Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 26.28; Flight Crew Type 3784.27
Communication Breakdown
Ground Event / Encounter Other / Unknown
General None Reported / Taken
Environment - Non Weather Related
When the tug driver plugged his headset in to communicate for pushback from [the] gate; I could hear interference on it from what sounded like a radio broadcast of a church ceremony with singing of hymns. I asked the tug driver if he was listening to a church service and he said no; but he said there was a church down the street that broadcasts their mass and sometimes it interferes with the interphone and you can hear it (!). The interference became even worse once we were pushed back as I could hear a woman reading scripture; but the tug driver was so faint I could barely hear him and had to ask him to repeat himself. My First Officer was listening too and he confirmed what I was hearing. It went away the instant the tug driver unplugged. I've seen some strange things before; but this is definitely odd and someone should look into this.
Air carrier Captain reported interference from a local church broadcast interfered with his communication with the tug driver at BOI airport.