> Quoting Matthew Sadler to Troy H. Cheek on 08-13-96  10:37 <
 -> Ack!  Forget I said that.  I did some more checking and it
 -> looks like these signals are images, although the aren't
 -> exactly the proper spacing for images.  Maybe I'm tuning in on
 -> image sidebands?
 MS> Well, you have to remember that a cellular signal is 30 kHz
 MS> wide, and most scanners tune in 15 kHz increments in that
 MS> portion of the band.
Hi Matt,
Actually the channel spacing is 30 Khz, but cellular radios deviate
a maximum of + or - 12 Khz, making the signal no more than 24 Khz
wide.  Normal narrow-band FM as is used for most 2-way has a maximum
deviation of + or - 5 Khz, making that signal a total of 10 Khz
wide.  Also, the tuning increments in the rest of the 800 Mhz band
are 12.5 Khz, and not 15.  That is what will make a lot of images
from cellular sound bad.  I guess your answer is right in a
practical sense, just the numbers off a bit.  :-)
73,
Mike
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