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Yeah... "Locked in transmit" seems unlikely for a simple "failure to connect", though.

There's a common thing that's reported on the 991 where it goes into transmit, if on, when the computer is rebooted. That's because when DTR (or is it RTS) goes low, it acts as the default PTT. Maybe that's happening here?

I vaguely recall reading that order is important-- Disconnect power and USB from the QDX, turn computer on, apply QDX power, plug in USB, something like that. Something about the USB init negotiation with the computer only happens once, with the QDX (and QMX too!)

I keep coming back to seeing USB, not COM and Audio. The computer is seeing something plugged in (USB), but not the correct devices. I don't remember, was there a driver that's supposed to be loaded? Is there something showing in DM Unknown Devices?

In DM, go into View and show hidden devices (i.e., devices that are not present.) I'd delete the hidden devices, especially if there are a lot, just to simplify things.

You could try re-flashing the QDX memory. (How-to is in the manual!) If you can't get to the flash drive to load the firmware, suspects are your USB cable, and some problem on the host computer.

Have you tried known good USB cables? How about another host computer? Are you using a USB hub? What if you connect directly to the computer?

Good Luck, William!

73, Paul -- AI7JR

Paul,?

Yes it is. My issue is the apparent non-recognition of the QDX by the laptop. Apparently, one just plugs every thing in, fires up WSJTX, and the radio takes off in receive mode.?

While the two "USB ports" are visible in the device manager, there are no connections made and the QDX is locked in transmit.?

As I said, I just need to determine if the radio is functioning or is it a connecy/set-up issue.?

--
William, k6whp
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"Cheer up, things could get worse. So I cheered up and things got worse."

-- 
Paul -- AI7JR