This does however, slightly narrow the bandwidth of the antenna if the coax
loss is small because as you move away from the perfect 1/2 wave point the
coax will start to show SWR. For monobanders this usually isn't a problem,
but it may be for some tribanders.
This will also work on all the non-WARC bands. For Tribanders, if you cut
the coax for 1/2 wave on 20 or 40 meters, make sure you tweak it for
multiple of 10 meters, which will be a more critical measurement. The rest
of the in-between bands should fall into place.
>>> You can easily make the 75 ohm coax essentially "invisible" in a
monoband application by using some RG-11 to extend the total length of the
75 ohm feedline to any multiple of 1/2 wavelength.
Jim - KR9U
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