I had a solar PV system installed in my house last week. This is working well, but it does seem to have given rise to interference to the DAB radio signal in the house. The signal drops out for a second or so at almost exactly 1-minute intervals. I can't pin this directly to the PV system, except that it started after it was installed. The installers (who have otherwise been pretty good) say that they haven't heard of this issue before, and don't seem inclined to help much. I haven't found anything definitive online, although there do seem to be some indications that the solar PV inverter (which is mounted in my loft) could be the source of interference. The radios affected are both down on the ground floor, so not particularly near the inverter. Very grateful for any advice as to (a) whether the PV is a likely cause of the issue and (b) if so, whether there is anything that can be done about it?