The default setting is Off.

See “What is CTCSS/DCS?” on Page 20 for a complete list of CTCSS and DCS tones.

Setting the System Frequency Modulation

Menu

Srch/CloCall Opt

Set Modulation

Auto - the scanner uses the default modulation for the frequency band.

AM - the scanner uses AM (amplitude modulation) for the frequency band.

FM - the scanner uses FM (frequency modulation) for the frequency band.

NFM - the scanner uses narrowband FM for the frequency band.

WFM - the scanner uses wideband FM for the frequency band.

Note: The default setting is Auto.

This setting controls the modulation method used for the frequency band. In most cases, if you leave this set to Auto, the scanner automatically selects the correct modulation type for the system you are programming.

Setting Channel Attenuation (Conventional Channels Only)

Menu

Program System

Select the system

Edit Group

Select the group

Edit Channel

Programming/Editing Optional Settings

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Uniden UBC396T Setting the System Frequency Modulation, Setting Channel Attenuation Conventional Channels Only