[Elecraft] OCF antennas and baluns??

[Charles Greene]

Phil,

I don;know why not.  The impedance of a 40/20/10 OCF antenna is around 200 
ohms, which works nicely with a 4:1 balun.  I have one, and also one for 
30/15.  Theoretically, the OCF has a high impedance on non-harmonically 
related frequencies.

Check Cebik's web site www.cebik.com for the impedance of an OCF antenna as 
a function of height.

At 07:06 PM 12/19/2003, Phil Wheeler wrote:


>Stuart Rohre wrote:
>
>>The last Bill Orr, W6SAI, Antenna Handbook by CQ Publishing Co. has a
>>complete workup on the OCF and various versions of it.
>>
>>I have also seen antenna patterns from an OCF, (somewhere I think).  Perhaps
>>check the L. B. Cebik antenna site, www.cebik.com
>>
>>Remember the true old Windom design was a single wire feed, and thus surely
>>radiated from both the wire feeder and the flat top.   He was attempting to
>>find a tap setting on the flat top that would more easily load on multibands
>>with the old transmitters of his day.
>>
>
>I had great luck with a Windom (135 ft and gerrymandered at 10-15 ft high) 
>from Walla Walla (SE  WA) in 1954-1955.  Worked the world on 80 CW with 
>75-100 W (DC input) -- including a couple of 599 reports (QSL verified) 
>from South Africa.  A much maligned antenna, but it worked well for me.
>
>I wonder if the KX1 would load a (40 m = 67 ft) Windom on 40 and 20?
>
>73, Phil
>

73, Chas,  W1CG
K2 462b, 3571