I'm looking for a device to protect my K3S front end when using a RX antenna. As I key my rig I can hear the COR clicking and it's making me nervous. I have seen the AS-RXFEP review by W1ZR in QST. I have also seen devices with reed relays on the web. What are you using or am I just foolish to worry about this? Sent from my iPhone ...nr4c. bill