50MHz

In the first weekend of june 2012, a group of members of our Radioclub PI4Z and Veron afd Noord- en Zuid Beveland, will take part in the fieldday operating under the callsign PI4NZB/P. 

As our fieldday location we choose the island "Dwars in de weg" (IOTA EU-146) 51.7360N  3.9320E, qth locator: JO11XR

As we want to do some experiments and hopefully make many QSO's on the 6m band (50MHz) during the fieldday, we of course need an antenna for 6m too. For logistic reasons (we need to transport the equipment by means of a small sail-yacht), all equipment is to be limited in size and weight. Thus we need a compact antenna which can be assembled on the spot.

After some research, I therefore have choosen a 2el yagi - 28Ohm version, by DK7ZB design. In the past several days I've assembled one from materials found in the scrapyard, for example old radials from an HF-logperiodic beam, a short piece of boom from an old 2m yagi and some clamps. The only parts bought were an electric junction box with warts and some stainless M5 threading and nuts.

 

Pictures showing the finished antenna and some construction details:

Finished 2el 50MHz 28Ohm DK7ZB by PE9GHZ

Detail of matching transformer connection

 

I've also constructed a simple open dipole for 4m (70MHz) in a similar but simpler way (no need for the 28-to-50Ohm match, SWR is 1:1.1-1.5 over a wide range.

 

Here are some pictures of the 50MHz (and other antenna's) used during our fieldday :

Gallery PI4Z - Fieldday PI4NZB/P 2012 

Gallery PI4Z - Fieldday PI4NZB/P 2012 on EU-146

 

The 2el 50MHz antenna is now installed in my modest telescopic antenna "tower" at my home qth. Using my Icom IC-706MKIIG I've successfully made quite a few Es contacts with it (see my Logbook).

 

Home made 3el 1,94m LFA 50MHz

 


Page modified by Eddy on 2012-09-03
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