What I had in mind was a subset of the whole area, Frequency Hopping Spread
Spectrum. https://en.wikipedia.org/wiki/Frequency-hopping_spread_spectrum
From the wikipedia article -
"...spread spectrum techniques are methods by which a signal...generated with a particular
bandwidth is deliberately spread in the frequency domain, resulting in a signal with a
wider bandwidth".
I suppose something like this would be fine for local comms. Wider bandwidth means more
data/inforamtion can be transmitted. A form of trunking could be done with this as well.
Wider bandwidth = more trunk channels. If I am not mistaken, 802.11b/g/n utilize spread
spectrum?
One down side, depending how you modulate the data, could be distance of transmission.
Wider bandwidths usually don't transmit far as narrower bandwidths do. but maybe this
could be overcome with a slow baud/symbol rate?
Just some thoughts rattling in my head
Lots going on here, so hoping I haven't pointed you down a rabbit-hole...
eh, I have allot of irons in the fire in my own life - it is nice to take a break at times
;). I think, though, we should be talking about how to utilize this for offgrid and emcomms.
Are there any radios that you know if that a Radio Amateur could use that can transmit
spread spectrum?
73, de KG7UJH
Debian
How ya gonna do it? PS/2 it!
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