[Discuss-gnuradio] Error message when setting new center frequency

[Ulrika Uppman]

Hello everyone!

We are confused about the error returned by set_rx_center_freq. The code below 
is executed while the USRP2 is running. 

usrp2::usrp2::sptr u2;

//-- clip --//

usrp2::tune_result tr;
if (!u2->set_rx_center_freq(new_freq, &tr)){
  fprintf(stderr, "set_rx_center_freq(%g) failed\n", new_freq);
  //exit(1);
}

This results in that the set_rx_center_freq returns an error, but when looking 
at a plot of the received signal, the center frequency seemes to be set to the 
new frequency after all.

Regards
//Ulrika