[Elecraft] Failure of RS-232 Comms to K3 - when cold?

[Roger Dixon]

My set up is using the US-Navigator as a USB to RS232 interface to
communicate with the K3.

I have noticed over the years that I do not always achieve RS232
communication when the K3 is first switched on.  There is normally a delay
from minimal up to a "few minutes".

On two recent occasions I have failed to achieve communication when out
portable.  The only difference here is the temperature - much colder!

Has anyone else noticed similar behaviour?  Currently I do not have another
USB/RS232 convertor so I cannot definitely state whether it is a K3 or a
Navigator "feature".

Roger - G4BVY