How to make a long talk distance of the radios?

How to make a long talk distance of the radios? such as Retevis RT76

1、Connect the power amplifier, such as Retevis RT91(Note: the walkie-talkie antenna is detachable)

2、Connecting to a repeater, such as Retevis RT97.

3、Use in high terrain and open environment.

If it is a license-free radios, it can be used with the walkie-talkie long antenna.

Posted in repeater, Retevis RT97, Retevis RT76, Retevis RT91, power amplifier, long antenna

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