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radio frequency

201 links and 6 categories about radio frequency on dxzone.com

Result Page:  [prev] 1 2 3 4 5 6 7 8 9 [next]

 Site listings
Manufacturers : Accessories
  • DCI Digital Communications - Band pass filters, for radio frequency interference problems.
    [ Hits: 451 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antenna Analyzers
  • ARTRA QRP Kits - Lots of homebrew kits, you can buy kits or download as free, Association des Réalisation et Techniques RadioAmateurs. Transceivers, filters, converters, frequency meters, antenna analyzers, ATV receivers, interfaces
    [ Hits: 11180 | Votes: 4 | Rating: 3.75 ]
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: 566 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Microwave
  • Low Power Radio Modules - Low power radio modules - supplying rf modules, rf transceivers, radiometrix transmitters receivers, low power radio modules, scada, frequency hopping, 900 mhz, wireless data transmission, data telemetry, gps modules & receivers and more
    [ Hits: 571 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Beginner's Guides Operating Aids : Radio Spectrum
  • Amateur satellite frequency guide - Amateur Satellite Frequency Guide, Compiled December 1996
    [ Hits: 2642 | Votes: 4 | Rating: 5.25 ]
  • 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: 4122 | Votes: 7 | Rating: 7.15 ]
  • US Frequency allocations  updated - Searchable database of frequency allocations in the US, from cellular frequencies, paging frequencies to maritime and microwave frequencies.
    [ Hits: 1574 | Votes: 3 | Rating: 4.00 ]
Propagation : MUF Indicators
  • Current Optimal Frequency Charts - Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy.
    [ Hits: 7759 | Votes: 11 | Rating: 5.09 ]
Propagation : Resources
  • HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format
    [ Hits: 650 | Votes: 3 | Rating: 3.33 ]
Radio Scanning : Maritime
  • The G4PYR MF Coastal Radio Website - Website dedicated to Coastal Radio Stations, includes frequency lists for memdium frequencies maritime stations
    [ Hits: 1430 | Votes: 6 | Rating: 10.00 ]
Radio Scanning : Regional : Australia
  • Newcastle Scanning - Newcastle Scan is the premier radio scanner site for Newcastle AUSTRALIA and a leader in live scanner feed, pictures and emergency recordings GRN INFO AND IDS frequencys
    [ Hits: 7741 | Votes: 31 | Rating: 6.00 ]
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: 3364 | 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: 9572 | Votes: 62 | Rating: 6.69 ]
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: 906 | Votes: 1 | Rating: 9.00 ]
Software : Macintosh
  • WiNRADiO for Mac - WiNRADiO for Mac, WiNRADiO provides Apple Macintosh support for our most popular receiver, the WR-1550e, a medium-range external receiver with frequency range 150 kHz to 1.5 GHz
    [ Hits: 2729 | Votes: 0 | Rating: 0.00 ]
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: 3637 | Votes: 3 | Rating: 6.67 ]
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: 1880 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Frequency Counter
  • 50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter
    [ Hits: 5910 | Votes: 9 | Rating: 4.28 ]
Technical Reference : HF Radios
  • Direct Conversion HF Transceiver with DDS LO - Direct conversion HF radio with DDS frequency synthesizer is very interesting concept. OH7SV and OH2NLT are experimenting with such rig. Full stories will become available when project matures. Here we have some preview pictures and material.
    [ Hits: 4615 | Votes: 10 | Rating: 9.11 ]
Technical Reference : Radio Frequency Interference
  • General Information about RFI/EMI - RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page
    [ Hits: 4060 | Votes: 2 | Rating: 2.00 ]
  • RFI Information Page - This page gives information about Radio Frequency Interference, the unwanted reception of radio signals. You'll find out how to determine what is at fault (the transmitter or the receiver) and what you can do in either case.
    [ Hits: 6756 | Votes: 4 | Rating: 4.75 ]
  • EMI from Lamps - Radio Frequency Interference To/From touch lamps and dimmers
    [ Hits: 759 | Votes: 1 | Rating: 6.00 ]
  • 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: 411 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Scanners
  • iCOM PCR 1000 Web Resource Page - ICOM PCR 1000 user website with tips, manuals, hacks and frequency list for this no-interface radio receiver.
    [ Hits: 4081 | Votes: 6 | Rating: 8.00 ]
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