CHIRP is a free, open-source tool for programming your radio. It supports a large number of manufacturers and models, as well as provides a way to interface with multiple data sources and formats.

https://chirpmyradio.com/projects/chirp/wiki/Download#

Go to CHIRP-NEXT and click: Download the latest CHIRP-next build here

To get started:

1. Download CHIRP for Above Link
2. Connect programming cable with radio and PC
3. Select correct COM port
4. Press Radio and Read radio data

To this video for detail instruciton for use chirp-next:

https://www.youtube.com/watch?v=ufB9FXsLpKY

Compatible Models:

RT-10

T18

RT-490

RT-470

RT-470X

RT-470L

RT-590 (Use Quansheng UV-K5)

RT-600 (Use Quansheng UV-K5)

RT-850 (Use AR-518)

RT-890( Use RUYAGE UV58PLUS)

RT-420 (Use AR-730)

RT-610 (Use AR-F5)

RT-730 

RT-495

RT-630