Low Power FM (LPFM) stations often consider relocating for various reasons. However, understanding how far you can move an LPFM station involves navigating specific regulations and technical considerations. Here’s a comprehensive guide to help you understand the parameters of LPFM station relocation.
Unless the FCC has explicitly initiated a filing window for “major changes,” the regulations stipulate that LPFM stations can only relocate under the following conditions:
- The new location is within 11.2 kilometers (7 miles) of the current one.
- If the new location exceeds 11.2 kilometers, a contour study is required to show a 60 dBu contour overlap between the current and proposed facilities.
- In cases where an LPFM station currently shares time with another LPFM station, one or more of these stations can relocate beyond 11.2 kilometers if it means moving them to the same tower.
- If the LPFM station is presently “short-spaced” to a third-adjacent channel FM station, it can relocate to a new location within 500 meters of the third-adjacent channel station’s transmitter.
However, it’s crucial to ensure that the new location adheres to all the minimum distance separations specified in §73.807 of the rules. If the current location is also short-spaced to a subsequently filed broadcast station, and the new location remains short-spaced, you can only move the station if it increases the distance between the other station and the LPFM station.
In cases where the LPFM station holds a second adjacent channel waiver, the new location is also a second-adjacent channel short-spaced, and the spacing is reduced, a new waiver request must be prepared. If the spacing remains the same (rounded to the nearest kilometer) or the station is moved further away, a waiver request might not be necessary, but it’s advisable to file one to demonstrate the absence of interference. The LPFM station remains responsible for addressing any second-adjacent channel interference reported by the affected second-adjacent channel station (see §73.807(e)(2)).
Understanding the Relocation Options for LPFM Stations
Low Power FM (LPFM) stations often consider relocating for various reasons. However, understanding how far you can move an LPFM station involves navigating specific regulations and technical considerations. Here’s a comprehensive guide to help you understand the parameters of LPFM station relocation.
1. FCC Regulations: LPFM stations operate within the guidelines set by the Federal Communications Commission (FCC). According to FCC rules, LPFM stations are generally allowed to change their transmitter site within their licensed “community of service.” The community of service is defined by the station’s primary service contour, typically represented by the 60 dBu contour. This contour defines the area where the station should provide a robust and reliable signal.
2. Licensed Community of Service: Moving an LPFM station too far from its licensed community of service may raise concerns. If the move significantly affects the station’s ability to serve its intended community, it may require FCC approval.
3. License Modification: Relocating an LPFM station outside its licensed community of service typically necessitates filing a modification application with the FCC. This application should include comprehensive details about the proposed new location and the station’s technical parameters at the new site.
4. Interference Considerations: The FCC will assess whether the proposed relocation could interfere with other existing stations, both licensed and unlicensed. If potential interference issues arise, you may need to coordinate with these stations and address interference concerns through engineering solutions.
5. Public Notice: The FCC may require you to provide public notice of your intention to relocate the LPFM station. This allows the affected community to provide input and feedback.
6. Engineering Study: Conducting an engineering study is often necessary to evaluate the impact of the move on signal coverage and interference. This study helps ensure compliance with FCC regulations.
7. FCC Approval: Following the submission of your application, the FCC will review and determine whether to grant approval for the station’s relocation. Be prepared for this process to take some time. Planning well in advance is crucial if you intend to move your LPFM station.
It’s important to consult with an attorney or consulting engineer experienced in broadcast licensing and FCC regulations when considering relocating an LPFM station. They can provide guidance on the specific requirements and procedures to follow for your particular situation. Keep in mind that compliance with FCC rules is crucial to maintain your station’s legal status and avoid potential enforcement actions.