[Elecraft] continuous relay click in RX ANT IN

[Tom W8JI]

<< have my beverage connected to the RX ANT IN and I can transmit into my TX
antenna while RX ANT is turned on without problem.
I tried to connect my 40 mts yagi to RX ANT IN because it was listening very
good, but I hear a continuous clicking, like a relay. What´s that? Why with
one antenna is OK and with the other I hear this click click click?>>>

Jorge,

What band? What is your TX antenna for that band and how far from the 40 
meter antenna is the TX antenna?

73 Tom