🚀 go-pugleaf

rschnapp@metaflow.com (Russ Schnapp) writes:
: 
: I've heard about frequency hopping and spread spectrum stuff for over a
: decade now.  It sounds like a great idea, but I have never bothered,
: for some reason, to ask two basic questions:
: 
: 1)  How does it increase range without increasing effective radiated
: power?  If it's simply a matter of raising the effective
: signal-to-noise ratio, how does it accomplish that?

I expect that the increased range is due to using digital transmission - not
to spread spectrum technology.

: 2)  How do the transmitter and receiver agree on the hopping sequence,
: and how do they synchronize?

I would guess that it will scan sequentially through the channels that 
are chosen. That would simplify the software tremendously. Or, since it
is digital, the next channel to be used could easily be transmitted, along
with the voice data. There would be plenty of bandwidth for control signals.

Bill