GME TX6200 - Manual (Page 22)

PAGE 22 I N S T R U C T I O N M A N UA L TX6200
CTCSS
To send the Selcall Ident
With the required Selcall Ident displayed
in the ‘CALL TO’ mode, press and hold
the CALL key for a few seconds until the
radio beeps. The Selcall Ident will be sent
automatically and the radio will return to
normal operation.
Call acknowledge in Group mode
There is no call acknowledge when
sending group calls. This is to prevent all
the radios in your group from trying to
respond to your Selcall transmission at
the same time.
Storing Group call Idents
Group Call Idents can be stored in
memory in the same way as a standard
Selcall Ident.
Receiving Group calls
Receiving a Group call is identical to
receiving a normal Selcall except that the
alarm sound is a LOW tone beep instead
of the normal High tone beep. The
Callers Ident or ALPHA Name appears on
the display in the usual way.
OVERVIEW
CTCSS (Continuous Tone Coded Squelch
System) is a squelch quieting 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 TX6200 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 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
Monitor key. If no signals are present
you will hear the usual hiss of an empty
channel. Press the Monitor key again to
restore the Squelch to its previous setting.