[Elecraft] K3 internal 2m transverter antenna cable connection

[Jim Miller KG0KP]

OK, what connector does the antenna for the internal 2m module connect to? 
Installation manual doesn't say.  K3 manual doesn't say.  Where is the 
information?   Is it the transverter out BNC?

(name withheld for dumb questions)

KG0KP