propagation prediction

Integrated Publishing Basics - Radio wave propagation, Principles of transmission lines, Antennas

Echo-Echo DX Group - The ECHO-ECHO group is an International Radio Club of 11 meter operators. The Group was founded on spring 1989 in Warszawa, the capital of Poland, to study propagation and to promote friendly and brotherly relations among radio operators in the world.

VA2MGL Beacons - Info and specifications on my three beacons on 10 and 6 meter bands. You will find also informations on the propagation for these two band.

AE7Q Amateur Radio Database Query Tools - Lookup callsign histories & applications, available Amateur Extra callsigns, vanity callsign predictions, and more. Updated from FCC data several times a day.

TPN/SB Amateur Radio Newsletter - A Weekly Canadian Amateur Radio Newsletter covering International, National, Provincial, Local Club News, DX, Propagation Forcast, Special Events and much more

hfradio.org Amateur Radio Resource Center - A comprehensive resource center with DX aids, live propagation, callsign searches, news and bulletins, maps, and more by NW7US

6 Meters Online - 6 Meters Online. A site for 6m enthusiasts with propagation reports, forums, webcams and more.

Basics of Propagation by ON4SKY - Thierry LOMBRY, ON4SKY, develops in several long articles the bascis of propagation. His website includes also a French section dealing with auroras.

On-Line HF Propagation Prediction - *One single page* gives you an immediate overview of current shortwave propagation conditions at your location.

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.

Sporadic E propogation Priority listing - Sporadic E notes with reference to ten meters FM by g4xgt

Amateur Radio Propagation Studies - Amateur radio propagation studies (science, research, engineering, operating) and the BeamFinder propagation analysis software

Montreal's MediumWave, FM, SW and TV DX - Information of propagation in and around montreal Canada for shortwave, am , fm and TV dxing, loggings section, propagation forecast and Sporadic E alerts, QSl page, updated frequently

DX Activities of ONL5183 - Whith more than 20 years of ham practicen SWL Thierry LOMBRY, alias ONL5183, has written several technical pages about ham activities, including propagation, radio perturbations, radioastronomy, DXing, QSLing, ham-spirit, review of material and more. This very interesting website is completed by a large French section devoted to amateur astronomy illustrated with vivid colors pictures.

4NEC2 antenna modeler  ^pop - 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. Can be interfaced to HFwin32 propagation prediction software.

Beacon-Prediction Wizard Priority listing - Specialized interface for the communications-analysis-prediction engine provided by VOACAP, predicts the expected performance of high frequency, HF, radio systems

ACE-HF Propagation Prediction Software - Professional PC software for hams that uses VOACAP and includes area coverage maps animated by time or frequency

VOACAP - Point to Point hf ionospheric communications analysis and prediction program

DXProp  ^pop - DXprop is a radiowave propagation forecast freeware for ham radio operators, permits to predict propagation on 12 frequencies. Use Minimuf 3.5 routine developped for US Navy. Available in French and English

HamCAP - A freeware HF propagation prediction tool, that interface the VOACAP tool by Alex VE3NEA

DX ToolBox  ^updated - DX Toolbox searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. It's ideal for the ham radio operator, shortwave listener, or other radio enthusiast.

RadioLink Propagation Prediction - Calculate path losses of a point-to-point radio link. Create terrain profiles using digital elevation models.

Orbitron - Orbitron is a freeware (cardware) application dedicaed to satellite tracking. Allow tracking of ISS, Iridium flares, ham radio satellites, International Space Station, satellite passes prediction, orbits, auto updates and alerting

Radio-Electronics.Com - Information and tutorials about all aspects of radio and electronics including propagation, ham radio, electronics, radio history, etc

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