Re: [Discuss-gnuradio] Question regarding vector_sink_c

[Tom Rondeau]

Wee Shinhan wrote:
> Hi eric, 
>
> Thanks for the reply, i have connected it to the
> channel filters, i trying to do an estimate on
> wireless channel coefficient. Therefore i'm trying to
> capture the complex data received before
> de-modulation. I havent have much success using vector
> sink even when i set a range for the data captured,
> all doesnt seems right.
>
> Is there any blks that will be useful for my
> experiment? Or do i have to write my own C++ blk to
> process my needs. Thanks again.
>
> regards,
> ShinHan

The channel filter passes everything coming from the USRP and there's no 
squelch here, so you'll get samples of the noise if you aren't 
transmitting. Even if you are transmitting from another USRP, the 
received signal is going to be sampled at the wrong time and have 
frequency and phase offsets. I'm guessing that's what you mean by not right.

Tom