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Antennas : 6M : 6 meter J-Pole Antenna

  • 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: 33815 | Votes: 18 | Rating: 7.05 ]
Antennas : Baluns
  • How to Make a Great 9:1 RX Transformer - There are lots of good designs for matching transformers for receiving antennas. Make it yourself it's cheap and easy, and very high performance. This is the design used in the TRX-9 transformers.
    [ Hits: 3142 | Votes: 0 | Rating: 0 ]
Antennas : Indoor
  • A Cheap Indoor Dipole for 80m-15m - NC4JB Josh explain in this article how to setup a simple and cheap indoor dipole antenna that can be used on almost all HF bands
    [ Hits: 4517 | Votes: 8 | Rating: 6.37 ]
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: 30315 | Votes: 26 | Rating: 6.87 ]
Antennas : Vertical
  • 5 Band Pipe Vertical Antenna - A simple, cheap and easy to build 26 feet long vertical antenna that works DX on 20 - 10 meters including WARC Bands, it is designed for portability for field days, camping, or permanent installation, cost, and to achieve at least 1/2 wavelength on the WARC bands.
    [ Hits: 547 | Votes: 5 | Rating: 6.2 ]
Ham Radio : Blogs : Special Interest
  • rtl-sdr.com A blog about RTL-SDR - RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset. This is a blog about rtl-sdr, software defined radio and their developments and applications.
    [ Hits: 1540 | Votes: 6 | Rating: 6.75 ]
Operating Modes : JT65
  • Receiving JT65 with RTL-SDR - How to receive JT-65 signals using a cheap RTL-SDR dongle with the 820T2 tuner chip
    [ Hits: 831 | Votes: 1 | Rating: 7 ]
Radio Equipment : Radio Equipment Reference
  • Ham Imports - Your guide to Chinese ham radios - The database of Chinese ham radios. We are here to show you that you do not need expensive kit from big brands to have fun with ham radio. With the explosion of open source designs, cheap manufacturing, and global delivery, you can now get on the bands and explore for less than ever before.
    [ Hits: 111 | Votes: 3 | Rating: 10 ]
Technical Reference : Antenna Launcher
  • DIY Tree Antenna Launching: Cheap and Effective - This article explores budget-friendly methods for launching wire antennas into trees, comparing common options like slingshots and professional arborist tools. The author introduces a simple and cost-effective DIY approach using latex balloons, sand, and readily available materials for efficient antenna deployment in the field
    [ Hits: 112 | Votes: 0 | Rating: 0 ]
Technical Reference : Antenna Switch
  • Fully automatic antenna switch project - Cheap and simple fully automatic antenna switching that permit to automatically select the proper antenna based on transceiver status activity.
    [ Hits: 84 | Votes: 0 | Rating: 0 ]
Technical Reference : Arduino
  • AFSK TNC with Arduino - Cheap AFSK TNC, APRS for everyone with arduino, BeRTOS and a STM32F100 chip by OM5AMX
    [ Hits: 3088 | Votes: 6 | Rating: 4.5 ]
Technical Reference : Software Defined Radio : RTLSDR
  • RTLSDR.com - This Blog covers some of the latest developments and projects involving RTLSDR Dongles a cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset.
    [ Hits: 473 | Votes: 1 | Rating: 10 ]

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