This knob adjusts the receiver volume.
10
CHANNEL
Selector Knob
This knob select the operating channel.
11
Programmable Function Button
The default function is set as
MONI
Button.
12
Programmable Function Button
The default function is set as
Low Power
Button.
13
Programmable Function Button
The default function is set as no function Button.
14
Programmable Function Button
The default function is set as
no function Button.
Rear
15 16 18
18
15
Antenna Socket
The 50-ohm coaxial feedline to the antenna must be
connected here using a type-M (PL-259) plug.
16
EXT SP (External Speaker)
An external loudspeaker may be connected to this 2-
contact, 3.5-mm mini-phone jack.
Caution: Do not connect this line to ground, and be
certain that the speaker has adequate capability to
handle the audio output from the radio.
17
13.8V DC Cable w/Connector
The supplied DC power cable must be connected to this
2-pin connector. Use only the supplied fused cable,
extended if necessary, for power connection.
18
DSUB 25-Pin Accessory Connector
External TX audio line input, PTT, Squelch, and external
RX audio line output signal may be obtained from this
connector for use with accessories such as data
transmission/reception modems, ets.
Side
19
19
Microphone Jack
Connect the microphone plug to this jack.
Basic Operation of the Transceiver
Important! –Before turning on the radio the first time,
confirm that the power connections have been made
correctly and that a proper antenna is connected to the
antenna jack.
Push the POWER switch turn on the radio. The display
will become illuminated. The radio will start up on the last
channel used prior to shutdown during the previous
operating session.
Transmitting
To transmit, wait until the “BUSY” indicator is off (the
channel is not in use), and press the PTT (Push-To-Talk)
switch on the side of the microphone (the “TX” lamp will
glow red). While holding in the PTT switch, speak across
the face of the microphone in a clear, normal voice level,
and then release the PTT switch to receive.
Automatic Time-Out Timer
If the selected channel has been programmed for
automatic time-out, you must limit the length of each
transmission. While transmitting, a beep will sound five
seconds before time-out. Another beep will sound just
before the deadline; the “TX” indicator will disappear and
transmission will cease soon thereafter. To resume
transmitting, you must release the PTT and wait for the
“penalty timer” to expire (if you press the PTT before this
timer expires, the timer restarts, and you will have to wait
another “penalty” period).
Scanning Operation
With the microphone in its hanger, press the SCAN
button momentarily to activate scanning. Typically, “DSC”
will initially appear on the display, indicating Dealer
Channel Scan as the scanning mode. If you wish to
change to one of the modes described in the list above,
press the SEL button repeatedly until that mode appears
on the display.
If you pick up the microphone while no signal is being
received, operation will shift to a particular channel.
Which channel that will be depends on which of the
following options the dealer has programmed for off-hook
channel selection:
Scan Start Channel
Lifting the microphone causes operation to revert to the
group and channel last selected before scanning started
or resumed.
Priority Revert
Lifting the microphone activates the Priority 1 channel in
the current group. If no channel is assigned level 1
priority, operation will be on the Priority 2 channel. If no
