Multiband Vertcal Antenna?
"Deni foxfiveVJC" skrev i meddelandet
...
Given that I can only have one antenna and it has to be a single vertical,
not exceeding 45 feet, I'm seeking advice on the best way to achieve
this.
The feed point must be at at ground level and will be 100 Metres away
fed with low loss coaxial cable.
I can lay down a good radial system and ground rod at the feed point.
I'd like to use the antenna on all HF bands, or as many as possible from
1.8 MHz up.
My choices seem to be,
1. A commercial HF Multiband antenna eg, HF9V
or
2. A vertical wire supported by a 40'-45' fiberglass pole with an auto ATU
at the base, eg SG230.
Q . Which way to go? Naturally I'd like to achieve some low angle
radiation on some bands.
I'd appreciate any advice on which would be the most efficient system
given my constraints.
Anything else I haven't thought of ?
73, F5VJC
Hi, I have used a simular setup as nr 2. I use a Chinese CG-2000 automatic
tuner and it works OK on all HF bands. Gives you alot of options on how to
attach your wire. I have used glassfiber rods and also tried a more LW like
slanting of the wire. Can really be a flexible antenna. It's not as complex
as commercial multiband antennas.
It's critical to have a good RF ground but I live close to a lake so no
problem with the radials.....
Go for nr 2....
/ SM0FKI Ulf
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