That is why I said well designed, and I know there are many out there , that
are not...At one of my former sites, we had a couple lease towers.As part of
the lease agreement all transmitters were required to have filters and
isolators. We had about 60 or 70 percent compliance. All I could do was
threaten, because in reality I would have been hard pressed to explain to
the station owner why I threw out a paying customer, for not obeying my
rules when his rent was always on time.
W6RD
----- Original Message -----
From: "Ken Brown" <ken.d.brown@hawaiiantel.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Saturday, May 17, 2008 6:17 PM
Subject: Re: [TenTec] 95% Shield
One more point, any well designed broadcast or commercial transmitter
installation is going to include some type of output filtering in the
transmission line, or at least some form of interference reduction
device.
whether it be a filter,isolator or whatever. It is just good engineering
practice.
Too bad not all installations use good engineering practice. In my
experience paging system transmitters we're the most likely ones to not
use isolators or filter cavities. I guess the reason is that they don't
need to receive, at least not at any frequency their spurs bother, so
they don't care to spend the money or lose a few tenths of a dB in TX
signal strength for the benefit of their neighbors on the same mountain
who do have sensitive receivers.
DE N6KB
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