From: "valerio gabbani" <valerio@dii.unisi.it>
To: rsgb_lf_group@blacksheep.org
Date: Thu, 13 Feb 2003 19:51:18 +0100
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Subject: Re: LF: EH-Antenna
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On Thursday 13 February 2003 15:44, bernd grupe wrote:
> Hi all,
> for one who is interested in getting more practical information, there is a
> URL:
>
> http://www.qsl.net/iz7ath/web/home_eng.htm
>
> where you can find some hints to build this antenna for 160 m. And
> furthermore a lot of results in doing qsos with this type of
> lowband-antenna. Talino (iz7ath) suggests 6m long cylindres/2m diameter for
> 137 kHz. If the loss of efficiency will be abt. 10dB  compared to a
> fullsize-dipol(measured at 1.8MHz!) then it would be a hope for all lowfers
> with large aereas and tolerant neighborhood :-)) 73 Bernd, DF8ZR

Bernd and all,
I was interested in EH antenna for 137 kHz some time ago, because i haven't a 
tower 30mt high or more.
I think EH fans claims are simply fool.
Here in Italy there is great interest around EH antenna for 40mt, 20mt and 
also for 6mt, someone proposed (for joke) also a version for 10 Ghz only 3mm 
length and 1mm diameter.
EH antenna radiate some power and it is possible to do QSO(mainly on 40-20 
mt), but cable is part of the antenna, so no new phenomenon, only the old 
one.
I know Talino's work, but its results seems to confirm the important role of 
the cable.
So if you cannot go high, you can hope only to obtain an efficiency around 
0.1%.

'73 IK5ZPV (Valerio)