Hello All,
I know this subject was presented here several times and I checked
achives of Topband Reflector but I still have a few doubts.
I'v decided to build another QTH for more difficult DXs /Pacific for us/ in my
Parents-in-Law
apple orchard /quite big...200m X 1 km/.That's why my questions...
I'd like to build 30 m high Vertical similar to W7LR project.
Bob sent me a lot of details of his antenna /THANK YOU VERY MUCH for help Bob!/.
My questions are:
1.I'd like to have top loading using a "hat" made from 4 wires, but what is is
better to use
at the bottom to match the coax...L network or Linear Loading which one is a
better one?
2.How to tune such a vertical for 80m,using that L network at the bottom or
install at the top
a trap isolating a hat from verical part /on 80m/? I'm just not sure if such
a "hat" is changing
a radiating characteristic of vertical.
3.Still I'm not sure with radials,what is better to use /for both 80 and
160m/,I know the best
solution is to have 120 radials each 40m long but I will able to install them
only temporary,so
having 800m wire :
a/20 X 40m
b/26 X 30m
c/40 X 20m
There is a very good ground.
73 GL
Rys
SP5EWY
rtym@ippt.gov.pl
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