Evans, Not quite right. This isn't PCM where there's a direct correlation with the audio frequency and transmitted frequency. The CODEC is a multi-band CODEC where it looks at a number of slices of the audio spectrum, not just 2.5 KHz. For example, since little intelligibility is below 60 Hz, that probable isn't looked at.
Ed WA4YIH From: dstar_digital@yahoogroups.com [mailto:dstar_digi...@yahoogroups.com] On Behalf Of Evans F. Mitchell KD4EFM Sent: Thursday, May 14, 2009 4:38 PM To: dstar_digital@yahoogroups.com Subject: RE: [DSTAR_DIGITAL] Re: Signal Distance Bob, remember, D-Star is Narrow Band FM (2.5Khz) versus Wide FM @ 5Khz Deviation. You putting all your power in to a narrower bandwidth rather then spreading it out on wider bandwidth's. Evans F. Mitchell KD4EFM / AFA4TH FL / WQFK-894 Fla. D-Star Tech Support Group http://www.florida-dstar.info <http://www.florida-dstar.info/> Polk ARES A.E.C. http://www.polkemcomm.org <http://www.polkemcomm.org/> [Non-text portions of this message have been removed]
