Full Size Delta Loop for 20M
I came across a simple delta loop design courtesy of dxzone found on the net some time ago and have been planning to give it a go for a while. This weekend I had a couple of hours spare, so I decided to give it a go using some 2mm multi strand wire cable, a dipole centre and a mixture of 75 ohm and 50 ohm coaxial cable. The delta loop is supposed to be resonant on 20 meters but I found it to be a little high so at present I am tuning the Loop with my mfj-969 which copes extremely well. The resonant frequency is 13.2 MHz at the moment so the next chance I get, I shall shorten the overall length making sure that each of the three sides are still equal in length, and hopefully adjusting the antenna for maximum performance ATU free for 14.2 MHz. I believe the miscalculation in the resonant length is probably down to the fact that my wire is covered in the plastic sleeving from the manufacturer which always effects the swr as I have noticed in past experiments with dipoles you always get sl...
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this is nash JN4VWH from Japan.
In March, we are...Spring comes closer there, also your Home QTH?
In my Home QTH, we have sometimes 15 or over 15 degrees in day time at this (number) 4 area of Japan, now.
It becomes be possible working with America over the Pacific, about 10000km on 15m SSB, day by day.
Have a nice Spring Days for all of your family, from Japan. nash