[Elecraft] K3 Watt-meter question!

[JIM DAVIS]

Gentlemen,

How accurate is the built-in watt meter indicator in the K3???

I'm asking because when I've used a supposed;y accurate "Bird 43" while measuring the K3's various
outputs on the various HF bands there seems to be a slight discrepitancy between what the K3 is 
showing and what's actually there according to the "BIRD!!!"  I'm particularly interested in the
output readings as concerns "6 metres!" Which is MORE ACCURATE???

Regards,

Jim/nn6ee
S/N 2406