In the short term, how do i fix this problem? Do I just low pass filter my incoming signal?
Isaac Ed Criscuolo-2 wrote: > > isaacgerg wrote: >> Hi, >> I am hooked up to the BasicRx Daughterboard and wrote a simple >> applicate >> using the GRC to survey the spectrum from 1MHz to 250MHz and run the user >> tunable output through the WFM Demodulator. I can get FM radio stations >> in >> the 88-108MHz region just find. However, I am also getting copies of >> these >> stations at frequencies higher and lower than this range!!! It's as if >> the >> frequency I request is out of range and the tuner wraps around. What's >> going on here? When I tune to 50MHz, I expect to be at 50MHz, not some >> other frequency! > > On re-reading my first post, I realized it wasn't very clear. So, > to be more explicit: > > A 0 - 32 MHz signal will produce the expected output. > > Signals from 32 - 64 MHz will get mapped onto 32 - 0 MHz > (note the frequency inversion) > > 64 - 96 MHz will get mapped to 0 - 32 MHz > > 96 - 128 MHz will get mapped to 32 - 0 MHz > > > ... and so on, up to the limits of the board. > > > @(^.^)@ Ed > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://www.nabble.com/BasicRx-Daugterboard-Frequency-Wrapping-tp17375343p17406821.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
