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A Hobby to Fascinate and Educate
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31-meter band aircraft amplitude modulation bandspread dial bandwidth beam calibrated called carrier ceiver channel code reception countries daytime distance Earth equipment fire departments fm broadcast band frequencies Greenwich ground ham bands hear I I I I BO kHz or MHz kind knob lead-in wire length listen to shortwave long wave long-wave lt's main tuning medium-wave Medium-wave stations megahertz messages meters long modulation monitor Morse code munications night ordinary shortwave pick police and fire popular portable programs QSL cards quencies radio communications Radio Peking radio signal radio wave relay RF Gain schedules shack SHIP short shortwave bands shortwave broadcast band shortwave listening shortwave radio shortwave receiver speaker sunset switch tenna There's tions transmitters tuning dial turn two-way radio United upper sideband vhf and uhf Voice of America wavelength weather world community