I have done everything I can imagine to do to get the USB/serial cable to work with my device. Yaesu ft-950 radio. Comport is installed using the latest driver from your website. The ID utility says it is the correct chip. (PL2303 HX Rev D) It is com 3,9600.N,8,1. Windows 8 just wont talk to the radio. I had no problems on XP using the old Prolific cable. Got any suggestions.
Thanks for posting with your question and with great details on your setup!
First I’d recommend double checking your baud rate, flow control, etc. settings for the usb-serial adapter. One resource recommends the following:
“Make sure the cable is connected correctly, the COM port selection is correct, and the Bits per second default is set to 9600”
Unfortunately I didn’t find a similar document with recommended settings from Yaesu, but checking with them might help.
There’s a good thread below describing some of the relevant settings, with a reminder that you can’t have more than one application accessing the device on a given com port at a time.
I hope this helps but please let me know if you have other questions!
MCITP Enterprise Support Technician