I bought a couple of Baofeng UV-9R radios with a computer communication cable, but I could not find instructions on how to program the radios from a computer. It took me some time to figure it out, and here is a summary. There are two ways to connect to the radio.
CHIRP is easy: once you’ve figured out the COM port where the radio is listening, select UV-82WP as the radio model, and it should work.
This software can be downloaded from Baofeng: go to http://www.baofengradio.com/ and select Download -> Programming Software. I downloaded the file named “WP970I Setup”, mainly because it specified Chinese/English as language. There were also files named WP970I_CPS, WP970Setup; I am not sure in which ways they are different from the one I downloaded.
After installation, it launches with all-Chinese interface, which on my Windows installation resulted in question marks for all menu names and menu items. Do not worry – there is English interface available, to switch to it, click on the second-last menu and select English from the drop-down. Then select Program -> Read from radio and you should be able to extract data from your device.
My main interest was to program the GMRS channels into the radio to be used in channel mode, and in CHIRP this is easy to do by selecting Radio -> Import from stock config -> US FRS and GMRS Channels and then uploading to the radio.