it's a high-speed DAC, *obviously* it emits radio waves and "faking a cell tower with a VGA adapter" is scaremongering; you can't receive any data so no handset can associate with it. at worst, you could jam a cell tower (FCC will come and kick your ass)https://twitter.com/Viss/status/988503433924624384 …
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that doesn't give you a BTS. to make a functioning BTS, not only you need precise synchronization between RX/TX, but also low latency and stable clock from a GPSDO or at least OCXO, none of which is remotely true for this setup
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No, but it potentially gives you both send and receive for other SDR applications.
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sure, I was talking specifically about faking a cell tower also, it would be HIGHLY inadvisable to use this thing for any realistic SDR use case because it shits all over the spectrum; both GPS and BTS spoofing use harmonics
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Yes. I'm assuming you'd stick a band-pass filter and an appropriate-band LNA on it to get a useful signal out of it. You can get those parts cheap too.
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Appropriate-band TX amplifier? Yeah, those are still not at all cheap. And using a typical LNA won't be too useful -- those are designed for low noise at high wideband gain, but don't actually have high output *power*.
End of conversation
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