Audiovox GMRS7001-2 Owners Manual - Page 11

CTCSS Mode Sub-Channel Selection

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Page 11 highlights

To change the channel: - From GMRS/FRS standby mode, press the MODE button (12) once or 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. - Press the PTT button momentarily to confirm selection. CTCSS Mode (Sub-Channel) Selection The Coded Tone Controlled Squelch System (CTCSS) provides 38 Sub-Frequencies. This feature allows you to utilize the coded squelch tones (01- 38) within a main channel, and 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 22 channels. To change the CTCSS Sub-channel: - From GMRS/FRS 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. - Then press the Up or Down button to select the desired sub-channel for use (01-38). - Press the PTT button momentarily to confirm selection. The CTCSS mode can be turned off by selecting the oF icon as the setting. NOTE: To communicate with other GMRS/FRS units, they must be switched to the same channel and CTCSS subcode. To communicate with other GMRS/FRS units that do not have subcodes, switch your unit to the same channel with the subcode set to oF. The CTCSS subcodes do not prevent others from hearing your transmission. This will only allow you to ignore all traffic on a given channel not using the same subcode. 11 128-6730 11 of 24

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To change the channel:
- From GMRS/FRS standby mode,
press the MODE button (12) once
or 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.
- Press the PTT button momentarily to confirm selection.
CTCSS Mode (Sub-Channel) Selection
The Coded Tone Controlled Squelch System (CTCSS) provides 38 Sub-Fre-
quencies. This feature allows you to utilize the coded squelch tones (01–
38) within a main channel, and 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 22 channels.
To change the CTCSS Sub-channel:
- From GMRS/FRS 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.
- Then press the Up or Down button to select
the desired sub-channel
for use (
01-38
).
- Press the PTT button momentarily to confirm selection.
The CTCSS mode can be turned off by selecting the
oF
icon as the setting.
NOTE:
To communicate with other GMRS/FRS units, they must be
switched to the same channel and CTCSS subcode. To commu-
nicate with other GMRS/FRS units that do not have subcodes,
switch your unit to the same channel with the subcode set
to
oF
.
The CTCSS subcodes do not prevent others from hearing your
transmission.
This will only allow you to ignore all traffic on a
given channel not using the same subcode.