[USRP-users] Can the USRP B210 do passive scanning of WIFI?

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[USRP-users] Can the USRP B210 do passive scanning of WIFI?

Martin Braun via USRP-users
Hi,

Can the USRP B210 
a) do passive scanning of Wifi APs and Clients; and
b) do passive collection of Wifi packets off the air?


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Re: [USRP-users] Can the USRP B210 do passive scanning of WIFI?

Martin Braun via USRP-users
John,


V/R,

-Dave

On Mon, Oct 3, 2016 at 4:30 AM, John DeLeong via USRP-users <[hidden email]> wrote:
Hi,

Can the USRP B210 
a) do passive scanning of Wifi APs and Clients; and
b) do passive collection of Wifi packets off the air?


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Re: [USRP-users] Can the USRP B210 do passive scanning of WIFI?

Martin Braun via USRP-users
In reply to this post by Martin Braun via USRP-users

Hi John,

the B210 is "just" SDR frontend – it will give you the "raw" baseband spectrum as mathematically to what's on the air at the configured center frequency.

Having a maximum analog Bandwidth of 56 MHz, yes, you can observe a single channel. Jumping through a lot of Wifi channels is not going to be overly fast, the B210 practically being the USRP that has the slowest tuning/settle time.

In any case, the conversion from "complex baseband samples at a very high rate" to "OFDM Frames" to "WiFi Packets" to "WiFi payload and administrative data" is a software job, and not a capability of the USRP.

Think about it this way: Your question was basically "can I use this sound card to do speech recognition-based room surveillance" to which the answer is "yes, assuming you're very good with audio signal processing, speech recognition and signal classification; the soundcard is just going to give you audio samples".

Best regards,
Marcus

On 10/03/2016 01:30 AM, John DeLeong via USRP-users wrote:
Hi,

Can the USRP B210 
a) do passive scanning of Wifi APs and Clients; and
b) do passive collection of Wifi packets off the air?



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USRP-users mailing list
[hidden email]
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com


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