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RT84 can add channel on RT84 by hand conveniently, when you have no computer available for programming at hand. Do you know how to add channel on RT84 by hand?

 The RT81 walkie-talkie is a powerful yet easy to opera

How to connect RT83 to digital repeater RT9550?For radio communication, if the range is not as far as required, it’s really a headache issue. Retevis has a DMR repeater, with digital and analog mode available. Retevis RT9550.Repeater is a good solution when you want to increase the communication range.

Many walkie-talkies of the same brand can talk directly