User's Manual

701-070801 Rev A This document contains proprietary information,
see proprietary statement on first page.
Page 23 of 85
the knob counterclockwise shall select the previous available channel by alphanumeric identifier. Figure
21 depicts the standby channel being tuned by alphanumeric identifier.
Figure 21 Changing Standby Channel by Alphanumeric Identifier
When the unit is operating in tactical mode and standby tuning is enabled and the operator presses the
CHAN Transceiver-Menu button, the Channel-Number-Entry dialog shall appear to change the standby
channel on the active transceiver. Figure 91 depicts the Channel-Number-Entry dialog.
If the number entered is a valid channel, it shall be loaded into the active transceiver and the display
shall return to the Normal-Operation-Page. If the entered number is invalid, the digits entered shall be
cleared and the operator can try again. Entering a channel number of 0 shall load the manual channel
for the active transceiver. Pressing the HOME button shall cancel the operation and return to the
Normal-Operation-Page.
6.4.1.6.2 Direct/Repeat Mode
When the unit is operating in tactical mode and the active channel is not a simplex channel, and the
operator presses the DIR Transceiver-Menu button and the transceiver is in Direct mode, the transceiver
shall change to Repeater mode. Conversely, if the transceiver is in Repeater mode, pressing the DIR
Transceiver-Menu button shall change the transceiver to Direct mode. If the active channel is a simplex
channel, the DIR Transceiver-Menu button shall have no effect as DIR should be displayed at all times
6.4.1.6.3 Encrypted Mode
When the unit is operating in tactical mode and the active channel is capable of encryption, and the
operator presses the PVT Transceiver-Menu button and the transceiver is in encrypted mode, the
transceiver shall change to non-encrypted mode. Conversely, if the transceiver is in non-encrypted
mode, pressing the PVT Transceiver-Menu button shall change the transceiver to encrypted mode. If
the active channel (or transceiver itself) is not capable of encryption, the PVT Transceiver-Menu button
shall have no effect.
6.4.1.6.4 ATC Mode
When the unit is operating in tactical mode and the operator presses the ATC Transceiver-Menu button,
the transceiver shall change to ATC-COM mode. Note ATC-COM functionality is only available on CWT
modules. If the active transceiver is an APX, the ATC Transceiver-Menu button should be disabled or
invisible.
6.4.1.6.5 OTAR Process
When the operator presses the OTAR Transceiver-Menu button, the OTAR process shall begin. The first
step in this process is confirmation. The operator shall be presented with the OTAR start confirmation
dialog, depicted in Figure 22. The operator may press the NO button or the HOME key to cancel the
operation, or press the YES button to continue the OTAR operation.