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The RTL-SDR project is maintained by a radio enthusiast group called Osmocom<ref>https://en.wikipedia.org/wiki/Osmocom</ref>. RTL-SDR drivers exist for GNU/Linux, Windows and OS X, and can be tuned with several different popular interfaces. One of them, which is recommended for beginners, is the cross platform visual tuner and de-modulator GQRX<ref>https://gqrx.dk/</ref>. | The RTL-SDR project is maintained by a radio enthusiast group called Osmocom<ref>https://en.wikipedia.org/wiki/Osmocom</ref>. RTL-SDR drivers exist for GNU/Linux, Windows and OS X, and can be tuned with several different popular interfaces. One of them, which is recommended for beginners, is the cross platform visual tuner and de-modulator GQRX<ref>https://gqrx.dk/</ref>. | ||
[[File:Full-wave-loop-listeners.jpg|thumb|right| | [[File:Full-wave-loop-listeners.jpg|thumb|right|240px|Radio enthusiasts in Aotearoa New Zealand listening to an AM radio broadcast from Austria, received on a 20M Full Wave Loop wire antenna connected to an RTL-SDR tuned by the GQRX software]] | ||
When working with RTL-SDR devices it is important to use a reference tone to determine the amount of 'clock shift' (in parts-per-million) that the device in use has, and shift it using your chosen tool before use. This is due to the lower quality of the clock (used to tune) on these devices. They will differ from device to device. | When working with RTL-SDR devices it is important to use a reference tone to determine the amount of 'clock shift' (in parts-per-million) that the device in use has, and shift it using your chosen tool before use. This is due to the lower quality of the clock (used to tune) on these devices. They will differ from device to device. | ||