I've seen 133.62 before as a general use back-up, never 126.27. They were def back-up freqs...126.27 was being used for IGN20 all afternoon (last Wednesday) and then around 8:30 or so they switched to hading off to 133.62. Thursday was back to normal...125.575. I know they combine at night to 134.3, but that's not til usually 11pm or later