Using The Attenuator - Radio Shack PRO-96 Owner's Manual

ED – configures the channel for the ED mode for EDACS trunking system channels
Note
MO (MOT) and ED modes are not available when performing service searches, limit
searches and the TUNE function.

Using the Attenuator

To reduce interference or noise caused by strong signals, you can
reduce the scanner's sensitivity with the attenuator.
There are two attenuator modes in your scanner. Normal
attenuator mode allows you to set the attenuator on a per-channel
basis. Normal mode is useful when individual channels are found
to be prone to interference.
Global attenuator mode applies attenuation to every channel in
the scanner, and overrides any normal mode attenuator settings
that you may have entered
To assign attenuation to a channel in the scanner:
Press ATT when the scanner is stopped on a channel, or by
manually navigating to a channel by using direct channel entry or
pressing the or arrow keys. An "A" will appear in the top line of
the display. Press ATT again to toggle attenuation off.
To assign attenuation to a search bank:
Press ATT while searching. Attenuation will be applied to the
active search bank, or search group within a search bank. Press
ATT again to turn attenuation off.
To use the global attenuator:
Press FUNC and then ATT to set the attenuator to global mode.
Global ATT will appear for 2 seconds at the bottom line, then
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