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5-Tone (PMR) Signalling
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Why chose 5-Tone?
•
5-Tone is a non-proprietary signalling protocol that
allows the Icom radio to inter-operate with other brands
using the 5-Tone signalling.
•
This protocol also allows a mixed fleet operation.
•
It is faster than 2-Tone by employing a quick data
burst.
•
Customers are familiar with the protocol since it is an
Industry Standard in USA, Europe, and Asia.
•
Many manufacturers built dispatch consoles with this
capability.
•
5-Tone offers flexible muting characteristics.
5-Tone Features
1.
Selective Calling”
–
allows the dispatch console to
page an individual unit.
•
“Group Calling”
-
allows the dispatch console to page a
group.
•
“Answer Back Call”
–
Also known as “Radio Check”
allows the dispatch console to send a 5-Tone sequence
to a particular radio and when the target radio receives
the tone it answers back with another tone. This
function serves as a tool to verify if a unit is “ON”
and
within range.
•
“Auto Transmit”
–
Also known as “Radio Spy”
allows
the dispatcher to send a 5-Tone signal to the radio
causing it to open its transmitter microphone audio (Hot
Mic) in order to listen to whatever is happening in the
proximity of the radio. This is also very useful in
emergency cases where the user may not be able to
trigger the microphone.
•
“Stun/Kill –
This function allows the dispatch console
to disable temporarily or permanently a unit using the 5-
Tone capabilities. When “Stun”
is used, the unit may
regain its functionality by entering a password. When Kill
is used, the radio only regains functionality by
reprogramming the unit using the cloning software.
•
“Scan Start/Cancel”
–
Using 5-Tone a dispatcher can
send a signal to a radio or a group to commence the
“Scan”
function of the radio. If used with a group of
users, this feature allows the dispatcher to regroup
everyone in a different channel. This feature is also
known as “Radio Regroup”.
1.
5-Tone allows the PTT ID functionality on the radio.
2.
As with 2-Tone, PMR also provides audible alerts,
emergency signalling and Dispatch functionality
making it a workable upgrade to an existing fleet.
***All these functions can be accomplished with
individual radios also.
5-Tone Enhancements
1.
The PMR model and radio functionality provides the
programmer with RX Text identifiers. When a
particular 5-Tone sequence is received, a radio with
display will show the alias attributed to that tone
sequence.
2.
Where applicable, this radio also has flashing
indicators, variable audible signals and beeps.
3.
When transmitting a 5-Tone sequence, the radio can
select from a programmed list with aliases in order to
identify the code desired for TX.
4.
PMR radios allow for TX code editing and the creation
of a custom “User Code”
that will allow the
programmer to create a unique code for a customer.
5.
The system also allows for a user to select the TX
codes by assigning a button on the radio.