[USRP-users] Receiving signal without antenna.

John Malsbury john.malsbury at ettus.com
Mon Feb 27 16:35:28 EST 2012


Matthew,

Wires and cables sometimes act as antennas too.

http://en.wikipedia.org/wiki/Antenna_%28radio%29

-John


On 2/27/2012 1:24 PM, Matthew Hinojosa wrote:
> Hi, I am running simple tests with two separate USRP's. On one usrp, i 
> am transmitting a known signal at a known frequency, and on the other 
> USRP i am trying to look at that signal by using the uhd_fft.py 
> script. When doing this, i was sending a sine wave at 2 GHz and also 
> receiving this signal at the 2GHz range. However, I was able to 
> receive the signal without the antenna attached to the USRP. Can 
> anybody tell me how this is possible or why this is happening.
>
> Thank you,
>
> Matthew Hinojosa
> Undergraduate Research Assistant
>
>
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> USRP-users at lists.ettus.com
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