52 Week Ham Radio Challenge 2025 - Week 26: Observe the solar data such as sunspot number, flux, K and A values over the week.
Challenge for 2025-06-23 - 2025-06-29:
Category: 📻 - Difficulty: ðŸŸ
Observe the solar data such as sunspot number, flux, K and A values over the week.
Which sources did you use? Did you notice any correlation between the values and the band conditions?
Toots mentioning this challenge
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