I was having a problem with my new LDG AT-100PRO
autotuner - If I went above 50w FM on 10 meters, The
tuner's CPU would "crash". Powering the tuner off and on
again would usually fix it but sometimes I'd have to re-
program some of the settings.

I am trying to tune a 40m dipole that has this feed arraingment:

Rig/SWR Bridge/Switch/Tuner/RG58 (25')/RG58 coil (12
turns @ 5-1/2" dia/450 ohm ladder line (50')/antenna

Thinking I had RF in the shack, I went to Radio Shack &
bought $21 worth of ferrite chokes. I put a coaxial choke
on the input to the tuner and another on the output. I put a
snap on (square) choke on the feedline going from the rig to
the swr bridge and another on the power cable to the rig.

I tried many setups including putting chokes on the tuner's
power cable and ended up with the above setup working
the best.

Now (finally!) to my questions:

1) How good are radio shack chokes?
2) I was only able to get 4 turns around the feedline's choke
- is that enough?
3) Am I just messing too much around trying to get a 40m
dipole to tune on 10m?
4) Would I do better to add a balun and run the 450 ohm
ladder line direct to the tuner?

--
73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055,
List Owner, Yahoo! E-groups:
VX-2R & FT-857