[Elecraft] K2: receiving noise without antenna on certain qrgs

[Rolf.Schroeder at t-online.de]

Dr OMs,
currently, I am experiencing noise on certain frequencies while
receiveing while no antenna is connected. To receive this noise, one has
to touch the key connector. This noise can be heard on e.g. 7010 khz. We
have experienced this noise with several K2 in our local ham club. Could
this be a bad ground connection of the key connector?

vy 73 de Rolf, DL8BAG, K2 806