Re: SDR with LCD keypad shield
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Hi Peter,
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thanks a lot for your help and the information.
There is a new Teensy 4.0 on the market, approx. 24,- $ and
the Audio Adapter 14,- $. The older Teensy 3.xx seems to be no
more available.
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I'll take a closer look at it and then decide, whether it makes sense
to build the device.
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gl es vy73
Ralf? - DK9PS -
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Gesendet:?Montag, 21. November 2022 um 17:24 Uhr
Von:?"G8JCF" <g8jcfsdr@...>
An:[email protected]
Betreff:?Re: [g8jcfsdr] SDR with LCD keypad shield
Hi Ralf
I don't think the Arduino UNO has the performance to carry out the DSP required to demodulate, AGC, etc of the IQ signals.
I did experiment a couple of years ago with using a Teensy 3.2, together with the Teensy Audio Adapter with the Elektor SDR as the RF front end to make a standalone Elektor SDR Receiver. The Teensy has the horsepower required for the demodulation and much more, but I have to say I lost interest and let the project slide, so it never got completed or even close to a public release.
You should take a look at Frank, DD4WH's Github Repository for a Teensy 3.1 based SDR ?
73
Peter
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