2-8 FEATURES AND BENEFITS
Scan Start Channel (home channel):
Causes the transmission to occur on the original channel that the radio was on, when scan
operation was started. Talkback can be enabled or disabled.
Designated Channel:
Causes transmissions to occur on a designated, pre-programmed channel. Again Talkback can be
enabled or disabled.
Last Busy Channel:
Causes transmissions to occur on the channel that was the most recently ’landed’ on (i.e.: busy).
Talkback can be enabled or disabled.
Last Free Channel:
Causes transmissions to occur on the channel that was most recently detected as being free of
activity. The last free channel is updated each time the scan list is gone through, to ensure that the
last free channel remembered by the radio was very recently free. When the PTT is pressed this
avoids, as far as possible, sending the radio to a channel that is now busy. Talkback can be enabled
or disabled.
Voted Channel:
Causes transmissions to occur on the last voted channel. See the section on Scan Vote.
The radio’s display indicates the channel on which transmission will occur or is occurring,
depending on the operational mode in use.
Benefits
❏ Calls can be initiated even whilst scanning.
❏ Auto Scan simplifies scan operation, and frees up a function button.
❏ Highly flexible - tailor to match specific user requirements.
❏ The most important channel can be scanned more frequently than other channels and even
when landed on another channel.
Scan TX
Mode
Channel to transmit on, or to suspend scan on, if taken off-hook
During Active
Scan
Landed,
Talkback disabled
Landed,
Talkback enabled
Scan Start
Channel
Home Home Landed
Designated Designated Designated Landed
Last Busy Last Landed Landed Landed
Last Free Last Free or
invalid if none
Landed Landed
Voted Voted Voted Landed
NOTE
In order to have the radio ’power-up’ into scan mode, the power-up channel should be
defined, and be set to an ’Auto Scan Start’ channel.
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