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353 links - and 7 categories

Antennas : HB9CV
  • HB9CV antenna calculator - Calculate dimension for HB9CV directional antennas
    [ Hits: 3308 | Votes: 71 | Rating: 4.33 ]
Antennas : Magnetic Loop
  • G3FNZ Loop Antenna - A directional active loop receiving antenna system by J A Lambert G3FNZ article published on Radcom in november 1982
    [ Hits: 814 | Votes: 2 | Rating: 7.5 ]
Antennas : Moxon Antennas : Receiving
  • Double Half-Delta Loop RX Antenna - This wire antenna was developed to offer for a small, low-band, ground independent directional receiving antenna, it requires only two support poles. It is basically composed by two interconnected half delta loops and is better than a single flag or EWE, and almost as good as two phased EWE in the same space.
    [ Hits: 939 | Votes: 0 | Rating: 0 ]
Antennas : Theory : Antenna Gain
  • Antenna directivity and gain - Antenna gain and directivity explained in this article at radio electronics antenna pages
    [ Hits: 515 | Votes: 2 | Rating: 6 ]
Antennas : VHF UHF
  • The Skew-Planar Wheel Antenna - This is a very useful aerial design,forgotten for 40 years. This antenna offer a low omnidirectional pattern and has circular polarization. Can be used as a beacon antenna and simulations are for U-VHF and upper
    [ Hits: 607 | Votes: 3 | Rating: 4 ]
Antennas : WiFi
  • Easy 2.4 GHz Omnidirectional Antenna - A step by step guide to easily make a homemade antenna for the Wi-FI band and for a fraction of the cost of a common WIFI commercial antenna.
    [ Hits: 3383 | Votes: 63 | Rating: 7.37 ]
DX Resources : DX Peditions : 2014 DXpeditions
  • XR0YNTT Easter Island - By CE2NTT; 40-6m; SSB QSL via CE2NTT Direct
    [ Hits: 231 | Votes: 0 | Rating: 0 ]
DX Resources : QSL Bureaus
  • RSGB QSL Bureau - The RSGB provides a service for its members to exchange QSL cards at a fraction of the cost of sending them direct.
    [ Hits: 265 | Votes: 0 | Rating: 0 ]
DX Resources : QSLing
  • Direct QSLing - Sending QSL via mail, from the ARRL Club Newsletter
    [ Hits: 372 | Votes: 1 | Rating: 10 ]
Manufacturers : Radio Direction Finding
  • The HANDI-Finder - This Radio Direction Finder Device Connects to an FM Receiver, Transceiver, or HT
    [ Hits: 720 | Votes: 1 | Rating: 10 ]
Manufacturers : Software Defined Radio
  • AFEDRI SDR - Software defined radio products. Maker of AFEDRI SDR a direct sampling Software Defined Receiver by 4Z5LV
    [ Hits: 661 | Votes: 1 | Rating: 10 ]
Operating Modes : Longwave
  • 136 kHz direct conversion receiver - IK2PII describe here a simple direct conversion receiver, thinked for QRSS and DFCW communications, as companion of ARGO or SPECTRAN programs.
    [ Hits: 576 | Votes: 0 | Rating: 0 ]
Operating Modes : Repeaters : Repeater maps
  • RFinder Worldwide Repeater Directory - The only worldwide amateur radio repeater directory. Supports Android, iPhone, web, RT Systems, CHIRP GPS enabled. AvMap, Garmin, TomTom
    [ Hits: 703 | Votes: 3 | Rating: 4 ]
Shopping and Services : Bags and Cases
  • Tool Cases Direct - Online shop for tool cases by Tool Cases Direct Supplier of tool cases, toolboxes and containers.
    [ Hits: 335 | Votes: 0 | Rating: 0 ]
Software : Beacon Monitoring
  • Beacons app for Windows - Shows which beacon is currently transmitting on the selected radio band Displays information about transmitting beacon Informs about direction and bearing from users position towards transmitting beacon
    [ Hits: 879 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : UHF Amplifiers
  • Bi-Directional 2.4 GHz Amplifier - Bi-Directional 2.4 GHz One Watt Amplifier With Receive Pre-Amplifier. This will show you how to add a bi-directional, 2.4 GHz amplifier to your Proxim Symphony for under $100
    [ Hits: 317 | Votes: 0 | Rating: 0 ]
Technical Reference : Antenna Rotator
  • Arduino Rotator Controller - An rotator interface that interfaces a pc to a rotor or rotator controller, emulating a Yaesu GS-232A/B and Easycom protocols, made with Arduino
    [ Hits: 3859 | Votes: 7 | Rating: 7.94 ]
Technical Reference : Raspberry Pi
  • TNC-Pi - TNC-Pi is a special version of TNC-X designed to interface directly with the Raspberry Pi computer. It can connect to the Pi either via the Pi serial port, or via the I2C protocol.
    [ Hits: 847 | Votes: 2 | Rating: 10 ]
Technical Reference : Receivers

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