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ARRL

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Antennas : Mobile
  • ARRLWeb: The HF Mobile Antenna - Members only articles on HF mobile antennas, includes an interesting RV antenna with a 5 bands coverage, and another similar antenna for camper.
    [ Hits: 3112 | Votes: 1 | Rating: 8 ]
  • A $20 HF mobile antenna - A few hours of fun with PVC and wire and you have got yourself a respectable road radiator. The antenna consists of little more than some PVC pipe topped by a RadioShack replacement whip antenna and a couple of coils made from a small roll of #14 house wire.
    [ Hits: 10545 | Votes: 6 | Rating: 7.33 ]
DX Resources : Beacons : Beacon Lists
  • 10 meter beacons  updated - Ten meters propagations beacons compiled by Bill Hays WJ5O
    [ Hits: 19181 | Votes: 49 | Rating: 5.74 ]
Ham Radio : Clubs : North America : USA : New Jersey
  • North Jersey DX Association - North Jersey DX Association, home of the ARRL W2 Incoming QSL Bureau
    [ Hits: 1174 | Votes: 2 | Rating: 9 ]
Operating Modes : D-STAR
  • D-Star - D-star technical requirements and documentation
    [ Hits: 2390 | Votes: 1 | Rating: 9 ]
Operating Modes : DSP
  • Chip64 documentation - Nino porcino documentation about CHIP64 digital mode
    [ Hits: 1190 | Votes: 0 | Rating: 0 ]
  • Clover - Clover technical specifications, digital communications mode that conveys 8-bit digital data over narrow-band high-frequency radio.
    [ Hits: 929 | Votes: 1 | Rating: 10 ]
  • Clover 2000 - CLOVER-2000 is a faster version of CLOVER (about four times faster) that uses eight tone pulses, each of which is 250 Hz wide, spaced at 250-Hz centers, contained within a 2 kHz bandwidth between 500 and 2,500 Hz
    [ Hits: 856 | Votes: 1 | Rating: 1 ]
  • Domino - Domino is the name given by the developers to a family of IFK coded coherent phase single tone MFSK keyed modes, using sequential tone-pairs in two alternate fields arranged as orthogonal but interleaved tone sets.
    [ Hits: 736 | Votes: 1 | Rating: 10 ]
  • G-tor - G-TOR is a trademark of Kantronics, Inc. G-TOR (Golay-Teleprinting Over Radio) can be viewed, in part, as a variant of the Automatic Link Establishment (ALE) protocol, outlined in MIL-STD-188-141A.
    [ Hits: 559 | Votes: 0 | Rating: 0 ]
  • Mt-63 technical description - The MT-63 modem, constructed around a high speed DSP processor, either in a dedicated external DSP unit like the Motorola EVM, or in PC software using the PC sound card, transmits 64 tones spaced 15.625 Hz apart, in the 1 kHz bandwidth.
    [ Hits: 631 | Votes: 0 | Rating: 0 ]
Operating Modes : JT65
  • JT65 Protocol - JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.
    [ Hits: 1505 | Votes: 3 | Rating: 7 ]
Operating Modes : MFSK
  • Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
    [ Hits: 993 | Votes: 0 | Rating: 0 ]
Operating Modes : Mobile : Bicycle
  • Bicycle-Mobile antenna - WA5FRF VHF mobile antenna for bicycle installation
    [ Hits: 6038 | Votes: 2 | Rating: 9.5 ]
Operating Modes : Stealth Amateur Radio
  • HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
    [ Hits: 9187 | Votes: 7 | Rating: 5.28 ]
Radio Equipment : HF Transceivers : Kenwood TS-2000
  • ARRL: Kenwodd TS-2000 test results - ARRL Laboratory Expanded Test-Result Report Kenwood TS-2000 prepared by American Radio Relay League, Inc. Technical Department Laboratory in pdf format
    [ Hits: 3738 | Votes: 5 | Rating: 5.2 ]
Software : DSP
  • ComTekk Tone Generator - ComTekk Software Tone generator for 2-way radio signaling. Use sound card to generate CTCSS, DTMF, tone remote, ANI and more. Synthesizer for simulation and testing of 2-way radio systems, repeaters, remote control, ANI, Paging and more
    [ Hits: 3073 | Votes: 2 | Rating: 1 ]
Technical Reference : Radio Frequency Interference : BPL Technical Reference : Software Defined Radio : Beginner's Guides to SDR

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