Other than making YouTube videos, OH8STN enjoys man-portable digital micro-expeditions, designing and building bespoke gear, and solving many practical problems associated with man-portable off grid communications on HF. OH8STN promotes the concept of: Max Capabilities with Minimal Gear..
2 - 17′ 9″ Whips I have a commercial vertical and like it but I wanted to try to build a smaller, simpler light weight vertical for multiple bands txt) or read online for free Joe's article discusses the 3/8-wave vertical antenna Cheap HF Homebrew 40m 20m 15m Vertical antenna Cheap HF Homebrew 40m 20m 15m Vertical antenna . Homebrew VHF.
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How to build a monoband HF Vertical Quarter Wave Ham Radio Antenna; Is a Dipole better than a Cobweb Antenna? Ham Radio Aerials. How good is a G5RV and how do they work? Ham Radio Antennas. Dual-Banding your 40m vertical for 15m. Good idea? Ham Radio Antennas; How to build an Inverted L for the low-bands (40m, 80m and 160m). Amy(AI6ZU) and I build a magnetic loop antenna for 160 and 80 meter amateur radio.. 79 - Wire Ground Plane Antenna . 80 - Inverted Delta Loop Antenna for 160m. 81 - Inverted-L for 160m. 82 - 300ohm-Ribbon Dual Band Dipole. 83 - Tri-Band Beam for 20m, 15m, 10m. 84 - Mini-Horse Yagi Antenna . 85 - Backpack J-Pole Antenna for 10m, 6m, 2m. 86 - Fan.
That does not fit every home or garden. Yet there is a horizontally polarized antenna for 10 and 20 meter band, which is suitable for a limited space. A horizontal 20 meter band dipole at 10m height. Gain 1.6 dBi at 10 degrees take off angle. (Simulated with MMANA) A 20 meter band 1/4 wave vertical antenna with feed point at 10m height.
The antenna impedance matching components (BOX “Z” above) to match the antenna impedance to the coax line impedance (usually 50 ohms). For non-resonant end fed antennas, the typical feed point impedance is 300 to 600 ohms and a 9:1 impedance transformer (e.g. 450 ohm average antenna impedance to 50 ohm coax, also know as a 9:1 unun)..
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