I know this isn't an answer to the basic premise of the raised question,
but let me throw this out.
1. 43 ft. verticals that are ground mounted require a large, good ground
system.
2. Depending on the band you are operating, the assumption of a high
VSWR is correct.
3. High VSWRs on coax are a losing proposition.
I use an 18' elevated vertical with an elevated radial system and a
tuner at the base of the vertical. The reasons I do this are:
1. Elevated radial systems need not be as extensive as ground based
radial systems; I have 4 radials, two 9 footers and two 19 footers.
2. 18 ft. is as high as I could get and still have my radial system
close to where I wanted it; the tree was too low.
3. A tuner at the base of the vertical allows me to run coax all the way
with an VSWR less than 1.5:1 on all bands.
The question now is how does it play or compare. The answer is I don't
have an absolute answer, but from what I see using WSPR at 1.5 Watts, it
seems to play well. I only have only had the system up a few weeks and
don't yet have enough experience with it to be more definitive. My gut
tells me that this is a better overall system than expensive, commercial
verticals. Almost everything is available from Home Depot except the
tuner and a few insulators. I hope this has triggered some curiosity.
73,
Barry
K3NDM
On 9/2/2013 7:10 PM, Jim Brown wrote:
43 ft verticals have become a popular antenna, and while they have
some strong points, they present a very high SWR on most bands, so
they require a serious tuner to get them to load.
I'd like to know of any stations using a 43 Ft vertical as a
multi-band antenna using nothing but an Elecraft antenna tuner for
matching -- that is, no "baluns", transformers, loading coils, or
additional matching networks. I'd like to know the bands on which you
are able to match it well enough to get full power from the rig (or
the power amp). I'd like to know if the tuner is located at the base
of the antenna, or, if in the shack, the length of feedline between
antenna and tuner.
Thanks and 73, Jim K9YC
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
