Last Reminder: Field Day 2009 is this weekend June 26-28. Setup begins on Friday 2 pm, and operation begins Sat 2 pm. If you want to learn how to set up a station, you can go for an hour on Erev Shabbos to watch. They will be putting up towers and running wires and generators all over. They have 24 hours max to get everything going. Then You can go motzaei shabbos (even in the middle of the night like Shavuos, lhavdil) or Sunday until 2 pm, to watch the stations operate in the contest. Big clubs will welcome visitors and have booths and refreshments with all kinds of interesting stuff.
You can find a club near you by checking the American Radio Relay League web site or calling them (probably better, as they can give you info on best clubs for visitors in your area).
This is a big kiruv event in ham radio. (I do not think there will be Carlebach songs, though, but you can always try.)