5) On all the units I had, the 29?+ 9 turn L401 (as per current manual), the turns had to be fairly much fully spread out, to get the 20, 30 and 40m BPF peaks correct. It may even be worth using 29?+ 8 turns for L401. We'll see.?
Hi Hans. This is great information to have.? Thank you.? One question, however.? The photo in the manual shows the 9 turns to be spread out but the 19 turns to be not so spread out.? Do you mean that you had to spread out both sections?? I found that when I spread out the 19 turns, the RF sweeps got worse (but I was battling a second simultaneous issue at the time).? Just to be clear, do you mean to spread out both or just the 9 turns?
I had to spread out the 9 turns a lot, I actually removed one turn; the 19 turns weren't fully spread out, I adjusted them to put the peak on the 20m band. I think everyone has a different winding style and tightness, and there are component tolerances too.?
