T X 3 5 5 0 S
I N S T R U C T I O N M A N UA L
PA G E 1 7
Once the Priority channel has been clear for 5 seconds the
radio will resume scanning the other channels.
If a signal appears on any other channel, scanning will pause
on that channel and will remain there while the channel is
busy – as long as there are no signals on the Priority channel.
During this time, the receiver will continue to check the
Priority channel every 2 seconds resulting in a series of small
breaks in the reception of the busy channel. Once the signal
has gone and there has been no activity for 5 seconds, the
radio will resume scanning.
To transmit on the Priority channel at any time, simply press
the
PTT
. The radio will switch straight to the Priority channel.
When you have finished your conversation and there has
been no further activity for 5 seconds, the radio will resume
scanning the other channels.
If you don’t wish to listen to a busy channel, briefly press
the or key while the radio is paused on that channel.
The busy channel will be temporarily removed from the scan
group to allow time for the channel to become clear again
and scanning will continue. The skipped channel will be
reinstated in the scan sequence after 30 seconds (see
Auto
Skip
).
If you need to use your Priority channel (for an urgent call),
briefly press the
PRI
key. The scan will be cancelled and the
radio will jump straight to the Priority channel.
If the radio is paused on a busy channel and you want to
remain there, briefly press
SCAN
. The radio will exit scan and
remain on the busy channel. At this point you will no longer
be monitoring the Priority channel.
To resume Group scanning press
SCAN
again.
NETWORK SCAN (NET-SCAN)
Net-Scan allows a group of radio users to maintain
communications even when the band is congested. To
achieve this all members of the Net-Scan group must share
a common CTCSS/DCS code and a common set of scan
channels.
Once activated, Net-Scan’s intelligent scanning software
keeps track of clear channels within your scan group. When
any member of the group transmits, their radio automatically
selects a clear channel to transmit on. Other radios scanning
in the same Net-scan group will lock onto that channel
allowing all members of the group to join the conversation.
If a signal from outside your Net-Scan group appears on the
chosen channel (either with no code or the wrong code), the
group will automatically switch to a new clear channel at
the next transmission. In this way the group can continue to
communicate with minimal interference to or from other users.
Enabling Net-Scan
Net-Scan is normally switched off by default but can be
enabled through your radio’s menu.
NOTE
: When you enable Net-Scan you will also be prompted
to choose a suitable CTCSS or DCS tone to be used by your
Net-Scan group. All members of your Net-Scan group must
use this same code.
To Enable Net-Scan
1. Press and hold
MENU
to enter the menu.
2. Press
MENU
repeatedly until ‘NS xxx is displayed.
3. Press or to change the current Net-Scan setting.
• To enable Net-Scan using CTCSS, select from NS-01 to
NS-50 (CTCSS tones 01 to 50).
• To enable Net-Scan using DCS, select from NS001 to
NS104 (DCS codes 001 to 104).
• To disable Net-Scan, select ‘NS-OF’.
When finished briefly press the
PTT
to exit the menu.
Selecting Net-Scan
When Net-Scan is enabled, a Network scan option becomes
available in the scan group selection. To select Network
Scan, repeatedly press
F
followed by
OS/GS
until ‘NETWK’
is displayed.
