rickbras at airmail.net
Sun May 6 17:39:36 EDT 2007
Cool! That's basically what the MK-160 (not the coil) option does. I think
the wire for the option is a little over 100 feet, but I might be able to go
split the wires due to space like you suggested. I may have more questions
about the shunt feed and how you think it might affect the other bands.
On Behalf Of Bry Carling
If I wanted to use the Hy-Tower on 160m at 1500 w p.e.p.
there could be two alternative choices:
1) I would just leave off that coil and add a top section as a
capacity hat to increase the effective length of the radiator to
where it can reach 2 Mega-sickles. You could experiment with a
horizontal wire or two run off the top horizontally if you have
a little room. I would start with one 50 foot wire or two 25 foot wires.
Almost any angle would be fine.
2) You could easily shunt feed the tower. I have done that with a
60 foot tall Rohn 25G Tower and it worked extremely well for me.
Towers and Florida weather don't mix well, so I don't do that kind
of thing now! Just use a big variable cap to set up your shunt feed.
I love that scheme. It would still give your antenna a very
small footprint and let you run QRO.
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