J49WI
IOTA DxPedition to Crete Island, EU-015

The Antenna Tuning

I got the antenna from IK4PNE, Paolo, who answer my request on the 425DXN reflector.
I was looking for a good multiband vertical antenna, easy to mount, possibly without the need of radials, and...cheap!
The R7 was the right choice at the end and Paolo was very kind to bring it to me to Milano !

Assembling the R7        The tuning site

The assembly of the R7 was a careful measure of all the dimensions: an almost useless activity, since I had to resize all the settings a number of times.
The antenna has been put on a mast, up about 2.5 m above the ground and, at the end of three tuning sessions, the result was quite good. Unfortunately the antenna behaviour, when on Crete, was quite different and I had to tune it again.
At least all that work was not in vain: in fact I gained a lot of knowledge about the R7 and the tuning, on the bungalow roof, was quite easy.

Bob, I2WIJ/J49WI
Go Back
Go to Main Page

Updated on 31-Aug-99
Copyright © Roberto SORO - I2WIJ
All the informations and images cannot be modified but can be reused, without any prior authorization, providing the source is always quoted.