Retevis RT97 is portable analog repeater, it can increase the communication range, many analog radio owners are interested in it. Do you know how can you customize RT97 repeater frequency?
Sure, it’s no problem if you choose the original default frequency of RT97.RT97 has 16 channels, if you don’t want to customize frequency, just choose version UHF-10MHz-Stock in the listing is ok.
Default Offset 10mhz, Tx:463.3125mhz and RX:453.3125MHZ
How to customize RT97 repeater frequency?
RT97 repeater can be customized within the range UHF:400-470MHz or VHF:136-174MHz
1.UHF-10Mhz-Customize: Offset 10mhz, Tx and Rx’s frequencies can be customized. But Tx must be higher than Rx.
2. UHF-5Mhz-Customize: Offset 5mhz, Tx and Rx’s frequencies can be customized. But Tx must be higher than Rx
3.VHF-10MHZ-Customize: Offset 10mhz, Tx and Rx’s frequencies can be customized. But Tx must be higher than Rx
4.VHF-5MHZ-Customize: Offset 5mhz, Tx and Rx’s frequencies can be customized. But Tx must be higher than Rx
Customize leadtime:
The Customized version takes 20-25 days to customize. So you need wait for a few days to receive.
There are two lines on RT97 repeater screen, for example:
RX: 443.41250
TX: 453.41250
long press the 
button, the screen will show the TX and RX CTCSS/DCS code:
Then in analog radio corresponding communication channel, just set reversed TX/RX frequency, RT97 will help increase the communication range for the analog radio.
TX: 443.41250
RX: 453.41250
Any other questions about RT97, please feel free to advise here, thanks!
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