Re: LF: SAQ nil

["Dick Rollema" <d.w.rollema@freeler.nl>]

To All from PA0SE


> valerio gabbani wrote:
> > Alberto,
> > Thanks for the info, did you know also the antenna system used ?
> > '73, Valerio IK5ZPV
You
can find info (in Swedish)  on the Grimeton station SAQ, including a
photograph of the antenna system, at the following URL:

www.alexander.n.se

The antenna consists of  six 127m high vertical top  fed
radiators in line, each with its own earth tuning coil and earth
electrode. This decreases the earth loss because each earth electrode
carries a current I/N, in which I is the total earth current and N the
number of radiators = number of earth electrodes. The gain results from
the fact that the total earth loss is  N times the loss around 
each electrode  but the loss at each electrode decreases at (I/N)
squared. The system was invented by Alexanderson, also designer of the
alternator used at Grimeton.

73, Dick, PA0SE