1. |
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swpc.noaa.gov
http://www.swpc.noaa.gov/products/station-k-and-indices
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Organic Keywords: 1,596
Organic Competitors: 989
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PPC Keywords: 0
PPC Competitors: 0
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2. |
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swpc.noaa.gov
http://www.swpc.noaa.gov/products/station-k-and-indices
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Organic Keywords: 1,596
Organic Competitors: 989
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PPC Keywords: 0
PPC Competitors: 0
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3. |
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arrl.org
https://www.arrl.org/files/file/Technology/tis/info/pdf/0209038.pdf
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Organic Keywords: 11,881
Organic Competitors: 1,125
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PPC Keywords: 0
PPC Competitors: 0
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4. |
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solarham.net
http://www.solarham.net/a.htm
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Organic Keywords: 365
Organic Competitors: 0
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PPC Keywords: 0
PPC Competitors: 0
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5. |
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en.wikipedia.org
https://en.wikipedia.org/wiki/K-index
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Organic Keywords: 26,359,258
Organic Competitors: 968
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PPC Keywords: 20
PPC Competitors: 165
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6. |
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wm7d.net
http://www.wm7d.net/hamradio/solar/index.shtml
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Organic Keywords: 113
Organic Competitors: 535
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PPC Keywords: 0
PPC Competitors: 0
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7. |
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qsl.net
http://www.qsl.net/w2vtm/hf_solar.html
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Organic Keywords: 11,816
Organic Competitors: 1,172
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PPC Keywords: 0
PPC Competitors: 0
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8. |
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blackcatsystems.com
http://www.blackcatsystems.com/propagation/a_k_index.html
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Organic Keywords: 586
Organic Competitors: 1,025
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PPC Keywords: 0
PPC Competitors: 0
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9. |
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cotlook.com
https://www.cotlook.com/information/cotlook-indices/
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Organic Keywords: 123
Organic Competitors: 868
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PPC Keywords: 0
PPC Competitors: 0
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10. |
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faa.gov
https://www.faa.gov/quick_reference/
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Organic Keywords: 39,592
Organic Competitors: 981
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PPC Keywords: 0
PPC Competitors: 0
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