Most any wire you put up can be made to radiate. The problem is
matching the feedpoint to the feedline. If you want to use coax for the
feedline, you must provide a proper matching network at the antenna
(balun or otherwise). Open wire line can be used with a matching
network in the shack.
If you are transmitting at 100 watts (or 10), all that power will go
into the radiator and be radiated. If you are concerned about how
effective that radiation will be consult the antenna books and look at
the elevation and azimuth radiation patterns to obtain your answers.
L.B. Cebik (SK) did a lot of antenna radiation models.
73,
Don W3FPR
On 3/2/2020 2:13 PM, Fred Jensen wrote:
Folks these days seem to be looking for the perfect [magic?] antenna and
are reluctant to just try a basic "non-buried conductor" unless it comes
with the magic guarantee first. I'm somewhat constrained by our HOA's
Architectural Review Committee [OK, nothing visible]. My 135' end-fed
wire along the wooden fence works surprisingly well at 100 W considering
it is just about eye level all the way. As good as 5 over 5 over 5 at
100' on 40? Not quite, but I can make Q's on any open band anytime I
want including DXpeditions where I wait a few days until the bruhaha has
settled down some.
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