Deactivating The Page Mode; Ctcss; Monitor Function; Selecting The Required Ctcss Tones - GME GA9800 Instruction Manual

4 channel amplifier
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TX4400, identify the Caller's Ident and return the call .
Note: Before transmitting on the Paging channel, the
TX4400 will check the channel for activity and will not
transmit if the channel is in use . Only when the channel is
clear will the paging Ident be sent .
TO RETURN A CALL IN PAGE MODE
If you return to your radio and it is beeping, briefly press the
QUIET key . The radio will exit the PAGE mode and 'CALL
FROM' will be displayed along with the Selcall Ident or
Alpha Name of the Caller .
To return the call, briefly press the CALL button . The
Caller's Ident will be transferred to the 'CALL TO' mode
ready for sending . Now press and hold the CALL button for
a few seconds until the radio beeps . The callers Selcall Ident
will be sent . If the call is successful, you will hear two quick
acknowledge beeps in your radio's speaker as the caller's
radio responds .

DEACTIVATING THE PAGE MODE

• T o de-activate the Page mode, briefly press the
QUIET key .
• T o de-activate the Page mode and jump to the Priority
channel, briefly press the Channel knob .

CTCSS

CTCSS (Continuous Tone Coded Squelch System) is a
squelch quietening system that allows several groups
of users to share the same channel without disturbing
each other . It uses one of 50 preset sub-audible (very low
frequency) tones to open and close the squelch on your
radio . The system applies a continuous low-level tone to
your transmission and a matching tone decoder to your
receiver's Squelch . With CTCSS enabled, the channel
remains quiet to all incoming signals unless they carry the
correct tone . When a transmission with the correct tone is
received, the Squelch opens and remains open for as long
as the signal is present . When the transmission ends, the
channel becomes quiet again . Transmissions that do not use
the correct tone will not be heard .
The TX4400 allows CTCSS to be enabled or disabled on
individual channels . In addition, the CTCSS tone frequency
is user programmable . Note that the CTCSS tone you select
will be used for all CTCSS enabled channels in your radio .

MONITOR FUNCTION

The monitor function temporarily opens your radio's
Squelch to allow you to listen for signals from other CTCSS
users outside your group . Because their CTCSS tone is
different to yours, your Squelch would normally remain
closed, preventing you from hearing them . By using the
T X 4 4 0 0
Monitor switch, you can open the squelch and listen on the
channel to check that it is clear before transmitting . This
will help prevent you from accidently transmitting over the
top of someone .
To use the Monitor Function, press the Squelch knob
(MON) . If no signals are present you will hear the usual
hiss of an empty channel . The squelch will remain
open as long as the Squelch knob remains pressed .
Release the Squelch knob to restore the Squelch to its
previous setting .

SELECTING THE REQUIRED CTCSS TONES

To select the required CTCSS tones on your radio, use the
following procedure:
1 . Switch the TX4400 OFF at the volume control .
2 . P ress and hold the F and SILENT keys simultaneously
while turning the radio ON again . 'CODE' will be
displayed and the 'SILENT' icon will be flashing . In
addition the 'BUSY' icon will be visible indicating you are
about to select the receiver's CTCSS tone . The channel
display will now correspond to one of 50 different
CTCSS tones as shown in the table below . The factory
default is 00, which is No Tone .
3 . T o select the desired receiver tone, rotate the Channel
switch until the required tone number is displayed .
4 . P ress and hold the QUIET key for a few seconds . Both
the code number and the 'SILENT' icon will flash, then
the radio will beep as the code is stored .
Selected
CTCSS
Tone
5 . B riefly press the QUIET key . The 'TX' icon will appear
indicating you are now selecting the transmitter's
CTCSS tone .
6 . T o select the desired transmit tone, rotate the Channel
switch until the required tone number is displayed .
7 . P ress and hold the QUIET key for a few seconds . Both
the code number and the 'SILENT' icon will flash, then
the radio will beep as the code is stored .
Selected
CTCSS
Tone
I NST RUC TIO N M AN UAL
BUSY Icon indicates Receive
Tone is displayed
SILENT is Flashing
TX Icon indicates Transmit Tone is displayed
Silent is
Flashing
PAG E 17

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