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- Hacker News
- What do normal people use SDRs for? I'm genuinely curious. Or is it just cool to do?by sigbottle
- Thanks claudeby asdff
- Having done repairs on a ton of older service monitors, and having my hand in SDR, this is amazing! There's a huge amount of machining and hardware to make a service monitor, but with desktop CNC, cheap PCBS, and jelly bean components that go into the 10s of GHz, the sky's the limit.
I'd add a heat sunk 100 watt DC-5Ghz 20dB fixed attenuator, 0-110 dB switched attenuator, 5 ghz low pass filter, 7-12 Ghz local oscillator/mixer up/down converter, and it would make a small, very high performance service monitor good to 5 Ghz. 8)
by mikewarot - Is this kind of thing why samsung asks you to sign a contract before letting third parties use the FM radios on their phones? Because many phone radios nowadays are software defined?by alightsoul
- Wow that's super cool! It's not DC to daylight but I sure don't know a cheaper way to get a 320 Msps receiver at 5 GHz.by aftbit
- FYI, since it's the same chipset I'm pretty certain this will work on the Banana Pi R4, which has built in PCIe for NVMe.
- Dope,guys at espargos did the same thing in esp32, there is another 5ghz variant with same LAN port that can give broader sweep and more resolution.by ram_rattle
- This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!
This development makes me hope that we'd be seeing more of these on common Wi-Fi cards, so that every random laptop could be used as an SDR for many fun and useful applications on a budget.
by yonatan8070