[SCCC] WTB- 40m rotatable dipole

[Glenn Rattmann]

Tim,
If you are looking for a little project, you could consider starting 
with a Cushcraft WARC dipole (12, 17, and 30m, with traps).  Add a 
weather-box at the feedpoint for switching-in center-load coils to 
each side of the dipole and tune it for 40m resonance.  I've heard of 
a guy or two who have done this, or similar.

If you already have a 10-15-20m tribander Yagi on this tower, then 
you could get the WARC bands this way, too.  If you already have 
something like a SteppIR Yagi up there for 10-20m, then the Cushcraft 
method isn't so attractive because you already have the 12-17m bands 
covered anyway.

If you don't care about 12-17, you could design/build a full-size 30m 
dipole using DXE 6ft lengths of tubing (very cheap and free 
shipping).  Probably around 46ft long and very efficient.  Then add 
the coil-switching box in the middle to get 40m coverage.  The 
overall length will be similar to the shorty-forty element lengths 
that are out there commercially.

73, Glenn K6NA

At 10:55 PM 2/12/2015, you wrote:
>Looking to buy a shorty 40. If you have one, let me know. Would be even
>better if it was a 40/30 dipole or a Force 12 240/230 2el beam.
>
>
>
>Tim
>
>K6TW
>
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