On Thu, Nov 17, 2011 at 8:28 AM, Nick Foster <
address@hidden> wrote:
> 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.