[Elecraft] K2 Voltage Display

[Gordon Gibson]

Hi All

How accurate should the voltage display be ?

The display on my K2 #2746 appears to read .7v low,  since my K2 was
completed last August I have only operated it from the shack, and never gave
the voltage display much thought, however I intend to go /p this Spring and
Summer so have been getting ready for that, and charged up my Hitachi 12v
6.5A battery, it was when I connected to the battery I realised the Battery
Volts were different to the K2 Display, so I checked the voltage of my Drae
Power Supply and it too is reading .7v higher than the K2 Display!

okay .7v is not a lot but I would like to use the display to keep an eye on
my battery when out /p at the moment my Battery reads 12.3v and the K2
display 11.6v.

So is the Display only relative ? or do I need to change the values of the
Potential Divider on the control board, i.e. R9, R10 ? in order to get the
display to read my true battery voltage ?

73 de Gordon G3ZFZ

g3zfz@worldonline.co.uk