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hf:solar-terrestrial-data

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hf:solar-terrestrial-data [2025/04/04 21:39] – formatting change 2e0itbhf:solar-terrestrial-data [2025/04/08 22:19] (current) – ei5iyb
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 From time to time you might come across an image like this, like those published at [[http://www.n0nbh.com|n0nbh.com]]. From time to time you might come across an image like this, like those published at [[http://www.n0nbh.com|n0nbh.com]].
  
-{{:hf:solar101vhf.png|}}+ 
 +[[https://www.hamqsl.com/solar.html|{{https://www.hamqsl.com/solar101vhf.php?muf=athns&.gif?|Click to add Solar-Terrestrial Data to your website!}}]] 
  
 This is solar-terrestrial data. Solar-terrestrial charts are used to evaluate radio propagation conditions. This is solar-terrestrial data. Solar-terrestrial charts are used to evaluate radio propagation conditions.
  
-Here is a bit of a guide on how to interpret them.+**TL;DR** [[hf:solar-terrestrial-data#quick_interpretation_tips|Quick Interpretation Tips]] 
 + 
 +Here is a bit longer guide on how to interpret them. 
 + 
 +  
 + 
  
 ===== Date and Time ===== ===== Date and Time =====
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 Visual indicator of Maximum Usable Frequency (MUF) across regions. Visual indicator of Maximum Usable Frequency (MUF) across regions.
  
-* Blue: <6 MHz — poor +  * Blue: <6 MHz — poor 
-* Yellow/Orange: 8–16 MHz — moderate +  * Yellow/Orange: 8–16 MHz — moderate 
-* Red: >18 MHz — good+  * Red: >18 MHz — good
  
 ===== Quick Interpretation Tips ===== ===== Quick Interpretation Tips =====
hf/solar-terrestrial-data.1743802776.txt.gz · Last modified: 2025/04/04 21:39 by 2e0itb