[Elecraft] Config: ADC REF (revisited

[Robin Diane Goldstein]

wondering what this means:

with the latest beta firmware i measured the voltage across ACC pin 2 
and ground and got 4.95v on my dmm...  i then set that number into 
the Config:ADC REF setting.

my K3 now shows the supply voltage as being 13.6 volts, but when i 
measure the supply at the output of my PS it shows 13.76...  the 
cable is only about 12 inches, so that seems like a pretty steep drop.

am i missing something?  (probably something about ohms law and a 
missing decimal point?)

cheers!
robin (K9RDG)