After stumbeling across the Hompage of DF5JL, I have deciced to give the Solarcon A-99 (former sold as Antron A-99) a try. However on the homepage of Markus, I have found an antenna of identical construction that should be of better build quality at a quite decent price.

Usage of the antenmne should be 10m, 12m and 15m, for the other bands I am very satisfied with my delta loop.

I have mounted it on a 6m high aluminium mast.

Tuning rings allow to move the SWR around a bit. Since the result depends on the kind of counterpoise and coax routing, no general conclusions can be made.

I have moved them to the upper most position and got the following results (measured after 15m high quality coax):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On 10m, 12m and 15m, the internal tuner of my ICOM IC-9100 can easily match the antenna.

Operation results so far after having a few QSOs on FT8:

10m:

12m:

15m:

Next test will be the ARRL 10m Contest.

 

 

Published on  December 8th, 2024