IMO There's no need to conserve BW on the ham bands
IMO we should be reducing information rate, sure, which reduces energy
required to transmit
But while 4FSK is easy (2 bits per symbol) , if we used the whole 16kHz
channel and adopted something like FSK-64 (6 bits per symbol) , the
symbol rate would be 1/3 of 4FSK, leading to lower SNR requirements.
I'm playing with FSK-256 for 10 GHz EME codec-2....
On 30/01/2019 7:15 AM, Steve wrote:
On Tue, Jan 29, 2019 at 12:54 PM David Tiller <dtil...@davidtiller.com> wrote:
Wouldn't using FM eliminate the spectral efficiency of 4-FSK?
I was thinking about a PL-Tone and a nice wide signal. Obviously 4FSK
on the lower freqs would be better to use SSB.
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
