[DX] dipole vs horiz. loop for low band DXing

Mon, 04 Nov 2002 18:30:09 -0600

Or better yet build a vertical delta loop for about $5 US.  See Low Band
Dxing by ON5UN.

Don
W0VM

[email protected] wrote:

> ANY horizontally polarized antenna at 1/4 Wavelength (WL)
> or less in height will radiate primarily straight UP.
>
> If you cannot place a horizontally polarized antenna
> for 40M at least 50 ft high, you would be better off
> with a GOOD  VERTICAL  antenna which also requires
> at least 30 radials, preferably 1/4 WL long.
>
> See any good Antenna Book such as the ARRL
> Antenna Handbook for ground reflection coefficents
> vs height and plots of horizontally polarized antenna
> patterns in the vertical plane.
>
> I like the MFJ 1792 80 / 40 vertical which is full size
> on 40M with a TOP isolating / loading coil and top hat
> for 80M.  It is reasonably priced around $160.
>
> BASE Loaded verticals (HF2V, HF6V) etc
> have the LEAST efficient loading for 80M.
>
> Tom  N4KG  (RF Engineer, DXer, Contester)
>
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