m II wrote:
HFguy wrote:


I did the whip antenna matching transformer (balun) mod' to my 398. It
really helped to make it more sensitive on the whip. I also removed the
tuning knob detent mechanism to make the knob turn smoothly.



Is there any problem with maintaining a setting? I was wondering whether
there is sufficient friction remaining to keep the knob in a particular
place.



mike

I haven't noticed any problem with the tuning knob moving on it's own,
since I defeated the detent system. It turns much smoother but still has
some resistance. I suppose it could be accidentally moved if it came in
contact with something. This might happen when the receiver is laying
down on a soft cushioned surface like some furniture but I wouldn't be
concerned about it. The tuning knob has a much better feel without the
detents.