All distances in kilometers.
Protection of US stations
| Station Class | Co-Channel | First Adjacent | Second Adjacent Minimum Required |
Third Adjacent Minimum Required |
IF (+/- 53/54 Ch.) Minimum Required |
||
| Minimum Required | Fully Spaced | Minimum Required | Fully Spaced | ||||
| LP10 | 13 | 13 | 8 | 8 | 0 | 0 | 0 |
| LP100 | 16 | 22 | 10 | 11 | 0 | 0 | 0 |
| D | 16 | 21 | 10 | 11 | 6 | 6 | 2 |
| A | 72 | 108 | 66 | 66 | 42 | 42 | 8 |
| B1 | 84 | 125 | 78 | 78 | 53 | 53 | 9 |
| B | 126 | 177 | 118 | 118 | 92 | 92 | 18 |
Protection of Translators
| Distance to FM Translator 60 dBu contour | REC Class Indicators** | Co-Channel | First Adjacent | Second Adjacent Minimum Required |
Third Adjacent Minimum Required |
IF (+/- 53/54 Ch.) Minimum Required |
||
| Minimum Required | Fully Spaced | Minimum Required | Fully Spaced | |||||
| 7.3km or less | D1 D2 | 18 | 28 | 12 | 14 | 8 | 8 | 3 |
| More than 7.3km - less than 13.3km | D3 D4 D5 | 24 | 49 | 18 | 23 | 14 | 14 | 3 |
| 13.3km or greater | D6 D7 D8 | 30 | 65 | 25 | 33 | 20 | 20 | 3 |
** - The designators D1 through D8 are internal REC designations used throughout our broadcast database tools to
indicate the coverage areas of translators. D1 through D8 are not official FCC designations of translators.
Minimum Distance from TV Channel 6 Stations
| FM Channel | Full Power TV Stations | Low Power TV, Class A & Translator |
| 201 | 136 | 93 |
| 202 | 134 | 92 |
| 203 | 133 | 91 |
| 204 | 133 | 91 |
| 205 | 132 | 90 |
| 206 | 131 | 90 |
| 207 | 131 | 89 |
| 208 | 131 | 89 |
| 209 | 131 | 89 |
| 210 | 131 | 89 |
| 211 | 131 | 89 |
| 212 | 131 | 89 |
| 213 | 131 | 89 |
| 214 | 130 | 89 |
| 215 | 130 | 89 |
| 216 | 130 | 89 |
| 217 | 130 | 89 |
| 218 | 130 | 89 |
| 219 | 130 | 89 |
| 220 | 130 | 88 |
