Go to Miklor.com. There they explain that most cables have counterfeit Prolific chips. When Windows updates itself automatically, it installs the latest Prolific driver. That one does not work with counterfeits. You have to roll the driver back to a previous version. Miklor.com not only provides a link to download that driver but it tells you how to tell your computer how not to update it in the future. Chris Knowles, N1CAK

I was recently given a Radioddity QB25, which is also a QYT KT7900D. It came with a programming cable. I got CHIRP up and running on my MacBook Air, and followed the steps to turn off the radio, connect the cable, and turn the radio back on. But there is no USB port in the ports list in CHIRP, and when I try the default Bluetooth port, I get a message that the radio is not in clone mode.

I suspect a driver issue. I tried to search the archives of this mailing list and found some information about macOS drivers for various cables (including some built-in Apple drivers), but didn't see anything specifically about the cable that's supplied by Radioddity. Their website only has Windows driver software. (They say the cable itself works with Windows 7 without a driver but you need a driver for Windows 10.) I tried the generic driver linked from the CHIRP MacOS Tips page, but that didn't work. (Was I supposed to have restarted the MacBook? I only quit and relaunched CHIRP.)

There are other macOS drivers listed on that page, but without knowing what kind of cable/chip Radioddity supplies, I don't know which driver to look for. Does anyone here happen to know what's in the QB25 cable and which driver works with it? I could try contacting Radioddity, but they appear to know nothing about Macs and might not give me sufficient information.

Thanks/73,

Patty N6BIS

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