<html><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:12pt"><div>I'm working on the BJ-UV55, and after inspecting the serial comms and memory format, I have concluded that this is essentially a clone (at least memory/program-wise) of UV5R.</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'Courier New', courier, monaco, monospace, sans-serif; background-color: transparent; font-style: normal;">It uses the same memory format, similar ident string, and same programming protocol.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'Courier New', courier, monaco, monospace, sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'Courier New', courier, monaco, monospace, sans-serif; background-color: transparent; font-style: normal;">So I have set this
ident string as follows:</div><div style="background-color: transparent;">BJUV55_MODEL = "\x50\xBB\xDD\x55\x63\x98\x4D"</div><div><br></div><div>However, when using chirp, the radio never acks this (with 0x06)</div><div><br></div><div>Looking at portmon, etc, I see that the baud and settings (9600, 8N1) are correct.</div><div><br></div><div>It's not just chirp. If I try to interrogate with ident string from something like realterm, the radio never responds. <span style="font-size: 12pt;">I'm sure that everything is correct, but the radio still refuses to respond. (I've tried this on linux and windows.) I have also tried doing a factory reset on the radio.</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">The radio will continue to respond just fine to the OEM (but extremely crappy) software with same handshake.</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span
style="font-size: 12pt;">Has anyone else encountered this sort of behavior with the UV5R clone or similar families?</span></div><div><span style="font-size: 12pt;">Any thoughts or ideas?</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">PS. one thought was maybe the oem software is doing some tricks with toggling DTR/RTS. I did try to fiddle around with various combinations, but so far no luck. (One oddity I did notice was that when serial line was set to BREAK, the radio keyed up PTT! Maybe this is something to do with the cable pinout?)</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">-Jens</span></div><div><span style="font-size: 12pt;">AF5MI</span></div><div><br></div></div></body></html>