6-7.3 System Initiated Dispatch Trunk II
Signaling
The trunking analyzer sends a low-speed data word
on the voice channel frequency. The radio receives
the control channel message to move to the voice
channel and switches to that voice channel. When
the radio detects the low-speed data word, the radio
unmutes and stays on the voice channel until the
test is terminated.
To setup testing, activate the Trunk mode per
paragraph 6-5, place the cursor in the "Meter:" field
and press the softkey
SYSTEM INIT to view current
data and test status for a system initiated trunked
test sequence. Within the Display zone, place the
cursor in the "Sig Type:" field and press the softkey
TRUNK II to select Trunk II signaling. A screen
similar to figure 6-8 appears.
Figure 6-8. Dispatch Test Screen – System Init Trunk II Signaling
Parameter selection is similar to Radio Initiated
Dispatch Trunk I described in paragraph 6-6.3, with
the addition of the following parameter:
Call Type
Radios in Trunk II systems monitor an
announcement talk group in addition to their own
talk group. If the operator is making an an-
nouncement call to the radio, the announcement
talk group must be entered.
Move the cursor to the "Call Type:" location and
select ANNOUNCEMENT for announcement calls,
and TALK GROUP for standard talk group calls.
NOTE
SMARTZONE Auto Affiliation may be tested
in the system initiated call by selecting
SMARTZONE at the "Auto Aff:" field. This
requires power cycling the radio at the start
of each test as described in paragraph 6-6.3.
102
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