| Home |
| Search |
| Today's Posts |
|
#1
April 14th 21, 08:53 AM
posted to rec.radio.amateur.dx,rec.radio.info
|
|||
|
|||
[DXZone] Sunspot Index Since 1750
The DXZone.com Amateur Radio Internet Guide /////////////////////////////////////////// Sunspot Index Since 1750 Posted: https://www.dxzone.com/dx34352/sunsp...ince-1750.html Propagation/Sunspots The yearly, black, up to 1750, and monthly red, from 1750 up to now, sunspot numbers provided by the Royal Observatory of Belgium SILSO |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| IC-T7H 1750 Hz toneburst | General | |||
| FYI [FA] - Ferrite Rod Loop Antenna VLF 150 - 450 kHz and AM/MW 500 -1750 kHz | Shortwave | |||
| TMG707 - 1750 Hz tone bust | General | |||
| QST no index? | Boatanchors | |||
| 1750 meter projects.. | Homebrew | |||
Linear Mode
