Harmful interference
Part 97 requires you not to cause harmful interference and to take steps to resolve it when you do. Two stations both operating legally on a shared band must work it out between themselves — no one "owns" a frequency, including net and repeater users, although band plans and long-established nets carry real moral weight.
Dealing with deliberate interference
- Do not respond. Acknowledgement is the reward the jammer is seeking, and it is the single
- Keep operating normally. Log the times, frequencies and content.
- Record it if you can, along with directional bearings if you have a beam or a direction-finding
- Report persistent cases through the ARRL Volunteer Monitor programme and, for serious cases, to
most effective thing you control.
setup.
the FCC Enforcement Bureau.
Direction finding
Coordinated "fox hunts" are a club sport and a genuinely useful skill; groups that hunt for fun on Saturdays are the ones who locate a real interference source in an afternoon.
Interference to and from consumer equipment
See RFI and noise. Most complaints from neighbours involve poor immunity in their equipment rather than a fault in your station, but courtesy and a box of ferrites resolve far more cases than citing the rules ever has.