🔍 Key Concepts

• Role of WWV/WWVH as standard time and frequency stations • How mariners and radio operators typically use time signals for chronometer checks and navigation • Whether such services are more useful if they are intermittent or continuous

💭 Think About

• If you needed to check or set a chronometer at any random moment, how often would the signal need to be sent to be practical? • Think about whether WWV/WWVH mainly provide occasional announcements or a constant reference for frequency and time. • Would navigators and radio operators want to wait 15, 30, or 60 minutes for the next signal, or have something they can use at any time?

✅ Before You Answer

• Check what services WWV/WWVH are known for: standard frequency, time-of-day announcements, and time ticks. • Consider whether they are designed for continuous calibration or just periodic checks. • Verify in your study materials whether WWV/WWVH are described as "time and frequency standard" stations and what that implies about how often signals must be available.