Scott Gordon wrote:
Any one have any detailed plans on 40 Meter Half Square antenna? I
calculated 33.33 feet on verticals and 68.33 on horizontal.

Near enough for a start - trim for resonance, as Cecil says.

I was thinking
of feeding it at the corner, I think it will be close to 50 ohms.

That's where it must be fed. Anywhere else, and it won't act as a
half-square (except the other top corner of course).

Now
center should go to the vertical and shield to horizontal....

That shouldn't matter at all.... but you really need a choke balun to
make *sure* of that. Coil up the first few feet of your feedline to make
a common-mode choke at the feedpoint (eg 10ft of RG-58 feedline, wound
into a flat coil of 6 turns). Then run the rest of the feedline away
from either leg of the antenna for as far as possible.

If you use that choke, then it won't matter which way around you connect
the centre and the shield. If you don't, then your antenna will consist
of the half-square *plus* the outer of your coax... which was probably
not what you intended.

Another
question is the far end vertical is it connected or seperated from the
horizontal connection?

Connected.


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek