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Antennas : 6M
  • A 6m portable 4 element quad - This antenna is based on a design for a portable 2 element 6m Quad by VE7CA, which is featured in the 19th Edition of the ARRL Antenna Handbook
    [ Hits: 6618 | Votes: 21 | Rating: 8.35 ]
Antennas : Baluns
  • A better antenna-tuner balun - Which balun to use? The hybrid balun promises advantages over both voltage and current baluns by ZS1AN
    [ Hits: 23094 | Votes: 11 | Rating: 5.83 ]
Antennas : Loop
  • ARRLWeb: Loop Antenna - Loop antennas articles with restricted access to arrl members
    [ Hits: 2061 | Votes: 1 | Rating: 10 ]
Ham Radio : Clubs : North America : USA : Texas
  • Ham association of Mesquite - HAM Association of Mesquite, an ARRL affiliated amateur radio club located in Mesquite Texas.
    [ Hits: 855 | Votes: 2 | Rating: 10 ]
  • Richardson wireless klub - The richardson wireless klub is an arrl special service club of amateur radio operators based in richardson, tx, usa.
    [ Hits: 464 | Votes: 1 | Rating: 9 ]
Ham Radio : Hamfests
  • HAMBASH.COM - Ararat Shrine Radio Club of Kansas City
    [ Hits: 624 | Votes: 2 | Rating: 10 ]
Internet and Radio : Humor
  • Dashtoons - "Dash! The Dog-Faced Ham" cartoons by k1nss
    [ Hits: 1229 | Votes: 0 | Rating: 0 ]
Operating Modes : DSP
  • 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: 497 | Votes: 0 | Rating: 0 ]
  • Olivia - The Olivia transmission system is constructed of two layers: the lower, modulation layer is an (almost) classical Multi-Frequency Shift Keying (MFSK) and the higher layer is a Forward Error-Correcting (FEC) code based on Walsh functions.
    [ Hits: 1469 | Votes: 1 | Rating: 3 ]
  • Pactor - PACTOR can be viewed as a combination of two earlier digital modes, packet radio and AMateur Teleprinting Over Radio (AMTOR). PACTOR provides improved throughput because its transmission speed adapts to the quality of the link and it uses Huffman compressed characters.
    [ Hits: 678 | Votes: 0 | Rating: 0 ]
  • Pactor ii - PACTOR-II is a fully backward-compatible improvement to the original PACTOR system. It is an adaptive mode that applies different modulation and encoding methods depending on the channel quality.
    [ Hits: 651 | Votes: 0 | Rating: 0 ]
  • Pactor III - PACTOR-III is a software upgrade for existing PACTOR-II modems that provides a new data transmission mode for improved speed and robustness. PACTOR-III is not a new modem or hardware device. Most current PACTOR-II modems are upgradeable to use PACTOR-III via a software update since PACTOR-II firmware accommodates the new PACTOR-III software
    [ Hits: 857 | Votes: 2 | Rating: 10 ]
  • Psk31 - PSK31 is a digital communications mode which is intended for live keyboard-to-keyboard conversations, similar to radioteletype. Its data rate is 31.25 bauds (about 50 word-per-minute), and its narrow bandwidth (approximately 60 Hz at -26 dB) reduces its susceptibility to noise.
    [ Hits: 1441 | Votes: 1 | Rating: 10 ]
  • Q15X25 - Q15X25 is a packet modem with a KISS/AX.25 interface designed for HF transmission of AX.25 packets and TCP/IP using Automatic Repeat reQuest (ARQ) and forward error correction (FEC).
    [ Hits: 704 | Votes: 1 | Rating: 1 ]
Operating Modes : Mobile
  • DaimlerChrysler Radio installation guide - Radio communication equipment installation recommendations
    [ Hits: 1682 | Votes: 8 | Rating: 3.76 ]
  • ARRLWeb: Automobile - Hams have been putting stations in their cars since the Twenties. Today, there is great satisfaction in facing the challenge of installing a transceiver in our small cars and pick-ups, using somewhat inefficient antennas
    [ Hits: 854 | Votes: 2 | Rating: 10 ]
Radio Equipment : HF Transceivers : Icom IC-746 Software : Logging
  • WD8LQB CountyLog - CountyLog windows amateur radio logging program. Log county contacts, export to ADIF, and access the Who's on the Air Database. Commercial version with free limited version availbale.
    [ Hits: 577 | Votes: 2 | Rating: 8 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
  • Automotive RFI elimination - ARRL pdf file on how remove car noise from your radio. Modern vehicles are RF noisy environments. Come learn how to identify and silence yor mobile noise sources, by WA6PDP
    [ Hits: 3162 | Votes: 6 | Rating: 6.96 ]
  • ARRLWeb: Solving Ignition Noise RFI - Solving Ignition Noise RFI article. Help on removing noise interfences caused by ignition
    [ Hits: 1237 | Votes: 2 | Rating: 10 ]

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