Alinco DJ-S40 - Manual (Page 26)

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5. Advanced Operations
5. Advanced Operations
5-1 Scanning
The frequency of a signal you wish to receive can be automatically sought by
the scan function.
When a signal is received, scanning will stop, and resume after a while depending
on the setting of the scanning mode.
■ Scanning Modes
Timed Scan:
After stopping on a busy frequency, scanning resumes when the signal
ceases or five seconds later even if the channel remains busy.
Busy Channel Scan:
Scanning resumes only when the signal ceases. The receiver then moves
to the next channel.
Scanning direction can be changed by pressing the
▲/▼ keys during scanning
operations.
Reference: When the tone squelch is set (TSQ), if a received signal
contains the tone squelch frequency programmed in your
transceiver, scanning will stop, the squelch will unmute and
the signal will be heard. If the received signal does not match
the tone frequency you have set, the squelch is not unmuted
and scanning continues.