On Mon, Dec 10, 2012 at 01:05:13PM +0100, Martin Braun (CEL) wrote: > On Mon, Dec 10, 2012 at 09:44:29PM +1000, Phil wrote: > > A recent post by Markus Gonser had me intrigued and so I > > experimented with his grc code. The resulting FM receiver does work > > but it doesn't quite sound right. My guess is that the quadrature > > rate is not correct at 705.6kHz. Is this the correct rate and if > > it's not what should it be? > > That depends. The quadrature rate is the rate of the incoming I/Q sample > stream. 705.6 kSps seems unusual, though.
Actually, it's 16*44.1kSps, which isn't that unusual. Still, you need to get that rate at the input. MB -- Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin Braun Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT -- University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association
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