[Elecraft] OT: Small Patio Vertical:

[Lynn & Cherie Hammond]

Julian (G4ILO) wrote:
> 
> > Well, Julian, please note that half wave verticals are as efficient as
> > horizontal half wave dipoles, and are not to be confused with short
> > verticals, or quarter wave verticals where half the antenna is missing
> > or
> > made up in the radials or ground plane of somewhat questionable
> > efficiency
> > with its close coupling to earth.  Not all verticals are lossy!
> 
> You may be right, but a half wave vertical didn't seem like the kind of
> thing Martin was contemplating.
> 
> > The MFJ and other small loops suffer from narrow bandwidth, and are some
> > S
> > units down in signal from half wave verticals, and even quarter wave
> > optimized verticals.
> 
> You're right about the narrow bandwidth, but I found the MFJ loop compared
> very favourably with a dipole on the higher bands, and so did QST when they
> reviewed a number of compact antennas several years back. I don't remember
> the issue date now, but ARRL members should be able to get hold of the
> review from the web site.
> 
> I don't think there is any advantage in using an antenna with low angle
> radiation when it is located close to buildings, which is the situation in
> any British suburban garden, and probably Martin's patio.
> 
> 73,
> --
> Julian, G4ILO. (RSGB, ARRL, G-QRP, K2 #392)
> G4ILO's Shack: http://www.qsl.net/g4ilo
> 

GOTTA PUT MY TWO CENTS IN ON VERTICALS. OF THE COUNTRIES I HAVE WORKED
WITH QRP, 166 WERE MADE WITH A CUSHCRAFT R7 VERTICAL - AND VERY QUICKLY
AT THAT. THEY HAVE NEWER VERSIONS, AND I SUSPECT THE 20 METER AND HIGHER
VERSION WOULD DO WELL ON A ROOFTOP.
73 LYNN KL7IKV
> _______________________________________________
> Elecraft mailing list: Elecraft@mailman.qth.net
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see: http://mailman.qth.net/mailman/listinfo/elecraft
> Postings must be plain text (no HTML or attachments).
> Elecraft Web Page: http://www.elecraft.com