Difference between revisions of "Discriminator output"

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m (Added our link for "PSR-500 Discriminator" - By: IC301)
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* [[R7100 Discriminator Tap Notes]]
* [[R7100 Discriminator Tap Notes]]
==Why use a resistor and/or capacitor ?==
See #6 through 8 of this URL: [ FAQ]

Revision as of 01:49, 14 March 2011

The Discriminator output from a scanner is the raw, unfiltered signal that a scanner produces before it is sent to the audio stage for output through the speaker -- also called the "baseband audio." This discriminator source is required for applications such as Trunker, T4Win, UniTrunker, and DSD. Most scanners must have a simple modification made to them to feed the discriminator output to Data Slicers, or in the case of UniTrunker, a soundcard.

Note that for providing a signal for ACARS decoding, a connection from an earphone or speaker output is all that's required. This is because ACARS runs at a much lower speed, and the discriminator is not involved in AM reception.


Also see the Scandata faq q2 article for a list of older scanners' tap points. This is from an original article by the late Bill Cheek.


Radio Shack

Other Radios

Why use a resistor and/or capacitor ?

See #6 through 8 of this URL: FAQ


These pages or links contain more information on discriminator taps for many brands and models of scanners, including older models