Hi David, The software on the website you mentioned is the same software I have already. The radio's front and rear stickers show KG-UV8D, so it's definitely not the tri-band "E" model.
I've installed a serial port monitoring application on my computer and I can see CHIRP ping the radio and the radio respond, so that should rule out the cable. Is the response from this radio the expected response? Again, the cable and software work flawlessly on the Baofeng UV-5R, so again, the cable should be good.
Thanks.
[26/10/2016 12:48:54] - Open port COM1 (C:\Program Files (x86)\CHIRP\chirpw.exe)
[26/10/2016 12:48:54] - Close port COM1
[26/10/2016 12:49:07] - Open port COM1 (C:\Program Files (x86)\CHIRP\chirpw.exe)
[26/10/2016 12:49:07] Written data (COM1) 7d 80 ff 00 7f }€ÿ. [26/10/2016 12:49:07] Read data (COM1) fe 7d 80 ff þ}€ÿ [26/10/2016 12:49:07] Read data (COM1) 00 7f . [26/10/2016 12:49:07] - Close port COM1