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discriminator tap | RadioReference.com Forums
https://forums.radioreference.com/threads/discriminator-tap.86972/#:~:text=A%20frequency%20discriminator%20is%20the%20most%20common%20FM,greatly%20reduced%20increasing%20intelligibility%20especially%20on%20weak%20signals.
Discriminator output - The RadioReference Wiki
https://wiki.radioreference.com/index.php/Discriminator_output
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 …
Scanner Data Decoding by Discriminator output - AX CB ...
https://alphaxray.info/radio-scanner-hobby/2016/scanner-data-decoding-by-discriminator-output.html
A discriminator is the ‘heart’ of an FM receiver. After the discriminator, audio filters and amplifiers follow that may heavily distort a digital …
Foster Seeley Discriminator - Radio receivers - Amateur ...
https://www.radioexperimenter.us/radio-receivers/fosterseeley-discriminator.html
Summarizing the operation of the discriminator, deviation above the resting frequency reproduces the positive portions of the audio voltage and deviation below the resting frequency reproduces the negative portions of the audio voltage. The IF variations are filtered out by C5 and C6. Sine wave explanation.
Chapter 8 Frequency Modulation (FM) Contents
https://user.eng.umd.edu/~tretter/commlab/c6713slides/ch8.pdf
FM Demodulationby a Frequency Discriminator A frequency discriminator is a device that converts a received FM signal into a voltage that is proportional to the instantaneous frequency of its input without using a local oscillator and, consequently, in a noncoherent manner. An Elementary Discriminator Bandpass Filter f 0 = c elop ve En Detector-s (t) m 0 f c f f 0 j G (f) 8-8
FM Ratio Detector / Discriminator » Electronics Notes
https://www.electronics-notes.com/articles/radio/modulation/fm-frequency-demodulation-ratio-detector-discriminator.php
Ratio detector or discriminator was widely used for FM demodulation within radio sets using discrete components. It was capable of providing a good level of performance. In recent years the Ratio detector has been less widely used. The main reason for this is that it requires the use of wound inductors and these are expensive to manufacture.
FM Demodulation Detection: Frequency Modulation ...
https://www.electronics-notes.com/articles/radio/modulation/fm-frequency-demodulation-detection-discrimination.php
FM demodulation is also called FM detection and sometimes the phrase "FM discrimination" is used, although this term tends to be used with older circuits and technology. FM demodulation is a key process in the reception of a frequency modulated signal. Once the signal has been received, filtered and amplified, it is necessary to recover the original modulation from the carrier.
OP25 with Discriminator Audio Question | …
https://forums.radioreference.com/threads/op25-with-discriminator-audio-question.420031/
Location. Talbot Co, MD. Jan 20, 2021. #2. stillline1979 said: I've added a discriminator jack to my BCT15x and I am able to decode p25 easily with DSDPlus. I would like to do the same with OP25 so that I can decode on a pi4. However I have not been able to figure out if OP25 has an option for accepting discriminator audio via the microphone jack.
EL-GY 9043 - Selected Topics in Wireless Communications ...
http://witestlab.poly.edu/~ffund/el9043/labs/lab1.html
The 200 kHz FM radio channel we are trying to demodulate is located at an offset of 250000 Hz from the center frequency. The data is stored as interleaved unsigned 8-bit samples. (That's the uint8 data type.) Frequency discriminator. We'll use a kind of frequency discriminator called a polar discriminator. A polar discriminator measures the phase difference between consecutive …
comp.dsp | Frequency discriminator algorithms?
https://www.dsprelated.com/showthread/comp.dsp/62068-1.php
neok wrote: > Hi all, > > I had been searching the 'net for simple digital frequency > discriminator algorithms, mainly for demodulating a frequency > modulated audio signal as used for short-wave weather fax and > slow-scan TV.
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