radio frequency

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radio frequency

215 links - and 6 categories

Antennas : Feed Lines
  • Feeding the Beast - Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
    [ Hits: 391 | Votes: 1 | Rating: 10.00 ]
DX Resources : Beacons
  • NCDXF/IARU Beacon Project - The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. These beacons help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere
    [ Hits: 1176 | Votes: 2 | Rating: 7.50 ]
Ham Radio : Band Plans
  • ITU: Frequency Allocations - Table of frequency allocations for Amateur and Amateur Satellite Service
    [ Hits: 2005 | Votes: 1 | Rating: 2.00 ]
Manufacturers : Accessories
  • DCI Digital Communications - Band pass filters, for radio frequency interference problems.
    [ Hits: 506 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Digital and Packet Radio
  • K2RF Communications Products - K2RF is a manufacturer of radio frequency, audio, and video processing products including repeater link controllers, speech limiters, and RF equipment for the commercial, HAM, and amateur radio consumer.
    [ Hits: 664 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Radio Spectrum
  • The Shortwave Broadcast Bands - For convenience, the shortwave part of the radio-frequency spectrum is subdivided into bands. Each band has its own unique propagation characteristics
    [ Hits: 4397 | Votes: 7 | Rating: 7.15 ]
  • US Frequency allocations - Searchable database of frequency allocations in the US, from cellular frequencies, paging frequencies to maritime and microwave frequencies.
    [ Hits: 1632 | Votes: 3 | Rating: 4.00 ]
Propagation : Resources
  • HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format
    [ Hits: 753 | Votes: 3 | Rating: 3.33 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-150
  • Frequency files for VX-150 - Frequency files and software for programmable scanners fro VX-150 and VX-2 yaesu radios
    [ Hits: 4367 | Votes: 12 | Rating: 3.16 ]
Radio Equipment : VHF-UHF Mobile : ICOM IC-2100H Radio Scanning
  • The Radio Reference - RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities.
    [ Hits: 5630 | Votes: 30 | Rating: 6.89 ]
Radio Scanning : Maritime
  • The G4PYR MF Coastal Radio Website - Website dedicated to Coastal Radio Stations, includes frequency lists for memdium frequencies maritime stations
    [ Hits: 1607 | Votes: 8 | Rating: 10.00 ]
Radio Scanning : Regional : USA
  • Las Vegas Scanner Frequencies - These are some of the frequencies that you can listen to when you are in Vegas with your radio scanner. Includes metro, police, fire dept.
    [ Hits: 3512 | Votes: 32 | Rating: 6.09 ]
  • Missouri/Kansas Scanner Radio - Provides comprehensive frequency listings for various public safety agencies and private organizations who operate across the Kansas and Missouri Region.
    [ Hits: 9917 | Votes: 63 | Rating: 6.60 ]
Shopping and Services : Kits and Components
  • Fox Delta Amateur Radio Projects & Kits by VU2FD - Amateur Radio Projects & Kits for homebrewers, includes DDS,sound card interface,programmers, hamcom, frequency counter, RF Power Meter, modems and more.
    [ Hits: 1126 | Votes: 4 | Rating: 10.00 ]
Shortwave Radio : Broadcasters : Pirate Radio
  • Alfa Lima International - A free radio station that is transmitting world wide on several shortwave frequency 's with loads of pirate and freeradio information.
    [ Hits: 1033 | Votes: 1 | Rating: 9.00 ]
Software : APRS
  • APRS-Beacon - The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)
    [ Hits: 3112 | Votes: 5 | Rating: 2.80 ]
Technical Reference : CB Radios
  • Open-channel - A CB radio website aimed mainly at the UK market including help, tips, repairs, mic wiring, frequency charts, chat forum,rig doctor listing, mail order shops and much much more
    [ Hits: 3865 | Votes: 4 | Rating: 7.00 ]
Technical Reference : Electronics
  • Ferrite on Reducing RFI - Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your receivers or transceivers.
    [ Hits: 2070 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Radio Frequency Interference
  • Safety: RF awarness guidelines - Although Amateur Radio is basically a safe activity, in recent years there has been considerable discussion and concern about the possible hazards of electromagnetic radiation (EMR), including both RF energy and power frequency (50-60 Hz) electromagnetic fields. This section summarizes what is now known and offers safety precautions based on the research to date.
    [ Hits: 456 | Votes: 0 | Rating: 0.00 ]
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