[Elecraft] KX3/KX2 voltage display

[Don Wilhelm]

Erik,

The KX3 and KX2 (and K3, K3S and K2) display the voltage AFTER the 
reverse polarity protection diode.  That is the actual operating voltage 
of the transceiver.
The Shottky diode typically drops about 0.3 volts, so the internal 
measurement will be about 0.3 volts lower than a voltage measurement 
external to the transceiver.

73,
Don W3FPR

On 1/2/2017 12:46 PM, E T wrote:
> When using the special VFO B display to show the supply voltage, both my KX3 and KX2 disagree with the rest of my equipment.  The radios consistently are 0.2V - 0.4V lower than my inline meters and my Fluke when measured at my RigRunner distribution block and at the end of a cable (e.g. if I disconnect my PX3).  I don’t see any way to calibrate this, is this expected?