>Concerning __, NATHAN BOLLINGER said to JOHN FENDER in SCANRADIO:
 >
 > NB> If you can get one of the "spread-spectrum" phones, that would be even
 > NB> better,since they are constantly changing channels at a very rapid
 >pace.
 > NB> There's no way a scanner can keep up with them!
 >
 >If I understand correctly, spread-spectrum phones broadcast over a broad
 >range of frequencies at the same time, so that the signal at any given
 >frequency is below the level of normal background noise.  Only if you have
 >similar receiving equipment and know exactly where to look can you find the
 >signal.  That's why scanners can't lock in on them.
 >
 >
Actually, we're BOTH right. There's a couple of different kinds of spread 
spectrum. The "wide frequency range" type that you're discribing, and the 
"channel hopping" type that I described. I'm thinking like the spread 
spectrum cordless phones use the channel hopping scheme, but I could be 
ong.
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