Difference between revisions of "Discriminator output"
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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]], and [[UniTrunker]]. 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. | 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]], and [[UniTrunker]]. 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 | + | Note that for providing a signal for [[ACARS]], a plug 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. |
* See Bill Cheeks [[SCANDATA.FAQ]] listed at the bottom of the page for detailed instructions on how to tap the discriminator in your scanner and the locations of various tap points. | * See Bill Cheeks [[SCANDATA.FAQ]] listed at the bottom of the page for detailed instructions on how to tap the discriminator in your scanner and the locations of various tap points. | ||
* See this [http://www.radioreference.com/digital/dig/bc895-tap.txt document] from Greg Knox regarding instructions on how to tap the discriminator output on the BC-895 Scanner. See this [http://www.radioreference.com/digital/dig/bc895-tap.jpg picture] for the location of the discriminator output on the 895. | * See this [http://www.radioreference.com/digital/dig/bc895-tap.txt document] from Greg Knox regarding instructions on how to tap the discriminator output on the BC-895 Scanner. See this [http://www.radioreference.com/digital/dig/bc895-tap.jpg picture] for the location of the discriminator output on the 895. | ||
Revision as of 08:08, 26 February 2006
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, and UniTrunker. 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, a plug 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.
- See Bill Cheeks SCANDATA.FAQ listed at the bottom of the page for detailed instructions on how to tap the discriminator in your scanner and the locations of various tap points.
- See this document from Greg Knox regarding instructions on how to tap the discriminator output on the BC-895 Scanner. See this picture for the location of the discriminator output on the 895.
- Here are a few more sources of discriminator tap information;
