The Altoids tin builds are a special sub-specialty of QRP – packable radios. With a pocket-sized radio, a few batteries, and a coil of wire for an antenna thrown into a backpack, you can ...
Even though manufacturers of handheld ham radios have been busy ... to toting around a 12 V battery, which was the method of choice for powering things like QRP rigs when operating off-grid.
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