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Bluetooth Classic Sniffing

Posted: Mon Feb 24, 2020 3:21 pm
by tylerdurden
Hi all!

Just purchased one of this cool SDR for bluetooth tests.
Iv'e searched all over the internet for simple Classic Bluetooth sniffer.
The only SDR sniffers I found so far is for BLE in ADV channels only.

Is there a reason why there is not even one example for Classic Bluetooth sniffer on SDR in the internet?

I simple want to capture all *classic* (br/edr) bluetooth packets and store them inside a pcap file.

TY so much for help!

Tyler.

Re: Bluetooth Classic Sniffing

Posted: Wed Feb 26, 2020 5:06 am
by rtlsdrblog
Bluetooth is at 2.4 GHz, and an RTL-SDR can only receive up to 1.7 GHz. I think you'd be better off using a stanard hardware based Bluetooth dongle.

Re: Bluetooth Classic Sniffing

Posted: Wed Feb 26, 2020 5:48 am
by snn47
Even if you use a converter that would mix the BT-frequencies to below 1700 MHz, you would need also to be able to folloe the frequency hopping pattern of BT see https://en.wikipedia.org/wiki/Bluetooth

Re: Bluetooth Classic Sniffing

Posted: Wed Feb 26, 2020 7:27 pm
by Username
You need more HackRF putted together to cover the hole frequency at all.