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Archimedean Spiral Antenna for RTLSDR
An Archimedean spiral made of two equal lengths of coaxial cable seems to be the easiest circularly polarized antenna to make that'll cover a broad range of the rtlsdr dongles' E4000 tuners
post 25 Jan 2024
Spiral antenna Links →
Spiral Dipole Antenna
The Spiral Dipole is OK, great if you consider the size vs. radiated power
Taktenna antenna project
experimental antenna similar to the TAK-tenna spiral antenna and was evaluated for SWR response over the frequency range of 7.0 to 7.3
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The Spiral Dipole is OK, great if you consider the size vs. radiated power
experimental antenna similar to the TAK-tenna spiral antenna and was evaluated for SWR response over the frequency range of 7.0 to 7.3
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening factor