on line radio

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on line radio

319 links - and 4 categories

Antennas : Feed Lines Antennas : Spiral
  • Petlowany Antennas by K6NO - WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length
    [ Hits: 3765 | Votes: 9 | Rating: 6.22 ]
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: 507 | Votes: 0 | Rating: 0 ]
Antique Radios : Antique Radio Reference Ham Radio : Clubs : North America : USA : New York
  • W2ABC Bears NYC - The online home of the Broadcast Employees Amateur Radio Society (BEARS), Inc.
    [ Hits: 549 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : North America : USA : Washington
  • N7GDE The Radio Amateurs of Skagit County - The Radio Amateurs of Skagit County is a service organization. Dedicated to promote amateur radio, provide communications support for other organizations, and encourage visitors interested in Ham Radio
    [ Hits: 607 | Votes: 3 | Rating: 9.33 ]
Manufacturers : Publications
  • mikroElektronika books : Radio receivers - Radio Receivers, from crystal set to stereo, free online ebook including, principles of radio transmission, direct radio receivers and superheterodyne receivers
    [ Hits: 877 | Votes: 3 | Rating: 7.33 ]
Operating Modes : Digital ATV Operating Modes : Repeaters Radio Equipment : Radio Manuals
  • Technical books online - Downloadable Amateur Radio Tube related technical books free of charge and ready to download.
    [ Hits: 2199 | Votes: 4 | Rating: 4.75 ]
Radio Scanning : Nature
  • Live VLF Natural Radio - A collection of VLF natural radio live streams. Where possible, streams are synchronised to provide stereo pairs with baselines of up to 4000 miles.
    [ Hits: 2567 | Votes: 7 | Rating: 4.86 ]
Shopping and Services : Accessories
  • Haydon Communications - Ham Radio On line shop, kenwood yaesu icom alincon ten tec dealer, antenna rotors, antennas, antenna mounts, microphones, antenna mas, receivers and scanners based in Essex England Uk
    [ Hits: 2305 | Votes: 1 | Rating: 7 ]
Shopping and Services : Antennas
  • Adur Communications - Specialist in the design and supply of Radio Communications Equipment and Systems. West Sussex England. Antennas, traps and baluns inline isolators, Outbacker Antennas, Mobile Mounts and Accessories
    [ Hits: 1029 | Votes: 0 | Rating: 0 ]
Shopping and Services : CB Radio Stores
  • Knights Electrocom Limited - UK based online shop for cb and amateur radio equipment and related accessories
    [ Hits: 1057 | Votes: 1 | Rating: 10 ]
  • Cb Radio USA - Cb radio store online offer variety of Cobra Cb radios for sale for you to choose from.
    [ Hits: 1804 | Votes: 6 | Rating: 5.17 ]
Shopping and Services : Cables and Connectors
  • RF Stuff - Online shop for two way radio communications and amateur radio products, antennas, coax and cables, adapters and mounts, accessories and audio parts
    [ Hits: 942 | Votes: 1 | Rating: 10 ]
Shopping and Services : Marine Radio
  • Ham Radio Supplies online - On line shop for amateur radio, cb radio, marine, satellite and scanner supplies based in UK
    [ Hits: 2707 | Votes: 3 | Rating: 6 ]
Shopping and Services : RF Tubes
  • QRO-Parts.com - Svetlana tubes also Russian capacitors,vacuum and coaxial relay, for RF Power Linear Amplifier builders. Amateur-Radio, Broadcast. Full Online Catalog.
    [ Hits: 1212 | Votes: 99 | Rating: 8.88 ]
Shopping and Services : Scanner stores
  • WeAreCB.com - CB radios and antennas are available online at WeAreCB.com. Everything from police scanners to ham radio antennas in one convenient location.
    [ Hits: 1689 | Votes: 2 | Rating: 9.5 ]
Technical Reference : Lightning Protection

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