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BASIC FEATURE SET APPLICATIONS (continued)
SELECTIVE Alert / Fleet Call
Definition:
FleetSync protocol will allow a user to select and alert a specific fleet of radios that a call
has been received. This will keep the other radios that are not within the same Fleet from
hearing conversations. This FleetSync feature is similar to, and should be used in the
same way as Two Tone paging. The radio once alerted will sound an alert tone or initiate
the Horn Honk feature.
NOTE: Because of the limitations of low speed signaling such as LTR or CTCSS
this feature does not lend itself well to being used as a direct connect private call
feature.
Usage:
Allows the dispatcher to alert an entire fleet at once.
Application:
A utility company dispatcher wants to selectively call all units in the same fleet. With
SelCall, the dispatcher selects the alpha tag associated with a desired Fleet/ID number
(126 - 0000) to contact all workmen in a fleet at the same time, as shown in Figure 3.
NOTES:
1. Although the illustration above shows a mobile base station originating the call, any fleet
portable or mobile unit can make SelCalls.
2. Signaling "AND/OR" in a FleetSync SelCall is no different from the other selective calling
formats (e.g., 2-tone and DTMF decode) with respect to squelch and speaker un-muting
operation. Signaling "AND/OR" should be set appropriately for the application:
a. Use OR if fleet units are to unmute normally for all voice traffic per QT/DQT/LTR signaling
11/01 Rev 2.0
80 Series Version 2
FleetSync Application Guide
Figure 3
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