[SixClub] 6 meter vertical

Fri, 27 Feb 2004 21:46:00 -0500

Guys,
During this whole discussion, I haven't seen a mention to radiation angle
(or angle of radiation) That's one of the reasons why verticals are not good
for DX.  I agree with the folks that mentioned polarization skewing or
shifting on stratosferic (SKIP) propagation.  It doesn't really matter
whether you are on USB, LSB, AM, FM or CW.  Similar polarization and a low
angle of radiation aid in long distance QSOs.

73,
Ricardo, W3/HK4BHA

----- Original Message ----- 
From: "Barry Bogart" <[email protected]>
To: <[email protected]>
Sent: Friday, February 27, 2004 7:07 PM
Subject: Re: [SixClub] 6 meter vertical

> I found this out when I worked the September VHF
> contest the same weekend I bought my Ranger 5054 in
> Seattle,. I was up on Snoqualamie Pass - must be 3000'
> or so. I connected the rig to my battery and a
> hamstick I had. But I could barely work anyone - even
> the guys in Seattle less than 50 miles away! I later
> realized it was because my hamstick was VERTICAL and I
> was using USB. I have the 25-watt Ranger BTW.
>
> However, last weekend I was on a mountaintop trying a
> sched with a friend out in the Valley East of
> Vancouver BC. I didn't hear him, but I did work a guy
> in Saltspring Island, about 50 miles away. This guy
> was on an 817 with a Miracle Whip, vertical. I was
> using a Tokyo Hypower HT - 2w, with a whip but I held
> mine horizontal for USB. After he mentioned his
> antenna, I asked if it was vertical. He said yes, so I
> swung mine up vertical as well. The result was a very
> significant DROP in his sig level - maybe 10db. I
> swung it back horizontal and he came right back 5/9.
> Any ideas why? Over only 50 miles, line of sight (I
> was at 4000'), cross-polarization should have kiiled
> us. Instead it was better.
>
> Anyone have an explanation?
>
> 73, Barry
> VE7VIE/KD7IGX
>
> --- Christopher Boone <[email protected]> wrote:
> > Not in skip mode because of so much polarization
> > skewing due to
> > reflections...but in local operations (out to a
> > couple of hundred miles
> > ground wave or local ducting), it DOES make a
> > difference...
> > Want to work the local FM guys on simplex? Horiz
> > won't cut it..
> > want to work a guy on SSB 200miles away? a vertical
> > won't do it if he is
> > on a horiz antenna..
> >
> > Chris
> > WB5ITT
> >
> > RJ Mattson wrote:
> >
> > > I thought antenna polarization was not a problem
> > on skip modes?
> > > bob...w2ami
> >
> > -- 
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> >
> >
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