Ah yes, that makes sense now. Tnx everyone.
> Date: Wed, 29 Jan 2014 22:12:03 +1000 > From: [email protected] > To: [email protected] > 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. >
