[Hackrf-dev] Locate the interference at 2.4 GHz

Russell Handorf rhandorf at handorf.org
Sun Jul 5 18:52:39 EDT 2015


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You can also connect a mismatched antenna (lossy antenna system) and
wander around until you find the strongest signal source. If you have
the adapters and cable, take some coax, strip off 1.5 inches to bare
copper and connect the other terminated end into your radio rx. This
is something I've done to identify signal sources. It's bad, like roll
up some news paper and smack me bad, but it works.

Also Dominic is right, need some proof over the type of signal. If
you're bold, you can also try gr-fosphor; it renders wifi signals all
pretty and stuff...

r

On 07/05/2015 05:10 PM, Dominic Spill wrote:
> On 5 July 2015 at 17:27, Srinivasan T <tsvs.lc at gmail.com> wrote:
>> 
>> I am in the location where there are no 2.4 GHz networks ( no
>> ssid ) but using hackrf with SDR#, I can see solid single line (
>> red and yellow combinations ).
> 
> What makes you think that they are 2.4GHz wifi signals?  Do you
> have a screenshot?
> 
>> How do we figure where is the source of this line ?
> 
> You could try using a directional antenna, (or build something
> that blocks 2.4GHz signals and place it next to your existing
> antenna) _______________________________________________ HackRF-dev
> mailing list HackRF-dev at greatscottgadgets.com 
> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
> 
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