Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

[Nick Foster]

On Thu, Nov 17, 2011 at 2:33 AM, hasanimam <address@hidden> wrote:
>
> Hello all,
>
> I am here once again and would like to bother you a bit.
> I am using the usrp2_rx_cfile.py command to get the IQ data from usrp2. I am
> using the following command
>
> sudo python usrp2_rx_cfile.py -f 800M -d 496 -s -v -N 10
> /home/gnuradio4/Desktop/observed_data/test.dat
>
> And I am getting the following output:
>
> Network interface: eth0
> USRP2 address: 00:50:c2:85:35:7d
> Using RX d'board id 0x0053
> Rx gain: 15.75
> Rx baseband frequency: 800M
> Rx DDC frequency: 0
> Rx residual frequency: 0
> Rx decimation rate: 512
> Rx sample rate: 195.312k
> Receving 10 samples
> Writing 16-bit complex shorts
> Output filename: /home/gnuradio4/Desktop/observed_data/test.dat
>
> In the above, it shows that the sample rate is 195.312k. I want to raise
> this rate but it seems that decimation rate has a limit upto 512 so i cant
> do that.
> Can you suggest me any other way to raise the sample rate?
> In fact I want the time difference between each sample to be around 100us,
> but sample rate 195k gives me 5us.

"Decimation" means the ratio by which the 100MHz main clock is
divided. 100MHz / 512 = 195.312kHz. Try using a lower decimation.

--n

>
> Thank you.
>
>
> --
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> http://old.nabble.com/usrp2_rx_cfile.py-issue-tp32860995p32860995.html
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
>
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