KAM.1

Subject: KAM Voltage Problem

I received a new KAM for Christmas and when I hooked it up it was very weird
acting.  I had trouble getting my call in it, wrong letters would show up
the keyboard was sluggish, I had to turn the 8bitconv off and change line
settings on the terminal program to make a half way contact.  I called the
factory and excellent help was immediately given.  The problem was too much
voltage on the RS 232 Serial Line. It likes to see 12 volts.  The new wall
supplies were causing the problem.  The older 12 volt supplies were 300 ma
the new supplies are 500 ma and the KAM uses about 300 ma with the voltage
being about 14.5 volts going into the KAM.  I measured the DVE supply, a
12 volt 500 ma and it was putting out over 19 volts unloaded, about 14.27 to
14.7 volts into the KAM on.  It was suggested I clip the plug off the wall
supply and tye it to the stations supply.  Since I run 13.8 volts there I
instead inserted a Radio Shack 12 volt regulator IC in series near the KAM
with a .3 ufd cap on the input and output as suggested and PRESTO all
problems solved.  I was able to turn the 8bitconv on, use 1200 baud, no
parity, 8bits with 1 stop bit, all as suggested and everything is working
great.  I must say the first two evening I had my doubts, but now I in
total love with the KAM and the help from Kantronics is fast and friendly.
Happy New Year....Dave K0RWM-7  Nebraska City, NE and can be reached at
K0BOY BBS in Omaha, which automatically forwards to my mail box
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