sun clock/cache

Blue Monday CB-Club Sundern - Homepage des CB-Funkclubs Blue Monday, Sundern, Sauerland Germany

Grey Map - Gray line map in black and white

Davis RF - provide electronic and electrical wire, cable, RF connectors, DSP audio filters, rope, non-conductive guy cables for aerial or tower support; plus sundry aerial related parts

What does DX mean - DX is an old radio term used by radio enthusiasts, it stands for the long-distance reception of radio signals, DX being a short-form way of saying distance-extreme.

Aurora current status - Current image of earth's aurora

Catania Solar Images - Daily Solar images taken in Catania Astrophysical Observatory Italy

Solar Activity Forecast - Solar-activity and Geomagnetic activity forecast from Czech Republic

Sonne sunspot observations - Provisional sunspot numbers edited monthly by Martin Dillig

Sunspot number forecast - Provisional international monthly mean sunspot number

Sunrise, Sunset, Moonrise, Moonset, and Twilight Report - U.S. Naval Observatory, Sunrise, Sunset, Moonrise, Moonset, and Twilight ,Moon Illumination, Positions of the Sun and Moon , Eclipses

Sunspot answer book - Mr Sunspot's Answer Book National Solar Observatory Sacramento.

Monthly solar flux values - K.Schatten's table of predicted monthly solar flux values

Map of solar zenith angles - Global map of Solar Zenith Angles, or angles indicating the elevation of the sun above the horizon

Sporadic-E - Short notes about sporadic E influence on VHF propagation

Solar Region Data - SunSpots - Solar Region Data Current Regions with Sunspots Summary, an useful tool for predictions

The Sunspot Cycle - Sunspot Numbers, The Butterfly Diagram, the Greenwich sunspot data and sunspot realted infos.

NASA Sunspot Cycle Predictions - Nasa MSFC predictions on the behavior of current sunspot cycle.

Solar Flare and sunspots - Understand the connection between solar flares and sunspots.

Sunspots explained - History, activity, glossary and modern reseach about suspots

Sunspot numbers explained - Definition of smoothed sunspot number and R12 index

Sunspot Number - How sunspot numbers are computed

About Sunspot cycles - Theory to explain solar cycles variability proposed by Jean-Pierre Desmoulins

Sunspot activity by NASA - Sunspot cycle closely following prediction by Science @ Nasa

Radio Enterprise - A little station in the Netherlands on sundays at 0800utc time broadcasting on freq 6275 am

ProsKan KA1LPA - Dual screen, supports AVT modes,16 Milions col, auto call insert facilities.