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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 28 Dec 2021


Spiral antenna Links

9



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

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 60 m| 80 m| 160 m| 136 khz| 630 m|
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