t X 4 5 0 0
I n s t r u c t I o n m A n uA l
PA G E 1 7
•
transmitting 1453A will activate the alarms in all
radios with Idents 14530 through 14539 (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 will need 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.
is displayed, along with
the last sent or received selcall Ident. If an AlPHA
label is displayed you will need to press
F
then
ALPHA
to switch to numeric mode.
2. Press and hold the
Channel
knob until the radio
beeps. the right-hand digit of the selcall Ident will
flash.
3. rotate the
Channel
knob to select ‘A’ in the
flashing digit position. this is the special code that
will create the Group call.
4. Briefly press the
Channel
knob again to select the
next digit position.
5. continue entering the other 4 digits as required. the
selcall number is now ready to send.
6. Press and hold the
CALL
button. A long beep will be
heard and the radio will transmit the selcall Ident.
NOTE:
Where your radio 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 (e.g. 12AAA).
e.g.
sending Ident 145AA will call 100 radios with Idents
14500 -> 14599
sending Ident 14AAA will call 1000 radios with Idents
14000 -> 14999
You can also arrange to send selcalls to every tenth
radio by setting the second digit to A.
e.g.
sending Ident 145A5 will call radios 14505, 14515,
14525, 14535, 14545 . . -> 14595
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 label appears on the display in the usual way.
RECEIVE (RX) ONLy CHaNNELS
the radio includes support for up to 95 user
programmable rX-only channels with frequencies in the
range 403 – 520 mHz. Frequencies can be stored in five
separate channel banks labelled
A
to
E
, each containing
up to 19 channels. In addition, each rX-only channel
can be assigned an individually programmable Alpha
label to help identify that channel when it is selected.
Frequency and channel bank selections are accessed
through the configuration menu.
Selecting Channel Banks
Before programming or recalling channels you should
ensure you have selected the required channel bank.
the 5 channel banks can be accessed through the
configuration menu. the default channel bank is
labelled
RX-A.
RX-ONLy CHaNNEL BaNK
Bank
Channels
A
81
82
83
84
85
86
87
88
89
90
91
92 93
94
95
96
97
98
99
B
81
82
83
84
85
86
87
88
89
90
91
92 93
94
95
96
97
98
99
c
81
82
83
84
85
86
87
88
89
90
91
92 93
94
95
96
97
98
99
D
81
82
83
84
85
86
87
88
89
90
91
92 93
94
95
96
97
98
99
E
81
82
83
84
85
86
87
88
89
90
91
92 93
94
95
96
97
98
99
