Another radio update

I was able to eliminate the hum in the audio of the transmitter by moving it to another part of the home. While this still indicates a shielding problem against outside interference in the design of the unit it does mean I will be able to keep it and use the indoor antenna for a while until an outdoor antenna can be installed to increase the range of the station. This will allow testing of the new audio processing software and new automation software possible for the next few months. Thankfully it appears I will not have to return the transmitter to the manufacturer.