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Antennas : Theory
- Matching Waves, VSWR at work
- When the radiation resistance (voltage to current ratio) of an antenna is the same value as the characteristic impedance of the transmission line (voltage to current ratio in the line), all of the electrical energy transmitted down the line is taken by the antenna and radiated into space in the form of a radio wave.
[Hits: 282 | Votes: 0 | Rate: 0.00] DX Resources : Shack Rental
- Radio Syd in The Gambia
- Ex commercial AM radio station available for rent, house on the beach, no permanent antennas, space for multi-op activity.
[Hits: 397 | Votes: 0 | Rate: 0.00] Propagation
- SEC's Radio User's Page
- Provide radio operators with current data on the state of the ionosphere. Real-time Displays, Recent Space Environment Reports, Ionospheric Data Sets, Summaries & Medium Range Forecasts
[Hits: 791 | Votes: 1 | Rate: 10.00] - Geophysical Alert Message wwv.txt
- Broadcast via WWV and WWVH at 18 and 45 minutes past the hour. This message is updated every 3 hours.
Reports current Solar-terrestrial indinces, Solar Flux, A-index, K-Index, forecast for space weather storms.
Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
[Hits: 1019 | Votes: 10 | Rate: 8.09] - NOAA Space Weather Scales
- The NOAA Space Weather Scales were introduced as a way to communicate to the general public the current and future space weather conditions and their possible effects on people and systems.
The scales describe the environmental disturbances for three event types: geomagnetic storms, solar radiation storms, and radio blackouts.
[Hits: 757 | Votes: 2 | Rate: 10.00] Propagation : Observatories Propagation : Resources
- Popagation studies committee
Priority listing
- This page is about the RSGB's Propagation Studies Committee, its work, services and current projects, together with guides to where to find more about matters relating to propagation on the Internet at all levels from introductory to professional. Watch this space!
[Hits: 678 | Votes: 2 | Rate: 3.50] Shopping and Services : Microwave
- Carrier Communications
- Carrier Communications sells new and used Motorola and GE two-way radios and microwave equipment We also rent space in 22 antenna sites located throughout California to commerical and amateur radio users.
[Hits: 1660 | Votes: 5 | Rate: 9.80]
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