I thank those that responded to my suggestion of a possible 80 meter
steppir. The difficulties that loaded (linear or coil) elements would
result never occurred to me. Perhaps that was because Force12 used to
have a shortened element 80/40 meter yagi using linear loaded
wires in there catalog.
I wish I could thank those that responded to my other suggestion of a
possible 2 element steppir as a modification of the already existing 4
element 40 thru 6 meter steppir yagi. Not one response, yet there were
8 postings concerning the price (~$15/20) of a 500 foot roll of wire.
Unbelievable! Maybe my suggestion was inadequately expressed?
I assume that all Towertalkians are familiar with the Steppir yagi
design, but maybe not their Monster model. It is a huge Yagi. Huge in
price, weight, windload, and difficult( ?) erecting on the tower. But
it is also huge in directivity gain, 40 thru 10 meter coverage with low
SWR.
Although some might argue that a 2 element yagi is better for some
contesting because of the wider azimuth angle gain, I suspect that most
would rather have the 4 element if their tower and pocketbook could
accommodate it?
For the rest of us, my proposed 2 element would have the weight and
windload specs that would allow it to be installed on the heavier
duty crankup towers and maybe even on a steel Martin tower and Hazer.
Although the directivity gain would be less, it would still be
worthwhile considering the inclusion of the 40, 30 meter bands along
with shortwave broadcasting for those interested. The price would also
make it more affordable. Perhaps most important the 2 element yagi
could be easily installed on the tower by tilting the tower down and
rotating the boom 180 degrees to install the elements while standing on
the ground--or lowering the Hazer. No climbing towers, stepladders,
cranes, etc.
Have I totally misjudged Towertalkians interest?
k7puc
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|