28MHz has been in good shape recently, so I wanted to go out portable and try my end fed half wave parallel tuned circuit coupler as I have not tried it on 10m before. The band was in good shape (unlike the weather) and it seemed to work well. I managed to work some good DX whilst I was there, the log can be seen below.
I also took a little video of me working VA3AQB – Alan in Canada. The coupler seemed to work well on 10m and with a bit more bandwidth than other bands, perhaps because very little capacitance was needed. I’m enjoying making the most of the higher bands whilst they are open! John.
I was operating portable on 12m (21MHz) today. It’s a band which I have hardly ever used, so I cut a half wave length of wire and used my End Fed Half Wave Coupler to match it at the base of the fibreglass pole. Conditions seemed good and I was able to work Chicago, Massachusetts, California, New York and Texas in a short time. Below is a short video and photo of the setup.
I went out for a little bit of /P operating this afternoon for just over an hour as the weather was OK. Had a nice chat on 40m with some UK stations using the end fed half wave set up as a kind of sloper. The end was up 8m on a fibreglass pole just resting against a tree, and the feed end came down to a low tree branch and then into the coupler. It seemed to perform really well on TX and RX. Below is a little clip recorded by Dave M0TAZ. Running 100w from the Icom IC-7200.
I went down to the river Thames a couple of mile from home today for some portable operation and some experimenting with an end fed half wave antenna. I recently built a Parallel tuned coupler for feeding end fed half waves from 7-30MHz and this was tested on a few bands. I wanted to try 15m, but the band was full of contest stations due to the Scandinavian contest, so I cut a piece of wire for a 17m vertical. Below is some video took by Dave M0TAZ of me working Chris SM0OWX on 18MHz.
I have used the coupler on a few different bands now in various configurations with good results. I shall add a post with more results after some more tests and fine tuning soon. Here is a photo of the inside of the unit. 73 John.