>>Part 15 doesn't state anything about 100mw on FM, to my memory. Field strength limits exist for all frequencies, save for those under 9KHz.<< The FM limit is 250 uV/m at 3 meters. Sid Schweiger MIS Manager, Entercom Boston LLC WAAF - WEEI - WQSX - WRKO - WVEI Phone: 617-779-5369 Fax: 617-779-5379 E-Mail: sid@wrko.com