Search Results for "earth"92 links
Antennas : Satellite
- Eggbeater II Omni LEO Antenna
- Building Eggbeater II Omni low Earth orbit satellite Antennas for 70cm by ZR6AIC
[ Hits: 437 | Votes: 0 | Rating: 0.00 ]
- Two Element Phased Verticals
- Two 40 meter phased vertical antennas, project, pictures and description by W4NFR
[ Hits: 271 | Votes: 0 | Rating: 0.00 ]
- New York City Amateur Radio Emergency Communications Service NYC-ARECS
- New York City Amateur Radio Emergency Communications Service (NYC-ARECS) is a NYC based auxiliary communications service. The organization is made up of amateur radio operators who are trained and dedicated to providing radio communications for governments, civil-preparedness and relief agencies during periods of local, regional, or national civil emergencies. This may include situations such as power failures, explosions, fires, floods, earthquakes or terrorist activities. NYC-ARECS is a participant in the NYC Office of Emergency Management (OEM) Partners in Preparedness program and a member of DHS FEMA's National Preparedness Coalition.
[ Hits: 181 | Votes: 0 | Rating: 0.00 ]
- BikeCam G1OCN Dave
- Live streaming video from G1OCN's motorcycle mobile webcam while he occasionaly drives his motor bike around the South coast of England, with google earth tracking map, APRS callsign G1OCN-10.
[ Hits: 237 | Votes: 1 | Rating: 10.00 ]
- A multi-purpose portable setup
- Working low-earth orbit satellites from any place
[ Hits: 223 | Votes: 0 | Rating: 0.00 ]
- An international Radar network for studying the Earth\'s upper atmosphere, ionosphere, and connection into space.
[ Hits: 87 | Votes: 1 | Rating: 7.00 ]
- Cloud RF - Web VHF/UHF planning
- Web based VHF-UHF RF planning powered by SPLAT! and Google Maps. Access via website, Android App or dynamic Google Earth interface.
[ Hits: 814 | Votes: 16 | Rating: 7.74 ]
- What the numbers mean in propagation
- What the Numbers Mean, and Propagation Predictions--a brief introduction to propagation and the major factors affecting it.
[ Hits: 235 | Votes: 0 | Rating: 0.00 ]
- Online radio planning system, allow you to generate accurate radio frequency predictions for anywhere on earth
[ Hits: 901 | Votes: 9 | Rating: 3.67 ]
- Solar Energy and Ham Radio Projects
- This page contains information on how to harness the sun's energy in a variety of ways.
[ Hits: 231 | Votes: 0 | Rating: 0.00 ]
- 4-1000A Tube RF Amplifier
- Home Brew a 4-1000A RF power amplifier project by W4NFR
[ Hits: 244 | Votes: 0 | Rating: 0.00 ]
- GS-35B Tube Amp
- 160-10 Meters 1500 Watt Amp - W4NFR
[ Hits: 277 | Votes: 2 | Rating: 9.50 ]
- 3-500Z Amplifier Project
- This article loaded with nice pictures and schematics, describes a 160-10 meter linear amplifier that uses a pair of 3-500Z triode power tubes. It was designed and constructed by William Moneysmith, W4NFR.
The amplifier features fast warm up and 1500-Watt RF output with 100-Watts of drive.
[ Hits: 334 | Votes: 3 | Rating: 9.33 ]
- 6m Power Amplifier
- Home Brew 6 Meter Amplifier with a single 4CX250B by W4NFR
[ Hits: 247 | Votes: 0 | Rating: 0.00 ]
- Fox Buster 1
- A Fox transmitter project with picture and schematic by W9XL
[ Hits: 76 | Votes: 0 | Rating: 0.00 ]
- K9VCN Fox Buster
- Schematic and drawings of a Radio Direction Finding trasmitter
[ Hits: 100 | Votes: 0 | Rating: 0.00 ]
- 2 Meter RDF system
- A portable 2 meter radio direction finding system by W9XL
[ Hits: 157 | Votes: 1 | Rating: 1.00 ]