This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/osmocom-sdr@lists.osmocom.org/.
Leif Asbrink leif at sm5bsz.comHello Miguel, In Linrad I have these defines: #define MAX_RTL2832_SAMP_RATE_H 2400000 #define MIN_RTL2832_SAMP_RATE_H 900001 #define MAX_RTL2832_SAMP_RATE_L 300000 #define MIN_RTL2832_SAMP_RATE_L 230000 900 kHz does not work, try 900001 Hz. The range 300001 to 900000 Hz does not work with RTL2832. 73 Leif A. Vallejo" <ea4eoz at gmail.com> wrote: > Hi again. > > I noticed a strange behaivour from RTL-SDR source in GNU-Radio 3.7.1 > > When sample rate is set to 900ksps, actual output sample rate is only 300 > ksps. > > You can check this easily connecting a RTL_SDR Source to a WX Gui FFT Sink > and a RF signal generator. > > For example, on RTL-SDR Source set sample rate to 900000 and frequency to > 144000000 Hz. > > On the WX GUI FFT Sink, set sample rate to 900000 and base frequency to > 144000000 Hz. > > Now apply a signal on 144.1 MHz. The FFT Display will show it at 144.3 MHz. > > Apply a signal on 144.05 MHz. The FFT Display will show it at 144.15 MHz. > > Now on the WX GUI FFT Sink, set sample rate to 300000 and repeat the above > steps. The signal will be displayed at its right places. > > Interestingly, setting sample rate to 1Msps works fine. > > Tested with both E4000 and R820T dongles. > > Any advice? > > Thank you!