This API returns the LPFM channels available at given coordinates along with interfering stations.
The analysis considers the acceptable LPFM channels and determines which of these channels will be less likely to suffer interference from authorized stations. The analysis only considers spacing, and assumes that the interfering stations are operating with the reference facilities for the FM station's class. While helpful, the results should not take the place of a thorough analysis of all options by a broadcast consulting engineer.
If interference to a specific channel is possible, the API will return the call sign, channel, channel relationships (same channel OR first adjacent channel OR second adjacent channel), actual separation (in km), and minimum required separation for no interference within the 60 dBu contour (based on reference facilities and flat terrain).
Because the FM database constantly changes, there is no guarantee that channels represented as "available" will be technically acceptable at the time of application filing.