I want to adapt the DVB-T AverMedia TV Pilot" tuner as a software defined radio, but it is not built on a RTL chip, so the question arises, is there some kind of driver to use my tuner as a radio?
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1$\begingroup$ Hello and welcome to ham.stackexchange.com! $\endgroup$– rclocher3Commented Nov 19, 2020 at 15:52
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$\begingroup$ Does this webpage describe what you have? $\endgroup$– Mike WatersCommented Nov 25, 2020 at 17:37
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1$\begingroup$ Yes, but I have an older tuner and it is built on a different chip. $\endgroup$– АнтонCommented Nov 26, 2020 at 4:35
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1 Answer
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Probably not. Looking at the chips:
NXP TDA18271HDC2 is the RF frontend / "tuner" chip.
Afatech AF9033B is the DVB-T demodulator.
Conexant CX23102 is the analog TV demodulator.
NEC (now Renesas) uPD720114 is a USB hub, which shares the USB port between the AF9033B and the CX23102.
Neither the AF9033B nor the CX23102 seems to have a feature to directly sample the IF signal reaching it, the way the RTL2832 does, so there's no SDR potential here. It's a perfectly good TV receiver, but an entirely "fixed-function" one.
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$\begingroup$ Thank you very much for the answer. It's just that this tuner has a GPS receiver, so I thought that I could make a sdr. I also heard that in the standard program for the receiver you can find a file where the frequency of its tuning is registered, and by opening this file in a notepad, you can correct the frequency to the desired one. I kind of went through all the files, but I couldn't find anything like that. $\endgroup$– АнтонCommented Nov 28, 2020 at 10:42