Programming of the Retevis RT21 Walkie Talkie
Usually the walkie-talkie can be programmed to change or set its own parameters (such as frequency or CTCSS). And the walkie-talkie without a keyboard needs to be programmed by connecting a computer through a programming cable. For example the Retevis RT21. Here are 2 ways about programming: 1. You could download the software from our […]
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