Technical Publications

RADIO OPERATORS ALPHABET Sometimes Radio transmissions can cause some kinds of speech to be unclear, that is the pronunciation of some letters when spoken on the radio can be garbled or mistaken for other letters. The reason for this is the bandwidth restrictions imposed by the

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RADIO TEN CODES           Radio communication networks have always suffered from a half duplex (one person talks at a time) problem. Unlike cell phones or other telephone communications that are full duplex where you can simultaneously talk and listen at the same

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