Help in Understanding.....

Discussion in 'Working Different Modes' started by KA5LQJ, Aug 23, 2010.

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  1. KA5LQJ

    KA5LQJ Ham Member QRZ Page

    Hi, ;)

    This does pertain to Ham radio as well as the Public Safety (Part 90) radio systems.

    I need someone to help explain or guide me as to just HOW D-Star, the Part 90 trunked and scrambled systems, etc. works. I know it involves a chip set and special computer programming to be able to 'decode' the proprietary codes" for the different systems, ProVoice, etc. I don't remember all the different names.

    What I'm looking for in hopes of using or designing is an FM repeater system that allows only the intended message to go to that particular unit, whither at home, mobile, or to a handi-talkie. Sort of a 'selective calling' setup.

    With it being FM, it should also be static free and not affected by lightning "crashes".

    Thanks in advance for any and all help.


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