The scanning speed on stock DM-1702 firmware is slow. The OpenGD77 firmware reduces scan resume time significantly, turning the radio into a viable scanner for public safety or ham radio use.
: A dedicated Baofeng USB programming cable (ensure the drivers are installed on your PC). baofeng dm1702 firmware update
: Some units ship with L05.01.004 firmware, requiring RT72 programming software , while others utilize v02.02.014 , which demands the MD CPS software . The scanning speed on stock DM-1702 firmware is slow
If you are into working amateur radio satellites (like the International Space Station or AO-91), the stock firmware lacks proper doppler shift management. The OpenGD77 update adds a dedicated Satellite mode with automatic TX/RX frequency adjustments. requiring RT72 programming software