radio frequency

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radio frequency

213 links - and 6 categories

Antennas : 160M
  • 160m inverted L by W6SDO - A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band.
    [ Hits: 1826 | Votes: 3 | Rating: 7.33 ]
Antennas : Log Periodic
  • VHF Log Periodic Antenna - 17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array
    [ Hits: 1246 | Votes: 7 | Rating: 5.86 ]
Antennas : Microwave Antennas : Portable
  • Antennas of Field Day - Main High Frequency Antennas from the 2009 LARC FARL Field Day, Ford Amateur Radio League. A document comparing antenna performances and flexibility among a G5RV an Carolina Windom and a Cushcraft R7 vertical antenna.
    [ Hits: 409 | Votes: 0 | Rating: 0 ]
Antique Radios : Collins Collectors
  • Collins 618F-1A VHF Aircraft Transceiver - Restoring a 1965 Collins 618F-1A VHF aircraft radio. This radio was designed for light aircraft as an early frequency-synthesized radio built in 2 separate chassis.
    [ Hits: 313 | Votes: 2 | Rating: 10 ]
DX Resources : Nets : Emergency Nets
  • Caribbean Emergency and Weather Net - The Amateur Radio network now known as the Caribbean Emergency and Weather Net was established in 1958 by Colonel Henry Frew, KV4BZ, for the purpose of having a general calling frequency for the Caribbean Islands and our North and South American friends.
    [ Hits: 340 | Votes: 0 | Rating: 0 ]
Ham Radio : Band Plans Manufacturers : Arduino
  • RFzero - The RFzero is a multi function signal platform developed for radio amateurs who wants to extend the Arduino skills in combination with RF. The RFzero board is largely compatible with the Arduino Zero and Arduino M0 boards, however, it has been carefully designed for flexible use in RF applications and with attention to the frequency spectrum and stability performance.
    [ Hits: 423 | Votes: 6 | Rating: 9.83 ]
Manufacturers : Cable and Connectors
  • Amphenol Connex - Amphenol is a manufacturer of RF connectors, adapters and cable assemblies. Amphenol connector product line includes common radio frequency interfaces such as BNC, SMA and TNC connectors as well as many others.
    [ Hits: 219 | Votes: 0 | Rating: 0 ]
  • Amphenol RF - Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.
    [ Hits: 173 | Votes: 0 | Rating: 0 ]
Operating Aids : Beginner's Guides
  • Amateur Radio Frequencies - List compiled by N4LCD with description of main frequency usage
    [ Hits: 768 | Votes: 0 | Rating: 0 ]
Operating Modes : Satellites
  • Getting Started with the FM Satellites - If you can program split-frequency memories in your dual-band radio, or your dual-band radio has two VFOs, you can work an FM satellite
    [ Hits: 991 | Votes: 1 | Rating: 10 ]
Operating Modes : Weak Signal
  • WSPRnet - A forum dedicated to WSPR. The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation condition
    [ Hits: 375 | Votes: 1 | Rating: 10 ]
Radio Equipment : VHF-UHF Handhelds : Wouxun KG-UV8D
  • KG-UV8D Freq Limit - Mod software to expand the frequency range to the full authorized range of the radio and not beyond 134-174MHz 400-519MHz, it will not add the 2.5kHz step
    [ Hits: 709 | Votes: 9 | Rating: 7.56 ]
Radio Scanning : Scanner Frequencies
  • Intercept Radio - The radio website that respects the Civil Air Patrol and their copyrights. Home of the world's largest radio/scanner frequency database, include live police scanner recordings
    [ Hits: 505 | Votes: 7 | Rating: 8.14 ]
Software : Radio Programming
  • KG-UV8D Programming Software - Wouxun KG-UV8D Standard Programming Software. Used to adjust or expand the frequency range to the full authorized range of the radio and not beyond. 134-174MHz 400-519MHz This software will Not add the 2.5kHz step.
    [ Hits: 579 | Votes: 7 | Rating: 9.29 ]
Technical Reference : Antenna Switch
  • CI-V based remote antenna switch - An home made remote antenna switch project capable to read the current working frequency from the radio and to change antenna accordingly
    [ Hits: 488 | Votes: 0 | Rating: 0 ]
Technical Reference : Frequency Counter
  • Simple Frequency Counter - A very simple RF/Microwave frequency counter homemade project
    [ Hits: 506 | Votes: 1 | Rating: 10 ]
Technical Reference : Radio Frequency Interference
  • Ham Radio TVI in the 21st Century - Ham radio transmissions can interfere with television reception. This is called television interference, or ham radio TVI. Consumer adoption of cable television has significantly reduced ham radio TVI. But the introduction of IPTV, or television over phone systems, has brought ham radio TVI back, often with a vengeance. Here's why
    [ Hits: 322 | Votes: 0 | Rating: 0 ]
Technical Reference : VHF Radios

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