Thanks for the replies. I disconnected the repeater so that it was standalone. Below is the log that was created.
20250415154501,TXKEY,MAIN
20250415154510,RXKEY,MAIN
20250415154510,RXUNKEY,MAIN
20250415154523,TXUNKEY,MAIN
20250415154602,RXKEY,MAIN
20250415154602,TXKEY,MAIN
20250415154602,RXUNKEY,MAIN
20250415154608,TXUNKEY,MAIN
20250415155901,TXKEY,MAIN
20250415155910,TXUNKEY,MAIN
20250415160001,TXKEY,MAIN
20250415160018,RXKEY,MAIN
20250415160021,RXUNKEY,MAIN
20250415160022,RXKEY,MAIN
20250415160023,RXUNKEY,MAIN
20250415160029,TXUNKEY,MAIN
20250415160105,RXKEY,MAIN
20250415160105,TXKEY,MAIN
20250415160105,RXUNKEY,MAIN
20250415160108,RXKEY,MAIN
20250415160109,RXUNKEY,MAIN
20250415160111,RXKEY,MAIN
20250415160111,RXUNKEY,MAIN
20250415160118,TXUNKEY,MAIN
20250415160203,RXKEY,MAIN
20250415160203,TXKEY,MAIN
20250415160205,RXUNKEY,MAIN
20250415160205,RXKEY,MAIN
20250415160206,RXUNKEY,MAIN
This appears to be caused by the repeater telemetry such as idents plus the time and weather announcements. There was no local RF being received on the input of the repeater during this period of logging. So when I see a log event for RXKEY,MAIN I don't know if it was really caused by local RF being received.