Sec. 87.45  Time in which station is placed in operation.

    This section applies to unicom stations and radionavigation land 
stations, excluding radionavigation land test stations. In those cases 
in which a new or modified license is issued, if the station or 
modifications authorized have not been placed in operation within eight 
months from the date of the grant, the license becomes invalid and must 
be returned to the Commission unless the licensee shows good cause why 
notification was not made. The licensee must notify the Commission in 
writing when the station is placed in operation.