[BC] Short AM Tower-POLNET

[Mike McCarthy]

Dave,

There is a new state law (IL.) which trumps certain local home rule 
ordinances and sets the maximum at 200 ft. before many special restrictions 
can apply.  It's the result of a really heavy duty lobbying done by the 
cell  industry to establish some consistency across the jurisdictions.


MM

At 10:45 AM 1/4/2008 -0600, Dave Dybas wrote
>Guys,
>
>The POLNET folded unipoles were necessary to get past the local zoning
>restrictions. The village allowed towers up to 100 ft tall, obviously to
>accommodate their need for Cellular service, but would not allow anything
>taller than that.
>
>The 4 tower folded unipole array performs fine, as designed, but is a bit
>inefficient (80% coverage)compared to a properly sized 1/4 wave height
>array.
>
>Dave Dybas
>
>
>-----Original Message-----
>From: broadcast-bounces at radiolists.net
>[mailto:broadcast-bounces at radiolists.net] On Behalf Of Bobby Cox
>Sent: Friday, January 04, 2008 10:13 AM
>To: Broadcasters' Mailing List
>Subject: RE: [BC] Short AM Tower
>
>Yes, we built that phasor for Polnet in late
>1999.  It was certainly not an ideal
>situation.  As I recall it, they had to use those
>short, grounded, self supporting towers with top
>hats and skirt kits (with no stubs) in order to
>fit within local restrictions on towers.  Mark
>Mueller managed to get that one wrestled in and licensed.
>
>Best Regards,
>
>Bobby Cox , Ph.D.
>Senior Staff Engineer
>Kintronic Laboratories, Inc.
>Phone:  423-878-3141
>Fax: 423-878-4224
>Email:  bcox at kintronic.com
>
>
>-----Original Message-----
>From: Patrick Griffith, N0NNK / WPE9HVW
>Sent: Friday, January 04, 2008 10:07 AM
>Subject: Re: [BC] Short AM Tower
>
>I presume that WNVR/1030 in Vernon Hills IL ran into some kind of local
>restriction when they built their DA in 2000. It consists of four
>36.60° (~97 feet) towers with 9.40° tophats consisting of 6
>horizontal elements. I believe the towers are fed as folded unipoles.
>
>
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