rf inter

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rf inter

470 links - and 4 categories

Antennas : Magnetic Loop Antennas : Theory
  • Interference Cancelling System - The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
    [ Hits: 1865 | Votes: 1 | Rating: 3 ]
Antennas : VHF UHF
  • VHF/UHF Yagi Antenna Design  pop - Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
    [ Hits: 147401 | Votes: 1105 | Rating: 6.95 ]
DX Resources : Clusters
  • DXWatch  pop - DXWatch is a modern cluster spot filter service and webcluster. Includes the possibility to create your own filter, external widget in a fast and flexible user interface.
    [ Hits: 36766 | Votes: 238 | Rating: 8.05 ]
Manufacturers : Accessories
  • EZMaster by HamRadioSolutions - EZMASTER the all mode all in one interface. USB/Parallel/Serial Device. Include 75 sec Digital Voice Keyer, K1EL Winkey CW Keyer, SO2R switching, two radio interface, two RTTY audio insulated ports, two flexible Antenna Switch control. Ideal for Contesting, SO1R, SO2R, field day and daily activity. Compatibile with all software on the market : CT, CTWIN, TR, NA, WriteLog, N1MM, WinTest, MMTTY, MIXW and more .
    [ Hits: 2084 | Votes: 4 | Rating: 4.25 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • Auto Band Select Box for the FT-817 - This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 (and Quadra?) solid state power amplifiers
    [ Hits: 2285 | Votes: 0 | Rating: 0 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-7R
  • Catbox pc interface - A modular CAT interface for Yaesu VX-7R by G4TIC, tested with icom and ten-tec HF Rigs too, pdf file
    [ Hits: 4493 | Votes: 2 | Rating: 6 ]
Shortwave Radio : Broadcasters
  • Radio for Peace International - Radio for Peace International (RFPI) is a Global Community Radio Station located in Costa Rica, Central America that broadcasts progressive news on shortwave radio and the internet on topics of Peace, Human Rights and the Environment. RFPI gives a voice to the voiceless by promoting democratic communication.
    [ Hits: 713 | Votes: 5 | Rating: 4.8 ]
Software : Legacy Systems : PalmOS
  • FT-100D for PalmOs - Palm interface for the FT100D by Andre, HB9FBD
    [ Hits: 1758 | Votes: 3 | Rating: 2.33 ]
Software : Packet
  • Packet Terminal Interface - Simple Windows based TNC interface program Designed for ARES operation, simple operator interface to connect and perform communication functions, control operator programs screens before operations Both receive and transmit screens Simple Windows based TNC interface program Designed for ARES operation Simple operator interface to connect and perform communication functions Control operator programs screens before operations Both receive and transmit screens
    [ Hits: 11983 | Votes: 24 | Rating: 4.08 ]
Software : Satellite tracking
  • Satbuster - SATBUSTER for Windows is especially designed for satellite visual observers and trackers. Its users, mainly amateur astronomers and radio amateurs, appreciate both the accuracy and the simple to use graphical interface.The software is aimed to hobbysts. However a growing number of plain folks are starting to use this tool to recognize and look at the International Space Station and the Space Shuttle during its missions too
    [ Hits: 2397 | Votes: 3 | Rating: 4.67 ]
Software : Spectrum analyzers
  • SpectraScope - SpectraScope is a simple Windows interface program allowing your computer to view up to two audio waveforms in either the time or frequency domain. The program is a Windows soft panel operating as a dual channel oscilloscope and spectrum analyzer. The useful frequency of operation is 20 to 10,000 Hz in the time domain and 20 to 20,000 Hz in the frequency domain. The program uses the computer sound card to capture the audio input.
    [ Hits: 10805 | Votes: 3 | Rating: 7 ]
Technical Reference : Coax Cables and Connectors
  • RF Coaxial Connectors - RF coax(ial) connectors are a vital link in the radio spectrum. Coax connectors are often used to interface two units such as the antenna to a transmission line, a receiver or a transmitter. The proper choice of a coax connector will facilitate this interface.
    [ Hits: 4329 | Votes: 0 | Rating: 0 ]
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: 2237 | Votes: 0 | Rating: 0 ]
Technical Reference : HF Radios Technical Reference : Radio Frequency Interference : BPL
  • New Developments with PLC in Japan - The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.
    [ Hits: 370 | Votes: 1 | Rating: 1 ]
  • Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service
    [ Hits: 671 | Votes: 0 | Rating: 0 ]
  • Bpl interference blocked in europe - Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe
    [ Hits: 342 | Votes: 0 | Rating: 0 ]
Technical Reference : Sound Card Radio Interfacing
  • Sound Card Interfacing - Homebrew your PC sound card to radio interface with this circuit obtained from the pages of Ernie Mills WM2U.
    [ Hits: 802 | Votes: 0 | Rating: 0 ]
  • Kenwood to pc serial ports - Simple, low cost interface between Kenwood serial ports and contest logging programs by Bob Wolbert, K6XX
    [ Hits: 2267 | Votes: 0 | Rating: 0 ]

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