User's Manual

701-070801 Rev A This document contains proprietary information,
see proprietary statement on first page.
Page 28 of 85
Pressing the Back soft-button or the HOME button shall return the system to the Scan-Group-Selection
dialog. Pressing the Scan soft-button shall return the system to the Home page with the active
transceiver in scan mode.
TBD – How to navigate this by cursor/value? Note that selecting 1 of the 10 channels for priority
channel is inconsistent with the scan-group FPP pages.
Edit Group #1
Back Scan
100 PRESCOTT TWR
101 WEATHER
102 CHINO FD
105 PRESCOTT PD
Figure 28 Scan Group Edit Dialog
When the operator presses the “Scan” button on the Select-Scan-Group page, the system will return to
the Home page with the active transceiver scanning the selected group. The active channel of the active
transceiver shall be automatically added to the selected scan group as the priority-1 channel. The
system shall indicate it is scanning by displaying an the SCAN indicator.
If the system detects a signal while scanning, the display shall indicate the reception by displaying the
SCAN indicator in reverse video. Furthermore, the channel being received shall be displayed temporarily
in place of the active channel.
The display shall revert to showing the active channel when the signal has been lost from the scan
channel for more than a prescribed amount of time. This time delay, called scan-delay, shall be
programmable with a default of 3 seconds.
If the operator while the system is scanning, and the transceiver being scanned is the active transceiver,
and one of the scan channels is currently receiving, the scan channel being received shall be temporarily
removed from the scan group. This is a convenience function that is equivalent to changing the IN/OUT
status of the channel via Scan-Group-Edit page. The channel can be added back into the group using
the Scan-Group-Edit page.
If the operator presses PTT while the system is scanning, and the transceiver being scanned is the active
transceiver, and no scan channel is currently receiving, the system shall stop scanning, and then
proceed to transmit on the active channel. The system shall automatically resume scanning after 3
seconds of inactivity on the active channel.
If the operator presses PTT while the system is scanning, and the transceiver being scanned is the active
transceiver, and one of the scan channels is currently receiving, the system shall stop scanning, and
then proceed to transmit on the currently active scan channel. The system shall automatically resume
scanning after 3 seconds of inactivity on the active scan channel. This provides a talkback feature.