MM-013994-001, Rev. J
53
9.31.2 Send RTT Message via the Menu
1. Press or until “RTT Msg” appears and press . If no message has been configured, “No
Message” is displayed.
2. Use or to select the message. The configured RTT message is displayed on the 1
st
line of the
display.
3. Press the button to send the selected message. If no message has been configured, no message is
sent and an error tone sounds.
Press or
to cancel RTT message selection.
9.32 SITE LOCK
Users may need to select the site in cases where network communications are down. The Site Lock menu
allows a user to manually roam to a specific site. The sites in the menu are populated with the current
site, adjacent sites, and node 2 sites. The menu allows the user to select a particular site based on the Site
Name. Once selected, the radio will randomly pick a channel at the site that is identified as operational
and attempt to attach to it.
If the channel is not available, the radio attempts to attach to the next channel in the channel list for the
site until it has attempted every channel at the site. If no channels are available, the radio plays a “Site
Not Found” tone and displays “SiteUnavail” on the second line of the Site Lock menu. The radio reverts
to its normal roaming functionality.
If the radio does find a valid channel on the site, it attaches to it, plays a “Site Found” tone, displays
“SiteAvail” on the second line of the Site Lock menu for 2 seconds, and then reverts to the Dwell menu.
9.33 GPS COORDINATES
The portable radio will display the coordinates of the channel that the radio is currently tuned to through
provisioned information. Otherwise, the following procedure assumes the radio uses an external GPS
receiver and is receiving adequate signals from GPS satellites.
1. Press or
until the “GPS” menu appears in the display. Current GPS coordinate latitude and
longitude data continuously scrolls in the top line of the display in a degrees:minutes:seconds format.
2. Press or
to change to another menu.
If the radio uses an external GPS receiver (e.g., GPS microphone) the information that it
provides can only be sent over the air and not displayed by the radio.
9.34 V-TAC OPERATION
9.34.1 Extended Coverage Modes (XCOV, XCOV-TG, and XCOV-PROF)
In addition to all standard portable radio operating capabilities, Extended Coverage adds the V-TAC’s
bridging (vehicular repeat) functionality for accessing the OpenSky radio network. Each portable radio
connected to the V-TAC using Extended Coverage is considered a “client” on the V-TAC. Extended
Coverage benefits portable radio users since it allows them to get network connectivity using the
V-TAC’s higher transmit output power and better antenna system.
The V-TAC supports three Extended Coverage modes: Extended Coverage for individual users (XCOV),
Extended Coverage for a Talk Group (XCOV-TG), and Profile Extended Coverage (XCOV-PROF).
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