My LA-1K was flawless into my dummy load.? It was flawless into the dummy load attached to the HF-AUTO tuner.? When I connected my non-resonant dipole to the HF-AUTO and tried to operate my LA-1K, something transient kept shutting the LA-1K down.? After much testing with no resolution I called Mark at Palstar and described the issue.? I told him what antenna I used and he immediately asked if I use a surge protection device in the transmission line.?
I had two devices in line - a PolyPhaser device and an AlphaDelta device.? I first removed the AlphaDelta device and there was no change in performance - still no amp operation.? Upon removing the PolyPhaser the amp worked as it should, and the HF-AUTO even tuned the antenna to frequency faster than before.
The surge suppression devices, when used in a higher power line with a non-resonant antenna, can create a transient SWR condition which the LA-1K can detect, thus causing a shutdown.?
The amp works perfectly now.? And I now search for a workable lightning protection solution for my station.
