Last edited by clivesanders; 8th June 2019 at 11:48 AM.
You could stick the yagi on a mast with an elevating rotator in order to use the moon or satellites to bounce the signal.
More seriously I wonder whether the Control Panel could ever be adapted so as to use the home network as many will have extended their networks around the home. It would still need to be operable if there was a network failure. That would then of course mean changes in the TRVs as well. Bluetooth perhaps could be used?