Operating Mode and Features
GRMS Operation
- From GMRS standby mode, press and hold the (~) button for 2 seconds to turn on
power.
- Press the MODE button so the Channel number flashes.
- Select the desired channel with the Up (10) and Down (11) Buttons. When receiving a
call, the
signal strength meter appears to indicate incoming received signal strength and the
Monitor
section of the Transmit/Monitor LED (16) lights
green.
- Press and hold the PU button (4) to transmit, then speak into the microphone clearly
and slowly. The Transmit section of the Transmit/Monitor LED (16) lights
red.
- Release PTT Button (4) to receive.
- Communication can only be accomplished when the channel and CTCSS tone
frequency of at least two parties are the same.
- The
CTC
icon will be displayed on the LCD panel if the CTCSS tone frequency
function is enabled.
Channel Selection
In order to communicate with other GMRS units, both transmitting and receiving party
must be on the same frequency.
The GMRS-1100 has 22 channels (frequencies) (1-22) indicated by the large digits on
the LCD display panel. Channels 1 through 14 are the same frequency as FRS
channels 1 through 14. Communication with Audiovox FRS and compatible units is
possible on these seven channels. Before transmitting on the selected channel, press
the Monitor (M) Button (2) to check the activity on that channel. It there is activity on the
selected channel, change to another channel that is clear.
To change the channel,
- From GMRS standby mode, press the MODE button (12) until the channel number
flashes.
- Press the Up Button (10) briefly to move to the next higher main channel number.
- Press the Down Button (11) briefly to move to the next lower main channel number.
CTCSS Mode (Sub-Channel) Selection
Coded Tone Controlled Squelch System (CTCSS) with 38 Sub-Frequencies. This
feature allows you to utilize the coded squelch tones (00-38) within a main channel. This
enables you to communicate with another party on the same main channel using the
same subcode. (This filters out unwanted transmissions without the same coded
squelch tone). There are 38 CTCSS Sub-channels for each main channel. A different
subcode may be selected for each of the 15 channels.
To change the CTCSS Sub-channel,
- From GMRS standby mode, press the Mode Button twice; a flashing
oF
or
sub-channel
number is displayed. If
oF
is displayed, press the Up or Down button to enable the
CTCSS mode; the
CTC
icon will appear steady on the display with the flashing
