Experiments & Fun With Simon M0YKS
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17m open to Japan - JH1MDJ
I awoke this morning to a great start as I got straight into Japan working 5x5 signals both ways with japanese station JH1MDJ up on 17 m just now.
The exact frequency was 18.156 and my Cushcraft beam heading was at 30 degrees.
I was running 400 watts from my Russian amplifier.
Let's hope this is a sign of improving conditions. It's been a long time since I heard Japan at least 2 years. This week radio conditions have been interesting, I worked Liberia and Belize taking my DXCC total up to 133 DXCC as M0YKS (last 5 years).
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 sli…
Over the past 12 months the display on my Yaesu FT-857 has developed the "zebra stripes" problem which after looking in to it, this has probably happened because of high temperature from the sunlight entering into my vehicle. The best way to resolve the fault is to install a new board into the front panel which I carried out last night with successful results.
I began by contacting YAESU UK who came straight back with the cost and part numbers which was very reasonable as the total cost for a complete brand new panel and new AF/SQ VR control was under £140. The panel has a screen and selector control so I thought I would renew the AF/SQ control at the same time.
The staff at YAESU UK are extremely knowledgeable and very helpful indeed, I gained a few tips from one of the gentleman at YAESU UK regarding the task I was about to undergo. The AF/SQ VR required careful soldering as the terminals are very tiny but apart from that the job was not too difficult and I managed to ge…