Hello, My K3 has KPA3 and KAT3 installed, nut not the KRX3 The K3 has a nice way of switching antennas when using both main and sub-rx. I want to use an external rx (R&S EK 896). Is there a nice way to do this? My main concern is of course to protect the external rx when transmitting with the K3. 73es, Per-Tore LA7NO