ham radio

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ham radio

2176 links - and 207 categories

Antennas : 12M Antennas : 6M
  • 50MHz J-Pole Antenna  pop - Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
    [ Hits: 33150 | Votes: 15 | Rating: 6.73 ]
Antennas : 80M
  • My 80 Meter Magnetic Loop  pop - A custom made 80 meter loop antenna. Reports on usage and tips to build the support.
    [ Hits: 25822 | Votes: 24 | Rating: 6.74 ]
Antennas : Antenna Calculators
  • EH Antenna calculator - Calculate eh antenna components dimension with this online form
    [ Hits: 19741 | Votes: 72 | Rating: 5.38 ]
Antennas : G5RV
  • The G5 RV Antenna - Theory and operantions, G5RV construction tips by Keith, KE2DI
    [ Hits: 5112 | Votes: 8 | Rating: 6.88 ]
Antennas : J-Pole
  • J-Pole theory  pop - The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
    [ Hits: 29984 | Votes: 25 | Rating: 6.74 ]
  • A J-Pole for 2-meters and 70-cm  pop - An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable
    [ Hits: 99544 | Votes: 117 | Rating: 6.05 ]
Ham Radio : Clubs : North America : USA : California
  • W6BHZ - Cal Poly Amateur Radio Club - The California Polytechnic State University Amateur (Ham) Radio Club (CPARC) has a long tradition of communications service on campus and in the community of San Luis Obispo. The club was founded in 1947, making the Cal Poly Amateur Radio Club the second oldest club on campus
    [ Hits: 890 | Votes: 3 | Rating: 5.67 ]
Ham Radio : Clubs : North America : USA : Mississippi
  • W5YD Ham radio club - Mississippi state university Ham radio club
    [ Hits: 578 | Votes: 2 | Rating: 3.5 ]
Ham Radio : Clubs : North America : USA : Texas
  • W5AC - The Texas A&M University - W5AC is the Texas A&M University Amateur or "Ham" Radio Club. This club, founded in 1912, is one of the oldest university radio clubs in existence.
    [ Hits: 913 | Votes: 3 | Rating: 9 ]
Ham Radio : Clubs : Universities Radio Equipment : HF Transceivers : ICOM IC-756
  • PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).
    [ Hits: 3633 | Votes: 2 | Rating: 7.5 ]
Software : Antenna analysis
  • ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
    [ Hits: 2881 | Votes: 9 | Rating: 5.11 ]
Software : Voice Keyer
  • UDY-2 Voice Keyer - The UDY-2 Voice Keyer digital voice keyer amateur radio software utility integrates many popular voice keyer features in one convenient easy to use program. Whether you're working a contest as multi op, single op, running a net, or just plain rag chewing the UDY-2 Voice Keyer has something to make hamming more fun and convenient for you.
    [ Hits: 6688 | Votes: 6 | Rating: 5.5 ]
Technical Reference : Frequency Counter
  • 50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter
    [ Hits: 6442 | Votes: 10 | Rating: 4.55 ]
Technical Reference : HF Radios
  • 80m SSB & CW transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's
    [ Hits: 10465 | Votes: 16 | Rating: 5.19 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 6m SSB/CW transceiver - Building a SSB & CW QRP transceiver for 50 Mhz
    [ Hits: 10623 | Votes: 14 | Rating: 4.57 ]
Technical Reference : Radio Frequency Interference Technical Reference : VHF Radios
  • Motorola Radius M110 modification - Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio
    [ Hits: 8829 | Votes: 48 | Rating: 4.5 ]

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