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Migrating VHF radio systems from analog to digital: challenges, strategies, and future-proofing communication

Switching from analog to digital radio communication is a major milestone for any organization relying on VHF systems. This shift, increasingly adopted across sectors like public safety, utilities, transportation, and events, is fueled by a need for clearer audio, smarter spectrum use, stronger encryption, and seamless integration with modern IP networks. This article explores the…

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Building underground antennas: experimental techniques and field-tested insights

Most radio enthusiasts spend their time perfecting antennas that rise above rooftops—tall masts, dipoles strung between trees, or sleek verticals. But what if you turned things upside down, literally? What if you built your antenna beneath your feet? Though unconventional, underground antennas have intrigued hams, survivalists, engineers, and curious tinkerers for decades. This article takes…

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