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: 🟠

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

DateUserUser scoreStatusToot summary & link
2025-06-25 09:37:06ei7ijb@mastodon.radio7Success!For the 26th challenge, 'Observe the solar data such as sunspot number, flux, K and A values over the week.’, I’m using an iOS app called, Solar Data. I’ve started to use the app to see what bands can be used to get on the air. #hamchallenge HC26S @hamchallenge

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