LTESniffer: An Open-Source LTE Downlink/Uplink Eavesdropper

(github.com)

256 points transpute | 1 comments | 22 Oct 24 00:42 UTC | HN request time: 0.213s | source

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rnhmjoj ◴[22 Oct 24 19:38 UTC] No.41917901[source]▶

>>41910084 (OP) #

Only tangentially related, but has anyone ever tried to eavesdrop on DSL? Modern DSL (VDSL2 in particular) is essentially a HF signal guided on an unshielded twisted pair (with line stubs and what not), so it should easily leak out and radiate. Apparently it does so much that radio hamateurs in the UK have been complaining[1] about it a lot. I wonder if the signal can still be demodulated or it's just an annoying baseline on the spectrum.

[1]: https://rsgb.services/public/publications/vdsl/measuring_and...

replies(1): >>41932351 #

rasz ◴[24 Oct 24 05:56 UTC] No.41932351[source]▶

>>41917901 #

>eavesdrop on DSL?

VDSL modem spectrum during synchronization https://www.youtube.com/watch?v=7m8pAuk9lsk

Adsl2 handshake sound https://www.youtube.com/watch?v=foPGdfsrskA

I also remember seeing one with DOCSIS Cable Modem, but cant find it :(

replies(1): >>41934812 #

1. rnhmjoj ◴[24 Oct 24 12:27 UTC] No.41934812[source]▶

>>41932351 #

That seems to be recorded by tapping into the telephone wire, I meant from RFI.

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