Which form number is the report of radio interference?

Which form number is the report of radio interference?

• A. JSIR Message
• B. CG-2861A
• C. CG-2851
• D. IR-1

Answer: (A)

Reporting radio interference uses a JSIR Message, the form specifically designed to document interference events and get them to the right people quickly. It standardizes what’s recorded—where and when the interference happened, the frequencies involved, what was observed, equipment affected, and any suspected cause—so responders can assess, coordinate, and follow up effectively. The other forms are for different administrative purposes and aren’t the established mechanism for reporting radio interference, so they don’t provide the same targeted, timely route and data fields needed for interference incidents.

Reporting radio interference uses a JSIR Message, the form specifically designed to document interference events and get them to the right people quickly. It standardizes what’s recorded—where and when the interference happened, the frequencies involved, what was observed, equipment affected, and any suspected cause—so responders can assess, coordinate, and follow up effectively. The other forms are for different administrative purposes and aren’t the established mechanism for reporting radio interference, so they don’t provide the same targeted, timely route and data fields needed for interference incidents.