Storm prep doesn’t feel urgent until you’re sitting in the dark, wishing you’d taken it seriously. Power goes out, roads flood, and stores close faster than you think. Most people assume they’re ready ...

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A piezo disk transducer is a handy part for reproducing beeps and boops, and can also function as a rudimentary microphone. Being a piezoelectric element, it can also generate usable power. Enough to ...

Everything in this video applies to GMRS, CB and ham radio mobile or base-station antennas, not so much walkie-talkie or HT antennas because most walkie talkie antennas are not tunable but also ...