GME TX4600 - Manual (Page 17)

TX4600 INSTRUCTION MANUAL PAGE 17
eg. 12330, 12331, 12332, 12333 . . --> , 12339
• Transmitting the SelCall Ident 12031 will only
activate the alarm in the radio with the SelCall
Ident of 12331.
• Transmitting 1233A will activate the alarms in
all radios with Idents 12330 through 12339
(a total of 10 radios).
If the radios in your fleet do not have sequentially
numbered SelCall Idents and you want to make
use of this function, you can arrange for your
Dealer to re-program the SelCall Idents in your
radios.
PROGRAMMING AND SENDING
GROUP CALLS
The process for entering a Group call Ident is the
same as entering a normal SelCall Ident.
1. Press the CALL button. ‘CALL TO’ is displayed,
along with the last sent or received SelCall
Ident.
2. Enter the required SelCall Ident as follows:
(a) Press and hold the F (Function) key until
the radio beeps. The right-hand digit of
the SelCall Ident will flash.
(b) Press the or keys to select ‘A’ in the
flashing digit position. This is the special
code that will create the Group Call.
(c) Briefly press the F (Function) key again to
select the next digit position.
(d) Repeat steps (b) and (c) to enter the other
4 digits as required. The last digit will be
set to ‘A’.
Once the Ident has been entered you have 10
seconds to send it otherwise the CALL TO mode
will be cancelled and the Ident you entered will
be lost.
NOTE: Where your TX4600 allows it,
programming group calls for 100 radios is
identical except that you will need to select ‘A’ for
the last two digits (e.g. 123AA). For 1000 radios
you will need to select ‘A’ for last three digits
(eg: 12AAA).
eg:
100 Radios Ident Sent: 123AA
Idents called: 12300 -> 12399
1000 Radios Ident Sent: 12AAA
Idents called: 12000 -> 12999
To send the SelCall Ident
With the required SelCall Ident displayed in the
CALL TO mode, press and hold the CALL button
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 Caller’s Ident or ALPHA Name appears
on the display in the usual way.
LISTENING CHANNELS
The TX4600 has provision for adding an
additional 19 user programmable ‘Listening’
frequencies between 403 MHz and 520 MHz.
These channels can be programmed by you using
the front panel keys, making the TX4600 a useful
UHF scanning receiver.
CALL TO
42333-8_TX4600 IM.indd 17 28/08/13 11:21 AM