Radio check-in window
Plan airtime for an established, authorized group check-in.
How it is calculated
Base minutes = stations × (message seconds + handover seconds) ÷ 60. Window = base × (1 + repeat allowance ÷ 100) + opening and closing.
Assumptions & limits
Scheduling only; it grants no authority to transmit. Follow applicable licensing, frequency rules and the group’s established procedures. Defaults are illustrative planning inputs, not recommended minimums or a guarantee of safety.
Planning estimates only. Defaults are illustrative, not personalized recommendations. Do not use these calculations as medical, structural, electrical installation or other safety certification. For informational and educational purposes only. CivArk is not medical, legal, engineering or other professional advice. Verify information with qualified professionals and current local authorities. Estimates and preparedness plans cannot guarantee safety or survival.