Eventually I would like to leave the Kiwi up and running on the web. The receive antenna is a center fed 80M dipole fed with a balanced feeder. About 20' from the center of the dipole is a Hustler 6BTV vertical used on the rig, running 400W max on HF.
I would be interested in suggestions for automatic protection when transmitting, not requiring me to remember to throw any switches. I am sure I can use a signal out of the Elecraft K3 so that when transmit is enabled a control line can switch a protection circuit inline, but if RF detection circuits are safe and reliable that would be of more interest. I have seen some circuits using gas discharge tubes as part of the protection network, but would like the safest method. The "automatic" aspect is very important, I know I would eventually mess up and forget to take a manual action before using the rig.
Is there any concern about also protecting the GPS input? That would seem to be more difficult.
What is the maximum RF input that is safely tolerated by the Kiwi input?
Any hams with specific suggestions can find my email address on QRZ.