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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
Archimedean Spiral Antenna for RTLSDR

Spiral antenna Links

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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


Noise suppression with X-phase II

Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible

The K9AY loop antenna for 160 and 80m bands

The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna

Microphone boom headset for the FT-897

Microphone boom headset for the FT-897 Boom length m. 5.24-fiberglass spreaders m. 2.95-loops dimensions m. 2.00 x 4.27 with 5.00 m