29.600 is a fun place for FM simplex on 10 meters. It's usually active and good for a quick report, being the simplex calling frequency. The occasional repeater that pops up on that frequency can ruin the whole experience. One in particular (somewhere in the western U.S. I think) keys up over and over with a strong enough signal to make QSOs difficult. Not sure why anyone would use the SIMPLEX calling frequency for a repeater output. In fact, I heard some guys on 29.500 today complaining how they had to QSY just to escape it. Wish I could catch an ID for the repeater, assuming it even has one. There was one in NYC, but I think the owner heard enough complaints for such an obvious stupid frequency to pick and changed it.