Graeme, you don’t have an email address on QRZ.COM so I’m posting this here. I just want to let you know that when I worked you yesterday on 17M ssb, I was up on W1/MB-023. I was running KX3 into EFHW - curious what you were running?
Just noticed this section in the categories didn’t get an alert for it on my profile. For the activation on the 14/09/2014 from G/NP003 Burnhope SeatI was running FT817 w4rt filters and DSP fitted along with a 44ft doublet antenna, zm2 ATU. There was a lot of QSB on 17m at my end, but just managed to pick you out in the noise thought I was dreaming at first.
I only decided on a doublet at the last minute as I had some DX lite wire left over I had purchased for my 17m end fed and decided to see what all the excitement is with these doublets.
On the 21/09/2014 from Yarlside G/NP019 I was using the same set up but the antenna was a G Whip resonant 17m EFHWA replaced the heavy kevlar wire with the DX lite wire. The first time I have managed to work 4 dx stations in one day never mind 20 minutes.
The 44ft doublet has always been a top performing antenna for me on 40-10M. My current version is fed with twisted pair wire that I salvaged from hi-speed CAT5/CAT6 cable after tearing off the outer jacket. The hi speed wire has a very low loss dielectric and creates a lightweight low loss inexpensive feedline.
Be aware that if you go to an 88ft doublet, the radiation pattern on 17-10M will no longer be broadside bi-lobed. That’s part of the magic of the 44ft doublet - it’s broadside on all bands 40-10M, with more gain and narrower lobes as you progressively go up through 10M.