[RFI] IN-band Filters
jim at audiosystemsgroup.com
Tue Nov 7 19:30:40 EST 2006
On Tue, 7 Nov 2006 17:00:14 -0800 (PST), Bryan Swadener wrote:
>We have use of a site that will allow up to about 1000' separation.
That is by far your best solution.
As the architect of some competitively scoring FD stations, I agree
with others who have noted that stubs dont have nearly enough Q,
and that heroic measures are needed to achieve even a little in-band
Your choice of 100 watt radios like the K2 that are relatively clean
and have very good receivers is the right approach. TS850s make
good FD radios too. Avoid cheap radios (FT100, IC706, IC746, etc.)
like the plague. Their receivers overload easily, and their
transmitters are broad as a barndoor too.
Likewise, having high flat dipoles for stations on the same band at
right angles to each other helps a bit. So do baluns, IF they are
good enough to take the transmission line out of the picture. But
dont expect much help from low dipoles or inverted Vees.
Jim Brown K9YC
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