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Duplexer and Repeaters: Basic Information

Duplexer and Repeaters: Basic Information

Duplexers and Repeaters Some Basic Information BY ROBERT A. LEHNING*, WA2YSJ All across the country there are many amateur repeate  stations operating on 2 meters, 220  and 440 MHz, and to some extent on 1.2 GHz.  Several  modes of operating such as FM, ATV, and packet (digital) have also become...

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