To set up testing, select the Trunk mode by placing
the cursor in the "Mode:" field in the Display Zone,
and selecting the
TRUNK softkey. Place the cursor
in the "Meter:" field and press the softkey
RADIO
INIT
to view current data and test status for a radio
initiated trunked test sequence. Place the cursor in
the "Sig Type:" field and press the softkey TRUNK I
EP II
to select Trunk I EP II signaling. A screen
similar to figure 6-5 appears.
6-6.3 Radio Initiated Dispatch Trunk I
EP II Testing
At the s
ame time that channel grants are being sent
on the control channel, the analyzer is sending low-
speed data on the voice channel. The radio receives
the channel assignment and switches to the voice
channel and transmits connect tone and voice. Once
the connect tone from the radio is measured and
displayed, the analyzer enables its modulation and
unmutes its speaker. Throughout the handshaking
sequence, the trunking analyzer updates the status
thermometer at the appropriate time. Refer to
Appendix F for a description of the status
thermometer signaling events for each test
sequence.
Param
eter selection is the same as Radio Init
Dispatch Trunk I described in paragraph 6-6.1.
Figure 6-5. Dispatch Test Screen – Radio Initiated Trunk I EP II Signaling
6-6.4 Radio Initiated Dispatch Trunk II
Testing
The Trunking Analyzer performs an ISW decode
sequence on the control channel that provides
talkgroup and unit ID information instead of fleet
and subfleet information. Once the ISW data is
decoded, the trunking analyzer sends channel grant
OSWs on the control channel and low-speed data
on the voice channel. The radio detects the channel
grant OSWs, switches to the voice channel, and
begins transmitting connect tone and voice. The
trunking analyzer detects the connect tone and
enables its modulation and unmutes its speaker.
Throughout the handshaking sequence, the trunking
analyzer updates the status thermometer at the
97
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