View Single Post
  #126  
Old December 24th 05, 05:10 PM posted to rec.aviation.owning,sci.electronics.design,alt.solar.photovoltaic
external usenet poster
 
Posts: n/a
Default Wind/Solar Electrics ???


"Joel Kolstad" wrote in message
...
wrote in message
...
Joel Kolstad wrote:
1) It's the bandwidth of the signal that matters, not the highest
frequency
present...

One might say "the highest frequency present" is the highest frequency
non-zero component of the power spectrum.


Sure, but the point is that you can sample a signal that's has all (of a
good approximation thereof, e.g., 99%) of its energy between 144-148MHz
(this is the 2m amateur radio band) at 10MSps and recover everything.
I.e., the bandwidth of the signal is only 4MHz, so you only have to sample
at something
8MSps.



Only if you demodulate the signal first.

daestrom