Robotron Pty Ltd WRG3P Manuel D’Utilisation

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This is the simplest scanning method.  Click on the Search button to select
this scanning mode, then use the [>>] or [<<] buttons to scan either forward
or backward from the currently tuned frequency. To stop scanning, press the
Stop button (marked with a green square). To pause, press the Pause
button (marked with two vertical bars).

A signal is considered ‘found’ when the signal level is higher than squelch.
Correct setting of the squelch value is therefore essential for scanning.

If you set the squelch level too low, then scanning will stop even if there is
no signal (the background noise will be higher than the squelch level). On
the other hand, if the squelch level is set too high, then a useful signal may
be missed because it will fall short of the squelch level. With a bit of trial and
error, you will need to adjust the optimum setting for the squelch level
(usually a few dB above the background noise floor).

When a signal strength level is higher than the squelch level, this indicates
that a signal has been found. You can configure the software to specify what
action you want to be taken at this point. To access this configuration facility,
go to Options | Scanning in the top bar menu.