Michael,

Just a couple of thoughts:   You say that the auto tuner in the 570 
tunes it  fine.  The Kenwood is going to back down power  when the auto 
tuner is tuning.   What happens when you increase power to 100 watts? 
You said you are tuning the manual tuner at 100 watts, and while that 
seems a bit high to me, to each his own.   Just wondering if you see SWR 
fluctuations  when the 570 is at full power.

Also since you have to jiggle the roller inductor, just wondering if it 
needs to be cleaned?   While I have no experience with your tuner, the 
Palstar manual tuner I have has  a silver plated roller inductor that 
will tarnish and cause problems.  Palstar recommends  cleaning with 
alcohol  every 6 months or so.  Not sure how old your tuner is, or if 
there is a recommended cleaning procedure, but you may want to check 
that out.    Don't know how close you are to the ocean, or salt air, but 
I guess that could hasten the tarnish or oxidation problem on a silver 
plated inductor.

73, Steve KW3A

On 11/10/2013 1:58 PM, Michael Ryan wrote:
> Hi John:=20
>
> Nope connected the vertically directly to the 570 and it tuned up fine =
> on that troubled freq.=20
> I got my XYL to read the meter for me and the SWR was around 1.5/1, a =
> safe level anyway.=20
> I wanted to try the manual tuner on the direct setting but wasn't really =
> sure how to use the TW-1 in that configuration.=20
> So to some up, with the MFJ-989 manual tuner in line, this is the setup.=20=
>
> Patch cable from the FT-102's antenna jack to the Radio connector on the =
> TW-1. TW-1's antenna connector to the Transmitter connector on the back =
> of the MFJ-989. Dummy load connected to the dummy load jack and the =
> antenna connected to the coax 1 jack.=20
> Tuning up the 102 into the dummy load is perfect. I then reduce the =
> power down to about 75/80W or so, then switch to coax 1.=20
> This is when the problem occurs. I tune with about 75/80w, get things =
> down to flat but the tuned state won't stay flat.=20
> I have to repeatedly readjust the roller inductor knob back and forth =
> about a 10DG turn either clock wise or counter to keep the SWR  flat but =
> again it won't stay there.=20
> I don't think its my rig because on the dummy load, there's no flux and =
> all the settings on the 102 don't change. I only change the ATU from the =
> DL to coax 1.=20
> I didn't try the coax 2 jack although maybe I should the next time I'm =
> out to the cottage. That's what I suspect.=20
> There's something happening there.=20
>
> Michael=20
>
>
>