Radio frequency propagation
Spaceweather.com Official NASA site with many photos
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
David L. Huestis at SRI www sri software chapman chapman
Chapman Function for Atmospheric Attenuation
Chapman function at Science World wolfram chemistry
Chapman Function -- from Eric Weisstein's World of Chemistry
USGS Geomagnetism Program
USGS National Geomagnetism Program | Home
Drawings of Fresnel zone disruption by road traffic, ground, and an obstacle image is under GFDL - wikipedians you can cut it out and put into the article
More Fresnel Zone Details helpdesk
MaxStream Helpdesk - MaxStream.net
his web site that illustrates the apparent difference in group velocity from phase velocity.
Subluminal
Millstone Hill radar haystack mit introduction
Millstone Hill Observatory Introduction
European Inchorent Scatter radar system
Super Dual Auroral Radar Network
Super Dual Auroral Radar Network
Current Solar X-Ray Flux
6-hour GOES 12 & 10 X-ray Flux Monitor
Current Space Weather Conditions
SEC's Space Weather Now
SEC's Radio User's Page .
Radio Users' Page
gwest.gats-inc.com/software/software_page.html gats software
GATS Scientific Software
www.T-Matrix.de . An implementation in IDL can be found at the web site
scattering programs
QSL.net Article
NVIS: Near Vertical Incidence Skywave
Build an NVIS antenna yourself projects
NVIS dipole specification chart
Near Vertical Incidence Skywave
Radio signal propagation Articles about all aspects of radio signal propagation.
Magnetic activity and Schumann resonance quake geo berkeley
NCEDC: Magnetic Activity and Schumann Resonance
A description of a homebrew ELF magnetic field detector experiment vlf inductor inductor
hans2
Schumann resonances, experimental results, electric component
Geophysical observatory - Modra, Slovakia
Schumann Resonance Measurements as a Sensitive Diagnostic for Global Change (fixed)
Schumann resonance reference from University of Oulu
Schumann resonance [Oulu]
Lund Space Weather Center - ( Swedish Institute of Space Physics)
Welcome to Lund Space Weather Center
USGS Geomagnetism Program - ( United States Geological Survey)
USGS National Geomagnetism Program | Home
NSWP Implementation Plan - (NOAA)
NSWP Strategic Plan - (NOAA)
National Space Weather - Strategic Plan
FS-1037C definition of tropospheric scatter its
Definition: tropospheric scatter
DX-Tuners Presenting live FM DX receivers around the world.
Listen to Shortwave, Ham Radio, Air traffic control, Airband, ACARS
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It uses material from the Wikipedia articles :
Aurora (astronomy) , Chapman function , Dipole , Fresnel zone , Group velocity , Ionosphere , Mie theory , Near Vertical Incidence Skywave , Radio propagation , Schumann resonance , Space weather , Tropospheric scatter , TV-FM DX , .
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