the next step.
2. Turn unit on by tuning
VOL
control clockwise on your transceiver.
3. Set
the
VOLUME
for a comfortable listening level.
4. Set
the
MODE
switch to the desire mode.
5. Listen to the background noise from the speaker. Turn the
SQUELCH
control
slowly clockwise until the noise
JUST
disappears (no signal should be
present). Leave the control at this setting. The
SQUELCH
is now properly
adjusted. The receive will remain quiet until a signal is actually received. Do
not advance the control too far, or some of the weaker signals will not be
heard.
6. Set
CHANNEL
selector switch to the desired channel.
7. Set
the
RF
gain control fully clockwise for maximum
RF
gain.
OPERATING PROCEDURE TO TRANSMIT
1. Select the desired channel of transmission.
2. Set
the
MIC GAIN
control fully clockwise.
3. If the channel is clear, depress the push-to-talk switch on the microphone and
speak in a normal voice.
Installation
LOCATION
Plan the location of the transceiver and microphone bracket before starting the
installation. Select a location that is convenient for operation and does not interfere
with the driver or passengers in the vehicles. In automobiles, the transceiver is
usually mounted below the dash panel, with the microphone bracket beside it.
MOUNTING THE CONNECTION
Your transceiver is supplied with a universal mounting bracket. When
mounting the bracket and radio to your car, make sure it is mechanically strong.
Also provide a good electrical connection to the chassis of the vehicle. Proceed as
follows to mount the transceiver:
1. After you have determined the most convenient location in your vehicle, hold
the transceiver with mounting bracket in the exact location desired. If nothing
will interfere with mounting it in the desired position, remove the mounting
bolts. Before drilling the holes, make sure nothing will interfere with the
installation of the mounting bolts.
2. Connect the antenna cable plug to the standard receptacle on the rear panel.
Most antennas are terminated with a type PL-259 plug and mate with the
receptacle.
3. Connect the red DC power input wire (with the fuse) to +13.8V DC. This wire
extends from the rear panel. In automatic installation, +13.8V DC is usually
obtained from the accessory contact on the ignition switch. This prevents the
set being left on accidentally when the driver leaves the car and also permits
operating the unit without the engine running. Locate the accessory contact on
most ignition switches by tracing the power wire from the AM broadcast
receiver in the car.
4. Connect the black lead to –13.8V DC. This is usually the chassis of the car.
Any convenient location with good electrical contact (remove paint) may be
used.
5. Mount the microphone bracket on the right side of the transceiver or near the
transceiver, using two screws supplied. When mounting in an automobile,
place the bracket under the dash so the microphone is readily accessible.
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