[Elecraft] FW: PA problem FIX

[Carter W. Craigie]

Hi Ron ZL1TW (and to others who chimed in to help me!)

I think you have found the cause of my problems with the PA HOT message
upon turn-on!

I followed your instructions and found my tPA setting was at 2C.  I have
now changed it to 20C, my present room temperature (68F). That's a big
difference!

I am sure things will be better now!!!

Many thanks for your help, Ron!  And who says that the Internet has
ruined ham radio??!!  You are in New Zealand, yet you have helped
someone in Pennsylvania!  What a wonderful world you have demonstrated
this one can be!

73/72,

Carter Craigie N3AO
K2/100 S/N 678
K1 S/N 159 -----Original Message-----
From: Ron W [mailto:ron_w@clear.net.nz] 
Sent: Tuesday, May 13, 2003 5:51 AM
To: N3AO@comcast.net
Subject: Re: PA problem

Hi Carter,
               Regarding having the fan come on straight away and the PA
HOT
message.....take a look at the CAL/TPA temperature setting. I will bet
it
has "readjusted" itself to a high temperature instead of the ambient
temperature at turn on. I have that problem occasionally. (see page 45
of
the KPA100 manual "Temperature Calibration".)
Incidentally the "black capacitor" that is attached to the SO239
terminal is
actually a RF choke and it is there to divert static build up to ground.
If all else fails after resetting the temp reading the good old "456"
reset
usually ( Holding in the numbers 4,5,and 6 and turning the rig on
again.......then wait for the INFO232 message while the EPROM reloads
the
defaults, to go away) clears any problems associated with the MCU being
upset by static discharges or other "nasties". After that treatment you
have
to reload your filter parameters again and any other changes you have
made
to the basic menu.
My money would be on the TEMP setting having changed.....
Cheers.....Ron ZL1TW