Winter Field Day (WFD) is January 28-29 — A communications exercise, WFD is open to participants worldwide. Operators use the HF, VHF, and UHF bands and are free to use any mode. Similar to the ARRL’s Field Day, bonus points are earned in several ways, including using non-commercial power sources, operating from remote locations, satellite contacts, and more. Winter Field Day is sponsored by the Winter Field Day Association, which believes that operators should practice portable emergency communications in winter environments, to help increase preparedness for disasters and improve skills in sub par conditions.