GX1700
Page 28
8 BASIC OPERATION
8.1 RECEPTION
1. After the transceiver has been installed, ensure that the power supply
and antenna are properly connected.
2. Press and hold the
key until the radio turns on.
3. Rotate the
SQL
knob fully counterclockwise until “
” is shown on
the display. This state is known as “unsquelched”.
4. Rotate the
VOL
knob until noise or audio from the speaker is at a com-
fortable level.
5. Rotate the
SQL
knob clockwise until the random noise disappears and
the “
” icon is turned off. This state is known as the “squelch
threshold.”
6. Press the
/
key to select the desired channel. Refer to section
“
17 CHANNEL ASSIGNMENTS
” for available channels.
7. When a message is received, adjust the volume to the desired listening
level. The “
” indicator on the display indicates communications is
being received or the radio is unsquelched.
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 the
PTT
(push-to-talk) switch. The “
TX
” indicator on the LCD
is displayed.
4. Speak slowly and clearly into the microphone.
5. When the transmission is finished, release the
PTT
switch.
NOTE
This is a noise-canceling microphone. Position the Oval Slot label
“
MIC
” within 1/2 inch (1.3 cm) from the mouth for optimum perfor-
mance.
8.3 TRANSMIT TIME - OUT TIMER
(
TOT
)
When the
PTT
switch on the microphone is held down, transmit time is lim-
ited to 5 minutes. This limits unintentional transmissions due to a stuck
PTT
switch inside the microphone. 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.