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323 links - and 17 categories

Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1272 | Votes: 0 | Rating: 0 ]
Manufacturers : Transceivers
  • QRP LABS - The QRPLABS series of single band QRP CW tranceiver kits are high performance CW tranceivers with easy operating features, small size and light weight.
    [ Hits: 3351 | Votes: 3 | Rating: 6.67 ]
Operating Aids : Beginner's Guides Operating Aids : Beginner's Guides : What Amateur Radio is
  • Eham what is amateur radio - Amateurs/Hams? Operating modes , getting licensed, what ham radio operatos do
    [ Hits: 1555 | Votes: 2 | Rating: 10 ]
Operating Modes : EME
  • Weak Signal VHF by Tim Marek - K7XC - A complete guide to operating the weak signal modes on VHF/UHF/Microwaves. VHF Contesting honor role for the western states, rover, eme basics and vhf contesting.
    [ Hits: 1213 | Votes: 3 | Rating: 10 ]
Operating Modes : Morse code
  • CT1EFL Web Site - Personal web pages with logs, information on learning cw and operating in CT-land.
    [ Hits: 651 | Votes: 0 | Rating: 0 ]
Operating Modes : Packet Radio : Beginner's Guide Operating Modes : Repeaters : USA
  • Southern California Repeater Lists - The most up-to-date listing of VHF/UHF amateur repeater stations operating in Southern California.
    [ Hits: 6606 | Votes: 10 | Rating: 7.89 ]
Radio Equipment : Radio Manuals
  • W4QCF manuals - Operating and Service manuals, electronic publications, QSTS, Handbooks,
    [ Hits: 1344 | Votes: 2 | Rating: 9 ]
Radio Equipment : VHF-UHF Handhelds : Yaesu VX-5R Shortwave Radio : Beginner's guides
  • Getting Started in SW Listening - Excellent and exaustive guide to shortwave listening offered by monitoringtimes, includes operating guides, technical suggestions, buying guieds, antennas implementations and more, all what is needed by shortwave listening beginners.
    [ Hits: 5421 | Votes: 19 | Rating: 6.8 ]
Shortwave Radio : Broadcasters
  • Radio Amanecer Internacional - A Spanish-speaking gospel station operating in Santo Domingo, Dominican Republic, this station broadcasts on 610 and 1570 kHz, as well as, on 6025 kHz.
    [ Hits: 1100 | Votes: 10 | Rating: 7.51 ]
Software : Antenna analysis
  • J Pole calculator  updated  pop - Enter the operating frequency and calculate dimensions of your jpole antenna
    [ Hits: 49458 | Votes: 184 | Rating: 6.36 ]
Software : Internet Linking
  • CQiNet, linking Ham Radio - CQiNet is a family of programs that combine Ham Radio with the Internet using Voice over IP (VoIP) technology. Two programs are currently in the family, "theBridge" and echoLinux. Thebridge is a iLink/EchoLink compatable conference bridge that runs under various versions of Unix as well as Windows. EchoLinux is a EchoLink client program for the Linux operating system.
    [ Hits: 3660 | Votes: 4 | Rating: 7.5 ]
Software : Morse Code Training
  • Morse test - If you're one of the many hams whose principal operating mode is SSB, then the easiest way to increase your enjoyment of the hobby is to use CW. If you disagree with that statement, then there's a good chance, if you're honest with yourself, that the reason is because you have never been good enough at Morse to make using it an enjoyable experience
    [ Hits: 2680 | Votes: 4 | Rating: 3.25 ]
Software : Satellite tracking
  • Predict - Satellite Tracking/Orbital Prediction Program an open-source, multi-user satellite tracking and orbital prediction program written under the Linux operating system by John A. Magliacane, KD2BD. PREDICT is free software
    [ Hits: 2397 | Votes: 4 | Rating: 8.25 ]
  • Gpredict - Gpredict is a satellite tracking program for Unix-like operating systems. In the begining (v. 0.1.x) Gpredict was just a GUI client to John Magliacane's excellent satellite tracking program, Predict, but due to performance problems it has been decided to include the tracking code directly into Gnome Predict (v. 0.2.0 and later).
    [ Hits: 3563 | Votes: 8 | Rating: 9.25 ]
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 : Programming Radio
  • Programming VHF/UHF Radios - Programming a new VHF/UHF radio usually proves to be a frustrating experience for most new amateur radio operators. A new radio must first be programmed for simplex and repeater operation before it can be used to communicate with local hams.
    [ Hits: 15777 | Votes: 29 | Rating: 6.45 ]
Technical Reference : Radio Frequency Interference
  • Interference Handbook - Interference to home electronic equipment is a frustrating problem; but, fortunately, there are several ways to deal with it. This handbook provides a step-by-step process for eliminating the interference
    [ Hits: 4029 | Votes: 2 | Rating: 5.5 ]

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