sunspot gadget

Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.

EA1AQE Blog - Alberto's blog from la coruna spain. A blog with interesting ham radio related blog roll and lot's of gadgets.

Radioexchange.net Antique Radios - Antique radios, ham radio, electronic parts, test equipment, stereo equipment, record players, phonographs, tape recorders, gadgets, Bought & Sold Online

ElectronicsUSA.com - Manufacturers of a growing line of Amateur Radio accessories, electronic kits, and unique gadgets including Whiterook morse keys and keyers

Morse code vs SMS - Speed test - Morse code trumps SMS in head-to-head speed texting combat

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

Sunspot number forecast - Provisional international monthly mean sunspot number

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

Propagation eAlert Service - Automatic e-mail alert of propagation information. Gives current solar flux, Ap, Kp, solar wind information, solar and geomagnetic conditions past and forecast, sunspots, aurora index, and more.

F5LEN Solar forecast - Display solar activity forecast for next 27 days, display A-index, Sunspot Numbers and Flux forecast

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

RWC Belgium - World data center for the sunspot index

Real time sunspots number - Space Weather: Real-Time 24hr Effective Sunspot Number

Batteries and gadgets - Your source for weather radios, communication headsets, 14 channel radios, M&M groovy radios, smithsonian crystal radio and weather station kits, line restrictors, antennas,ham radio accessories, and battery products.

Electronics USA - Manufacturer of led digital clocks, digital timers, countdown clocks, electronic kits, audio switches, binary clock, telegraph keys, and cool gadgets.

Variable bandwidth cw filter - As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception

Gadgets, Inc: Scanner Modifications  ^pop - AOR, Radio Shack, Regency, Uniden scanner mods