[Kenwood] SM-220 Display too small

[k5fte_ech@webtv.net]

Greetings All,

I have an SM-220 which displays a 1/4 inch "Christmas Tree" at 100 watts
(varified output). Attenuator reduces it smaller from that point. All
functions work perfect. I have a normal Trapizoid when amp is on line (4
coax lines hooked up)  It almost seems like the scope was set up to run
3+KW because the screen has plenty of vertical room left with 1100 watts
from my TL-922A.
Any help out there?? Is there a calibration adjustment for RF vertical
display??

Thank and 73,

Earl, K5FTE