[Elecraft] Cal AT100 SWR bridge

[Rich McCabe]

Is there any tricks (or improved techniques) on adjusting the SWR bridge in 
the tuner? I just finished a tuner and everything checked out and calibrated 
very easy. But I may have a SWR that agrees on my Daiwa in the line 16" away 
or it may be as high as 4:1 on some bands even when the tuner says it is 
flat or near flat.

I have adjusted C31 for minimum reading (.01 volts) and the null is small so 
I really cant center it in the null easily.

I also had a problem with oscillations on 40 meters and I think I read 
somewhere it could be a grounding issue. So I am going to go back and do 
some more sanding.

Any tips or comments.

Thanks,

Rich