Ctcss Tone Set Compatibility; Busy Lockout; Monitor Function; Selective Calling - GME XRS-330C Instruction Manual

to CTCSS but uses 1 of 104 digital codes to control the Squelch.
There is no difference in performance or function between CTCSS
or DCS so choosing which system to use will largely depend on
the other radios you talk with. If others already use CTCSS or DCS,
you should select the system that matches theirs. If the users
you talk to don't currently use CTCSS or DCS then you can make
your own choice. Both types are included in the radio to maintain
compatibility with other radio systems.

CTCSS tone set compatibility

The GME CTCSS tone set comprises 50 tones made up of the
standard CCIR-38 Tone Set plus an additional 12 tones added to
the end. If communicating with other brands of radios that only
use the CCIR-38 tone set, please select from one of the first 38
tones to ensure compatibility with these radios.
If communicating with other GME radios, you may choose from
any of the 50 tones. However, to ensure compatibility, please
refer to the tone set table listed in each radio's Instruction manual
because the tones used in older GME models may be listed in a
different order to those in your radio.
To select a CTCSS or DCS code, refer to the MENU / RADIO
SETTINGS options.
Enabling CTCSS/DCS on a channel (Silent mode)
Enabling CTCSS/DCS on a channel will prevent the Squelch from
opening on that channel unless the incoming signal matches your
selected CTCSS/DCS tone. Other users on the same channel who
are not using your CTCSS/DCS tone will still be received by your
radio (the con will still appear on the display) but they will not
be heard in the speaker.
Only when someone transmits on the channel using your CTCSS/
DCS tone will the Squelch open to allow the signal to be heard.
Channels where CTCSS/DCS have been enabled are said to be in
'Silent mode'.
NOTE: Silent mode can be enabled on any channel except
emergency channels 5 and 35.
To enable Silent mode on a channel
1 Press MENU and select 'FUNCTIONS'.
2 Select 'TOGGLE SILENT' then press MENU to select 'ON'
3 An icon (CTCSS) or
of the display to indicate Silent mode is now enabled on that
channel.
NOTE: You cannot enable Silent mode unless a CTCSS or DCS tone
has been selected in the 'RADIO SETTINGS' menu. If CTCSS/DCS
has been set to OFF, Silent mode is inhibited.
To disable Silent mode on a channel
1 Press MENU and select 'FUNCTIONS'.
2 Select 'TOGGLE SILENT' then press MENU to select 'OFF'
3 The icon (CTCSS) or
display to confirm Silent mode is now disabled on that channel.
IMPORTANT: When Silent mode is enabled on a channel you
should always check the icon for signs of traffic on the channel
before transmitting to ensure you do not accidentally transmit
over the top of another user. Alternatively, you can enable Busy
Lockout in the menu which will automatically prevent your radio
from transmitting if the channel is already in use.
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icon (DCS) will be displayed at the top
icon (DCS) will be disappear from the

Busy Lockout

When using Silent mode with CTCSS/DCS, your radio's receiver
remains quiet to all signals outside your CTCSS/ DCS group. As a
result, if you do not notice when others are transmitting on your
channel you could accidentally transmit over the top of them.
The Busy Lockout function detects when others outside your
CTCSS/DCS group are transmitting on the channel and prevents
your radio from transmitting over them. If you press the PTT
when the channel is busy the radio will emit a warning beep and
the icon won't be displayed. If this happens, look for the
icon on the display as an indicator that the channel is in use. If the
channel is busy, simply wait until the channel is clear and press
the PTT again.
To enable or disable Busy Lockout, refer to the MENU / RADIO
SETTINGS options.
NOTE: A 'Busy Lockout Override with CTCSS Match' option is
available through the XRS Connect App. When this option is
enabled, Busy Lockout will not prevent you from transmitting over
the top of another signal where their CTCSS/DCS code matches
yours (i.e. The signal is from a member of your group)

Monitor function

When the current channel is in Silent mode, you may see the
icon appear but hear no sound in the speaker. This indicates that
your radio is receiving a signal that does not match your CTCSS/
DCS tone.
Press the key to briefly monitor signals on the channel. The
Silent mode will be temporarily disabled while the
pressed allowing you to hear signals on the channel. When you
release the key, Silent mode is restored and the radio becomes
quiet again.
NOTE: You will only have a brief moment to monitor the channel
for signals because holding the
seconds will switch the radio off.

SELECTIVE CALLING

Your radio has a Selective Calling system known as SelCall that
operates like a telephone. Your radio is pre-programmed with its
own unique SelCall Identification number. If this number is called
by another radio, your radio will beep to alert you. If you do not
want to hear any other activity while waiting on a channel, you
can select the QUIET mode. Your radio will then remain quiet to all
incoming signals until your SelCall number is called.
You can store up to 20 of your most frequently called SelCall
numbers in memory and each number can be labelled for easy
identification.

SelCall identification number

Your radio is factory programmed with its own unique SelCall
Identification Number. This number identifies your radio from
others in your area. Your radio's own SelCall Ident will be displayed
for a few seconds to the lower-left of the display when you first
turn the radio on. You will need to make your Ident known to
anyone who may need to call you using SelCall.
NOTE: Although your radio is factory-programmed with a unique
SelCall Ident, you can change your Ident to another number if
required, using the MENU / SelCall option.
key is
key for more than a few
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