Just now my U3S transmitter is blocked in TX condition as is possible to see in the next picture:
The continuous line over 475.740 is my signal more than one hour long. The problem is that it was an unmanned operation and I’m not at home now. Strange is that the U3S doesn’t seems to have a whatchdog for a hard reset of the system in these cases.
It’s probably caused by high antenna SWR because of windy night.
In the next days I will build a web remote control at least to remote reset the TX and eventually turn off the amplifier.
As Rick IW4DXW said to me: “A good test for your amplifier, HI”
