> 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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