SRM9022 ~ PMR MOBILE RADIO USER GUIDE
©
TMC Radio 2005
page 19
TNM-U-E-0063 Issue 1
5.5 S
CAN
F
UNCTIONS
Scanning
consists of sequentially searching up to 15 channels for a valid signal (RF,
CTCSS or DCS tone). When found the radio will stop on that channel until the signal
disappears again.
The Microphone may need to be in the cradle, (on hook) for the radio to scan.
While listening on the channel, the User may PTT on that channel. After the signal
disappears the radio will remain listening on the channel for a short time (typically 3
seconds) before resuming scanning. PTT is inhibited while the Mic is in cradle.
If a
Priority/Emergency
Channel is assigned, the radio will interleave a check of this
channel between each normal channel check. The radio may also check the Priority
Channel every few seconds while stopped on a channel. If a signal is found on the
Priority Channel then the radio will switch to that channel immediately.
If programmed, the Priority Channel is automatically selected when the Microphone
is removed from cradle.
To activate Scanning, press the SCAN Function button from the Main Channel
Screen.
5.5.1 Scan
Screen
The display shows the name of the current Scan-
Group (e.g. “ScanChGrp”), which may be changed
using the and
buttons.
The Scan-Group Number is shown at the top-left of
the display, i.e.
1…4
if it is a User Scan-Group, or
blank
for Fixed Scan-Groups
.
While the Scan Screen
is displayed the radio is scanning the shown group.
The Scan Screen does not time-out. Normal exit is via the
OK
button.
The RSSI indicator shows the received signal strength as the radio is scanning.
All other buttons have the same assignments as in the Main Channel Screen.
When stopped on a channel, the name of the selected site, and the “rotating arrow”
symbol is replaced by the Speaker symbol.
To temporarily skip the channel from the Scan-Group, press
OK
then select
“Skip”
.
Skipped channels are restored when a different Scan Group is selected or if Scan is
exited. The Priority Channel cannot be skipped.
OK: Edit
is only active for User Scan Groups and opens up the Scan-Edit Screen for
the selected Scan-Group allowing Channels to be added, deleted or set as the
priority channel (see below).
