[TowerTalk] F-12 340N question

[Grant Saviers]

You might consider replacing the rivets on general principles. My 
EF-180C, which had been around for a while before I bought it, had about 
30% of the rivets loose, a few missing, and the remainder ok. I drilled 
out all of them and replaced them with cross bolted machine screws of an 
appropriate diameter and spacing.

Grant KZ1W


On 6/8/2013 6:33 AM, Jim Thomson wrote:
> I have a F-12  340N.   Manual claims you can shift the ele  resonance points  by adjusting the eles.   6 inchs  per side = 100 khz.
>
> Now do they mean tweak the .375 inch tips.... OR do they mean  tweak the adjustable linear loading rods ????   The tips are riveted.
> It would make a lot more sense to tweak the LL rods..and leave the tips alone.   Makes more sense to me to make the ele max length
> and use LESS LL  if you want to move the freq up higher in the band.
>
> Does anybody have experience with this..or know the answer ?   The new owner of F12  doesn’t  know either.
>
> tnx in advance.......... Jim  VE7RF
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