Selective Calling - GME TX4500S Instruction Manual

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ctcss off ctcss tone 50
4. to see the actual sub tone instead of the tone
label, briefly press the channel control. For
ctcss tones the tone frequency will be displayed
in hz. For Dcs tones the tone code will be
displayed. Press the channel control again to
return to the ctcss/Dcs label (refer to the ctcss
and Dcs tone charts on page 28.
CTCSS Label
5. to switch ctcss/Dcs tones off, rotate the
channel control fully to the left until 'ctcoF' is
displayed.
to exit the menu, briefly press the PTT or wait for
the menu to time-out.
NOTE:
the selected ctcss/Dcs tone will be used
globally on any channels that have ctcss enabled.
Enabling cTcSS/DcS on a channel
(Silent Mode)
Enabling ctcss/Dcs on a channel will prevent the
squelch from opening 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
icon will still appear on the display) – but their voice
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. select the required channel.
2. Briefly press the Silent key. A high beep will be
heard and an icon (ctcss) or
will be displayed in the lower right of the display
to indicate silent mode is now enabled on
that channel.
t X 4 5 0 0 s
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Dcs tone 104
CTCSS Sub tone
Frequency
icon (Dcs)
I n s t r u c t I o n m A n u A l
NOTE:
You cannot enable silent mode unless
a ctcss or Dcs tone has been selected in the
configuration menu. If ctcss/Dcs has been set to
oFF, silent mode is inhibited.
To Disable Silent Mode on a channel
1. select the required channel. An icon (ctcss) or
icon (Dcs) will be displayed indicating silent
mode is enabled.
2. Briefly press and hold the Silent key. A low beep
will be heard and the (ctcss) or
icon will disappear to indicate silent mode has
been removed from that channel.
IMPORTANT: when silent mode is enabled on a
channel you should always check the
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 configuration menu which will
automatically prevent your radio from transmitting if
the channel is already in use.
Monitor Function
when the current channel is in silent mode, the
icon may appear but no sound will be heard in the
speaker. this indicates that your radio is receiving
a signal that does not match your ctcss/Dcs tone.
If you wish, you can briefly monitor the channel as
described below. this temporarily disables silent
mode, allowing the signal to be heard.
to monitor signals on the channel, press and
hold the Squelch control. when you release the
Squelch control, silent mode is restored and the
radio will become quiet again.

SELECTIVE CALLING

Overview
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.
Your radio will allow you to store up to ten of your
most frequently called selcall numbers in
memory and each number can be labelled for
easy identification.
(Dcs)
icon for
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