GME GA9800 Instruction Manual page 126

Note:
you must press the
key otherwise the scan memory function will be activated.
See scaNNINg on page 7.
ADjUSTINg ThE BEEp TONE LEVEL
the beep tones on your tX3100 are designed to provide audible
feedback whenever a key is pressed. If the beep tone level is too
loud or too soft for your operating environment you can adjust it
as follows;
1. turn the tX3100 oFF.
2. Hold either the or key while turning the radio on.
3. A number will flash on the display to indicate the current beep
tone level setting.
4. Within 3 seconds, press the
decrease the beep tone level. the maximum level is 9 and the
minimum audible level is 1. to turn the beep tone off set the
level to 0.
5. to return the radio to normal operation, press any other key or
simply wait 3 seconds.
cTcss & dcs
CtCSS (Continuous tone Coded Squelch System) and DCS
(Digitally Coded Squelch) are Squelch quieting systems that
allow several groups of users to share the same channel without
disturbing each other. the system applies a continuous low-level
tone to your transmission and uses a matching tone decoder to
control your receiver's Squelch. With CtCSS or DCS 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.
there are two tone sets installed in your tX3100, compromising
50 CtCSS and 104 DCS user-selectable tones.
the tX3100 allows CtCSS or DCS to be enabled or disabled on
individual channels.
Note:
the CtCSS/DCS tone you select will be used for all
CtCSS/DCS enabled channels in your radio.
PA G E 6
key immediately after pressing the
or keys to increase or
SELECTINg ThE CTCSS OR DCS TONE
Choosing which tone to use will probably be dependent on the
other radios you talk to. If you talk to others outside your group
who already use CtCSS or DCS tones you will need to select the
tone set that matches theirs. the tX3100 includes most of the
commonly used tone sets.
If the users you talk to don't currently use CtCSS or DCS you can
make your own choice. there is no difference in performance
between the two tone sets.
Note:
When selecting tones please refer to the ctcss and Dcs
tone charts on pages 12 - 13.
the CtCSS and DCS tones are stored in your radio in a sequential
table. the first table location is oFF. the next 50 locations are
CtCSS tones followed by 104 DCS tones.
OFF CTCSS 01 to CTCSS 50
to select a tone
1. Switch the tX3100 off.
2. Press and hold the
'S' flashes and the channel number displays the currently
selected tone. If oF is displayed the tones are set to oFF.
3. Press the or
flashing 'S' indicates the tones you are selecting are
CtCSS tones.
4. If you advance past CtCSS tone 50 the tone number resets to
01 and the
i n s t r u c t i o n m A n u A l
DCS 01 to DCS 104
key while switching the radio on.
ctcss off
keys to select the required CtCSS tone. the
CtCSS tone 24
symbol flashes indicating that you are now
t X 3 1 0 0