WINTERHEAT 2025, in its sixth year is a month-long VHF/UHF simplex event.

The event will commence at 00:00:01UTC on January 1, 2025 and conclude at 23:59:59UTC on January 31, 2025.

• This is the sixth year for this event.
  
  
• Last Year over 785 participants made over 214,000 contacts.
  
  
• The event is open to all FCC licensed amateur radio operators.
  
  
• All contacts shall be via FM-voice but can be either analog or digital (Fusion, D-STAR, DMR).

GENERAL INFORMATION:

• All participants must be registered with the automated logging system for contacts to be credited
• All contacts must be made on the designated amateur radio frequencies.
• Contacts must be via FM voice and can be either analog or digital (DMR, Fusion, D-Star).
• All contacts must be made during the event period. (00:01UTC January 1, 2025 to 23:59UTC January 31, 2025)
• Stations may only make contact with each other once per day on each designated frequency.
• DMR, C4FM and D-STAR Simplex Frequencies are simply recommendations. Since some areas have pre-designated digital voice simplex frequencies, they may use those frequencies as long as no external repeaters or other infrastructure is used. Simply select the frequency/mode that closely matches your method.

SCORING:

• When making a QSO, only one station will enter the information into the system. Usually the station calling CQ would enter the initial QSO information. Does not matter who submits the initial QSO info as long as the QSO does not get logged twice.
  
  • The other station will be responsible for confirming the QSO.
    
    
• Unconfirmed QSO will be credited with 1 contact point where a confirmed QSO will be awarded a value of 10 contact points.
  
  
• A QSO can be made with a station that has not signed up as a participant. However that QSO will only be award a single contact point. Should the non-participant sign up for event after the QSO is made. The QSO made prior to their sign up will still be credited as a single contact point.