Hi David
SDR driving Kuhne G4 transverter.
On 30/01/2019 8:18 AM, David Tiller wrote:
Glen,
Thanks for the reply. That's what I meant - more energy/bit.
What kind of gear do you use for 10 GHz? I've only got a couple of Gunn
oscillators, and they're way to unstable for any sort of narrowband work.
On Jan 29, 2019, at 3:38 PM, glen english <[email protected]> wrote:
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 <[email protected]> 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.
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