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GX1300
8 BASIC OPERATION
8.1 RECEPTION
1. After the
GX1300
has been installed, ensure that the power supply and
antenna are properly connected.
2. Turn the
VOL
knob clockwise until it clicks to turn the transceiver on.
3. Turn the
SQL
knob fully counterclockwise. This state is known as “squelch
off”.
4. Turn the
VOL
knob until noise or audio from the speaker is at a comfort-
able level.
5. Turn the
SQL
knob clockwise until the random noise disappears. This
state is known as the “squelch threshold.”
6. Press the ▲ or ▼ keys to select the desired channel. Refer to the
channel chart on page 104 for available channels.
7. When a message is received, adjust the volume to the desired listen-
ing level with the
VOL
knob. The “
BUSY
” indicator appears on the LCD
indicating that the channel is being used.
8.2 TRANSMISSION
1. Perform steps 1 through 6 of RECEPTION.
2. Before transmitting, monitor the channel to ensure it is clear.
THIS IS AN FCC REQUIREMENT!
3 Press and hold the
PTT
(push-to-talk) switch of the microphone. The “
TX
”
indicator appears on the LCD.
4. Speak slowly and clearly into the microphone.
5. When the transmission is finished, release the
PTT
switch.
8.3 TRANSMIT TIME-OUT TIMER
(
TOT
)
When the
PTT
switch on the microphone is held down, transmit time is limit-
ed to 5 minutes. This limits unintentional transmissions due to a stuck micro-
phone. About 10 seconds before automatic transmitter shutdown, a warning
beep will be heard from the speaker(s). The transceiver will automatically
go to receive mode, even if the
PTT
switch is continually held down. Before
transmitting again, the
PTT
switch must first be released and then pressed
again.
NOTE
When a transmission was shut down by the TOT, the
GX1300
can not
transmit afterwards for 10 seconds.