Earth stations operating in shared bands subject to FCC Rule Part 25 require coordination. Frequency coordination begins when the system design is complete. We first perform an interference analysis to determine frequencies that will not cause harmful interference to other existing and proposed microwave paths and earth stations in a particular band.
After frequencies are selected, a Prior Coordination Notice (PCN), including a system data sheet, must be sent to all existing microwave users in the area to notify them of the proposed earth station. The FCC rules state that the existing users have 30 days to object to the proposal. Once the 30-day period expires and any objections are resolved, we provide the supplemental showing which must be included with your FCC license application.
Interference Analysis includes:
- Identification of the predicted potential interference conflicts for each location.
- Report on site feasibility and recommend steps for site clearance.
- Preliminary or Detailed Studies available depending on the scope of the required analysis.
- Analysis of the earth station with local terrestrial systems and the surrounding terrain to assure the most accurate results possible.
- Quick analysis and coordination for temporary earth station uplinks.
- Radiation hazard calculations in compliance with FCC guidelines and ANSI standards.
- Field verification of the predicted inteference margins and pathloss thru RFI measurements and path surveys.
- Notification of your proposed system to all existing and proposed licensees in your area and frequency band of operation.
- Case resolution if any licensees are not in full agreement.
- Preparation of documentation to satisfy FCC Rule Part 25 coordination requirements. This coordination exhibit is required upon submittal of your FCC Form 312 license application.
- After you complete the frequency coordination process, you must submit a Form 312 application for operation to the FCC. Click here for more information on our licensing services.
- Comsearch tracks your PCN and notifies you when a renewal is required. If a system has not been applied-for or licensed within six months of the issuance of the Prior Coordination Notice, the "lifetime" of the coordination period can be extended an additional six months through a renewal notification of the system.
Comsearch provides cost-effective, high-quality frequency coordination services for satellite earth station communications. Our services include interference analysis, prior coordination and licensing for C, Ku, MSS and Ka-band earth stations.