propagation online

80/75 Meter 4-Square Array - This array has been in use since 1989. The SWR from 3.5 to 3.9 is below 1.5:1. The F/R of the array is 20dB average and with some signals even better.

NVIS Antennas - Kv5r Understanding NVIS Antennas and Propagation

eHam QSL manager Finder - An online database of QSL managers at eHam maintained by K4WA

Onlineradio blog - Blog pour Radioamateurs. A Blog for radioamateurs mainly in french

N2JRF Amateur Radio & Hobbies - Amateur radio ham machining mill lathe cannon photo

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

Scanner Chile - Scanner Chile is a System online where you can listen to the Departments of Firemen of the Metropolitan Region Chile

Webcam @ DL6KAC - The webcam is usually online during contests, longer radio activities and similar events. If it is offline, the stream might be online.

Amidon Baluns - HF baluns by amidon.de with online shop

DB0ANF APRS Server - Db0anf APRS server for nuernberg / fuerth area, providing online access to the aprs station database

IPS - HF Systems MUF maps and prediction charts - These pages provide general propagation advice for HF communicators. Information available includes inferred global propagation conditions, real time HF fadeout coverage charts, regional ionospheric vertical MUF maps and Hourly Area Prediction charts for Astralia and Asia, Europe and North America

Real-Time Space Weather - Great propagation resources page assembled by David Rosenthal, N6TST

Radio Sport Canada Zone to Zone propagation - ZoneProp produces a 40 zone by 40 zone matrix that is updated hourly at approximately 20 minutes past the hour. The intersection between a row and column gives the band on which a constestant in the zone represented by the row is mostly likely able to contact an contestant in the zone represented by the column.

Sydney live police scanner - Live online police scanner for Sydney Australia.

DC Ace Electronics, Inc. - Amateur Radios and Accessories online shop IL USA

Walcott CB Radio Store - CB Radios And Antennas, Marine Radios, Scanners, Radar Detectors. Online store and repair service

Government Liquidation - Government Liquidation is an online marketplace for the sale of U.S. Government surplus and scrap material to the public

Toxic Tops - Online Ham Shack - Stuff - Gifts for the Ham or Amateur Radio enthusiast in your life. Choose from Shirts, Mugs, gifts and more with Ham oriented sayings.

Javascript antenna calculations - Javascript online calculators for dipole 5/8 verticals with radials, and delta loop antennas

VT100/ANSI terminal and Telnet client - Online is a VT100/ANSI terminal emulator and Telnet client for Palm OS organizers. Connect to Unix systems, configure routers and reprogram embedded computers.

Proplab-Pro - An ionospheric laboratory for your personal computer. Wquipped with one of the most powerful ray-tracing engines capable of handling such things as Ionospheric Tilts Chordal Hops Non-Great-Circle Propagation Spitzes and more

Propagation Wizard - Freeware windows application that help in determine the availability of a shortwave link, by Rohde & Schwarz

SEP Win - VHF Propagation Analysis Software for the Radio Amateur by K9SE

PalmProp - PalmProp is a software for PalmOs dedicated to the forcast of HF radiowave propagation by f5hla

Callsign Lookup - Callsign Lookup is a simple, small Apple Macintosh application that allows the amateur radio operator with a dedicated Internet connection (DSL, cable) to quickly access online callsign databases