Difference between revisions of "Discriminator output"
From The RadioReference Wiki
m (Added our link for "PSR-500 Discriminator" - By: IC301) |
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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. | 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. | ||
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'''Uniden''' | '''Uniden''' | ||
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*[[media:Bc996discriminatortap.jpg|BCT15 Discriminator tap point]] | *[[media:Bc996discriminatortap.jpg|BCT15 Discriminator tap point]] | ||
*'''NOTE:''' Look dead center of the circuit board, then go right and down. Both the 996 and BCT15 appear to share the same tap point location. | *'''NOTE:''' Look dead center of the circuit board, then go right and down. Both the 996 and BCT15 appear to share the same tap point location. | ||
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'''Radio Shack''' | '''Radio Shack''' | ||
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'''Other Radios''' | '''Other Radios''' | ||
| + | * [http://forums.radioreference.com/gre-scanners/85155-psr-500-discriminator.html PSR-500 Discriminator] | ||
* [[R7100 Discriminator Tap Notes]] | * [[R7100 Discriminator Tap Notes]] | ||
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==Links== | ==Links== | ||
Revision as of 22:43, 5 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.
Modifications
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.
Uniden
- BC-245 Discriminator Tap
- JPEGs of BC246 discrim tap
- BC296D/UBC 3300XLT
- BC350A Discriminator Tap
- BC-396T Discriminator Tap
- NOTE: You must be a member of the BCD396T Yahoo to view this message.
- The JPEG for the discriminator tap can be viewed here
- BC-780 Discriminator Tap
- BC785D Discriminator Tap
- BC796D Discriminator Tap
- BC895XLT Discriminator Tap
- BCD996 Discriminator tap point
- BCT15 Discriminator tap point
- NOTE: Look dead center of the circuit board, then go right and down. Both the 996 and BCT15 appear to share the same tap point location.
Radio Shack
- Pro-93 Discriminator Tap
- Pro-95 Discriminator Tap
- Pro-96 Discriminator Tap
- Pro 97 Discriminator Tap
- Pro-106 Discriminator Tap
- Pro-164 Discriminator Tap
- Pro-2052 Discriminator Tap
- Pro-2053 Discriminator Tap
Other Radios
Links
These pages or links contain more information on discriminator taps for many brands and models of scanners, including older models