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am mode

365 links - and 6 categories

Antennas : EH
  • EH antennas and CFA antenna - Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.
    [ Hits: 2018 | Votes: 3 | Rating: 5.67 ]
Antennas : Windom
  • OH7SV Matti Hohtola Ham Projects - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
    [ Hits: 20372 | Votes: 36 | Rating: 8.11 ]
Antique Radios : Repair and Restoration
  • BB&B Technical Amateur Repairs - Amateur Radio Repair resource since 1982. We repair all makes and models of Amateur Radio equipment, vintage to late-model
    [ Hits: 976 | Votes: 1 | Rating: 10 ]
Internet and Radio : Sounds
  • Radio Audio and sound files - Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands
    [ Hits: 8451 | Votes: 12 | Rating: 5.08 ]
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 ]
Manufacturers : Antennas : HF
  • The reflected W beam - Hexagonal wire beams for all hf bands, technical resource, EZNEC files, tools for antenna modeling and documentation. You can also order parts to build your own antenna.
    [ Hits: 2786 | Votes: 3 | Rating: 8.67 ]
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 : Amtor
  • About AMTOR - AmTOR may be considered as the next development from RTTY. AmTOR was introduced to overcome the problems with RTTY. As a result of its performance, it has become popular on the HF bands because it gives more reliable communication, especially when interference is present. It achieves this by using a coding system that allows errors to be detected and corrected.
    [ Hits: 363 | Votes: 0 | Rating: 0 ]
Operating Modes : Hellschreiber
  • Ham radio digital modes - An introduction to PSK31, MT63, and Hellschreiber, John DeGood NU3E Trenton Computer Festival in PDF
    [ Hits: 3607 | Votes: 5 | Rating: 6.8 ]
Operating Modes : Morse code
  • CW The Once and Future Mode - A quick look at the code, the superiority of CW as a mode for amateur radio communications
    [ Hits: 883 | Votes: 1 | Rating: 10 ]
Operating Modes : NPR New Packet Radio
  • NPR New Packet Radio - IP over 430 MHz - NPR (New Packet Radio) is a custom amateur radio digital protocol, designed by F4HDK to transport bidirectional IP trafic over radio links on the 70cm band. This IP protocol is optimized for point-to-multipoint topology, with the help of managed-TDMA. Bitrate is up to 500kbps. Home Made modem has a built-in ethernet port to connect to PC. To boost power a DMR amplifier is required to reach 20W. This project is an extension of HSMM - Hamnet - AREDN networks
    [ Hits: 151 | Votes: 0 | Rating: 0 ]
Operating Modes : Packet Radio : Beginner's Guide 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: 3001 | Votes: 9 | Rating: 5.11 ]
Software : Grid Bearing and Maps
  • LocCalc - Distance and directions calculation program using both Spheric, the perfect round earth model, and Vincenty's inverse ellipsoid algorithm, the WGS 84 earth model.
    [ Hits: 1571 | Votes: 5 | Rating: 3.6 ]
  • HamCalc - Add-in module to Microsoft Excel, contains a set of radio amateur relevant special functions: DistSphericLocator(Loc1; Loc2) Calculates the spheric earth model distance between two locators [km] DirSphericLocator(Loc1; Loc2) Calculates the spheric earth model direction from Loc1 to Loc2
    [ Hits: 2242 | Votes: 3 | Rating: 3.67 ]
Software : Logging
  • Turbolog - TurboLog is a station management and logging program for the discerning radio amateur / hamradio operator. Besides powerful database and logging functions there is a fully integrated support for the control of typical radio station equipment, e.g. Transceivers, Packet radio, Morse and voice keyer, Digital modes terminal, Antenna switching, Acoustic alerting, and more. Trial version available
    [ Hits: 1311 | Votes: 2 | Rating: 4 ]
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 : Packet
  • MUTNC - The multiuser/multitasking BPQ Packet Terminal Driver program is a general purpose communications package for communicating with a packet TNC or Baycom modem attached to your IBM-PC/clone in conjunction with the BPQ Node software.
    [ Hits: 1254 | Votes: 0 | Rating: 0 ]
Software : Satellite tracking
  • 0sxsat - On the Satellitenprogram of DJ0SX Peter one can provide time schedules for over 500 satellites or count 23 satellites real-time imTextmode. The large advantage exists in thought out and of long observation practice which are due flexibility in the selection and the requirements to a satellite program. The program runs under Windows 95/98, NT, XP, 2000
    [ Hits: 5019 | Votes: 6 | Rating: 4.5 ]

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