there are on channel boosters, and there are translators. There are also LPFM's
Stations like 92.5 In Haverhill MA use on channel boosters of mostly light bulb powered wattage to get their rim shot signal 25 miles north of Boston and on a first adjacent to a Boston (Brookline) C.O.L. station into the market
LPFM are unprotected FM's that by law have a VERY limited coverage area.... 3.5 mile radius....
and then there are Translators, assigned to licensed FM's to rebroadcast AM stations, a concession to keep AM license holders from becoming extinct, and they are squeezed in where nothing was ever allowed before (first adjacents for example)... and by law a translator has to relay a licensed AM in the market and if that AM goes off the air the translator does too EXCEPT AM daytimers can feed the translator after they shut down for the night.
WXRV-2 | 92.5 FM | Dover, MA | (99 watts) |
WXRV-4 | 92.5 FM | Boston, MA | (1200 watts) |
WXRV-5 | 92.5 FM | Boston, MA | (24 watts) |
WXRV-3 | 92.5 FM | Newton, MA | (99 watts) |
WXRV-1 | 92.5 FM | Framingham, MA | (99 watts) |
W243DC | 96.5 FM | Needham, MA | (10 watts) |