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Richard Koch n1gp at hotmail.comAh yes, that makes sense now. Tnx everyone. > Date: Wed, 29 Jan 2014 22:12:03 +1000 > From: a.nielsen at shikadi.net > To: osmocom-sdr at lists.osmocom.org > Subject: Re: Direct sampling mode frequency range? > > > Can someone clarify what the frequency range is in Direct sampling > > mode. > > In direct sampling mode you can "tune" by setting the IF between 0 and > 30MHz. > > > So can the dongle in "direct sampling mode" (with appropriate antenna > > connection) receive > 14.4 Mhz (Nyquist) ? > > Yes, and it has nothing to do with Nyquist because the sample rate you > receive is only 2MHz or so as per normal. Direct sampling mode does not > capture a wider band than normal, it just uses a different method to > tune the receiver. So the oscillator frequency is irrelevant, and > Nyquist doesn't come into it any differently with direct sampling than > with normal sampling. > > Cheers, > Adam. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20140129/17dc3881/attachment.htm>