The MIT UHF Repeater Association maintains the W1XM Repeater which is located on the top of the Green Building.
114.8 Hz CTCSS
In addition to the Repeater, the MIT UHF Repeater Association also has a station (or "Shack") on the roof of the Green building which is used for VHF/UHF contesting purposes.
W1XM APRS Digipeater on Green Bldg. Rooftop
Membership And Meeting Information
W1XM Contest Station homepage
The MIT Radio Society's homepage
Questions? Mail firstname.lastname@example.org