“Joy, Growth, Value and Happiness” is always RETEVIS’s belief. RETEVIS NEWS updates: The product department of SHENZHEN RETEVIS TECHNOLOGY CO.,LTD, had a meaningful Family Weekend Team building on 1st and 2nd September.
The necessary condition for Retevis H-777, RT21 and RT-5R compatible is same frequency and same CTCSS. H-777:400-470MHz UHF analog radio RT21:400-480MHz FRS analog walkie talkies RT-5R:136-174/400-520MHz dual band keypad programmable hand-held transceiver Therefore, there is a common frequency range between the three of them. By programming them, they will be changed to same frequency and […]
The Retevis H-777 does not have a keyboard. It is necessary to use a computer to input the frequency to be used into the walkie-talkie through a dedicated data line for programming. However, sometimes there is a situation in which programming cannot be programmed during the programming process. The reasons for this are as […]