On Sun, 13 Jun 2004 19:37:52 -0500, Vic Martinez wrote:

Ok, these 'slivers' of spectrum you say that are omitted, WHY???? Other
than Cell Phone Freq. Does it affect price T-H-A-T much if those OTHER
'slivers' are omitted?? I don't get it, Why doesn't ONE company, just
one, offer a DECENT scanner that has everything but cell. Is the '500
the closest thing to that KIND of scanner?

Slivers of spectrum are omitted in some USA-version
receivers so they comply with the FCC's regulations about
rejecting cellular phone signals.

If they didn't comply, it would be illegal to market
them in the USA.

If you took the full coverage European
versions of the same radios and tested them in these
band segments, you would probably find that they are not
selective enough in these ranges to reject the cell phone
signals adequately. Rather than making the radios
more selective (and increasing the price), the
manufacturers have "copped out" and chopped some
frequency coverage in the USA version.

Examples are the USA versions of the Yaesu VR-500 and VR-120,
and the ICOM IC-R5 and IC-R20. The USA version Alinco
DJ-X10T and DJ-X2000T omit band segments which would
otherwise permit reception of cellular phone images.

Some of the more expensive tabletop receivers are more
selective and cover more frequencies.

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Bob Parnass, AJ9S GNU/Linux User http://parnass.com