The young polymath adapted his wireless telegraph to transmit signals produced by the carbon microphone designs that Thomas Edison and Emile Berliner had invented. There, backed by his father's investment, he conducted a short-range telegraphy experiment that would slowly transform into the first commercially viable, long-range radio communications system. Following in the pioneering footsteps of Heinrich Hertz - the first to conclusively prove the existence of electromagnetic waves - 20-year-old Guglielmo Marconi spent long nights working in his parents' Northern Italy attic. And while you're at it, you may want to pick up a new stereo head unit and set of speakers to make the best of your increased range and reception. The Jensen JAN139 and UXCell Universal are notable because they feature internal coils and are rotatable upon installation so they'll fit on nearly any car, truck, or semi truck cab. On the very low end of the spectrum you'll find the AntennaMastsRus Shark Fin, which is exceptionally compact, and the Votex A010 and Keyo1e AP-24PC which are each only about 6 inches long. The Dorman Help! 76866 and WMPHE 7-Inch (also available in 16 inches) cut that length considerably thanks to internal coils.Īnd they do get even smaller.
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The Bingfu Universal is one of the simplest such increases in technology thanks to its corkscrew design that increases the functional length without actually reaching a full 31 inches. Traditionally, they're about 31 inches long, similar to the Dorman Help! 76861 and Jensen HS519L, but advances in design and materials lets you get away with using a smaller module without sacrificing reception. If you're okay with getting your hands dirty, though, the Shark Fin remains a great choice.ĪM/FM antennas are relatively simple devices, but that doesn't mean they're all the same. The only real change made to the wiki this time was the elevation of the Keyo1e AP-23PC, because while it's not quite as aerodynamic as the AntennaMastsRus Shark Fin, the Keyo1e comes in a huge selection of specialized models that promise to fit perfectly on a wide variety of vehicles. We're happy to report that all our previous selections remain very good choices for most consumers.
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