How can we adjust the ADC rate in usrp2 in ofdm benchmark example?

GNU Radio
1

Hi guy,

Thanks in advance. I am a new comer to gnuradio. Now I am handling the
project based on ofdm benchmark. I want to down-sample ADC to
2M/s(default
is 100M/s) to capture the low frequency signal, 1Mhz in our case. I
guess
the USRP capture all the signal using the maximal ADC rate by default.
Does
anyone know how to do that? Any help will be greatly appreciated.

Best,
Kay

2

On 05/23/2014 10:35 AM, Yingjie C. wrote:

Hi guy,

Thanks in advance. I am a new comer to gnuradio. Now I am handling the
project based on ofdm benchmark. I want to down-sample ADC to
2M/s(default is 100M/s) to capture the low frequency signal, 1Mhz in our
case. I guess the USRP capture all the signal using the maximal ADC rate
by default. Does anyone know how to do that? Any help will be greatly
appreciated.

If you specify a sampling rate of 1 MHz, the USRP will downsample for
you. No reason to worry about the 100Msps.

Which device are you using?

M