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hf:solar-terrestrial-data [2025/04/04 20:18] – Fix monospot font 2e0itbhf:solar-terrestrial-data [2025/06/16 19:40] (current) – [Solar Terrestrial Data] m0lte
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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|}} 
  
-This is solar-terrestrial data. Solar-terrestrial charts are used to evaluate radio propagation conditions.+[[https://www.hamqsl.com/solar.html|{{https://www.hamqsl.com/solar101vhf.php?muf=athns&.gif?|Click to add Solar-Terrestrial Data to your website!}}]] 
 + 
 + 
 +The above is LIVE solar-terrestrial data. Solar-terrestrial charts are used to evaluate radio propagation conditions. 
 + 
 +**TL;DR** [[hf:solar-terrestrial-data#quick_interpretation_tips|Quick Interpretation Tips]] 
 + 
 +Here is a bit longer guide on how to interpret them. 
 + 
 +  
  
-Here is a bit of a guide on how to interpret them. 
  
 ===== Date and Time ===== ===== Date and Time =====
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 | 12m–10m | Fair | Poor | | 12m–10m | Fair | Poor |
  
-* ''Fair'': Usable but not ideal +  * ''Fair'': Usable but not ideal 
-* ''Poor'': Weak or unreliable propagation+  * ''Poor'': Weak or unreliable propagation
  
 ===== Geophysical Environment ===== ===== Geophysical Environment =====
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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 =====
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 ---- ----
  
-''SN values are monitored by observatories like NOAA and SIDC. Regular updates available at [[https://www.swpc.noaa.gov/|NOAA Space Weather Prediction Center]].''+SN values are monitored by observatories like NOAA and SIDC. Regular updates available at [[https://www.swpc.noaa.gov/|NOAA Space Weather Prediction Center]].
  
hf/solar-terrestrial-data.1743797888.txt.gz · Last modified: by 2e0itb