On Tue, 01 Jan 2002 Chris BONDE <ve7hcb@rac.ca> writes:
>
> Tom:
>
> From what I have read I agree with you.
> However, if you modify the low above ground 75m antenna from a flat
> top to an inverted V then, I think that the antenna radiates similar
to a
> vertical.
WRONG. An inverted vee is perdominantly
horizontally polarized. The lower the ends are,
the higher the GROUND LOSSES. N4KG
> I have a loaded dipole (total length about the same as 40m dipole)
> with the apex 21ft above the ground, ends about 15ft, oriented
> about NE to SW. Where I am, Alaska is broadside of my antenna.
With an apex of only 21 ft, most of the radiation is
straight up or at very high angles which makes
it appear to be omnidirectional. That basically
holds true up to 1/4 WL high which is 70 ft on 80M.
To see much directivity with a dipole or inverted
vee on 80M, the apex needs to be 100 ft or more.
Tom N4KG
> I have been told numerous times that I 'always boom' into AK.
> I have worked about 4 different station there including a QRP10.
> Now the other broadside would be to the US East Coast.
> I have worked WV, MD, DE FL etc. Off the ends I have worked
> CA, HI, & ON QU. My power is only 100w SB on 75m.
I know a few people who have worked DXCC on 80M
with very low inverted vee's (35 ft or less). That
doesn't make it a good DX antenna. In this case,
higher IS better. N4KG
>
> I do not know but I tried what I had and it seems to work. Over a
> year I also WASed.
>
> Chris opr VE7HCB
>
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