¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. QRPLabs
  2. Topics

Lost and Not Functioning Drivers

 

Just got a new QMX.? Thanks to all for making this happen.? Worked perfectly out of the box.

Yesterday I was decoding FT-8 and JS8Call on several bands.? Nice sensitive receiver.? But, I was unable to send since I didn't have a serial port for the CAT commands.? I'm running Windows 7 Pro, 32bit, so I got the driver file from STMicroelectronics as noted in the docs.? Followed the instructions as best I could, but no joy.

Not only did a USB serial port NOT get installed, but the QMX device on the USB port also disappeared.? So now dead in the water.? Darn it.? I can understand the serial port not showing up but the QMX device not being recognized when it was before is a puzzler.

Uninstalled the STM software but no change.

As I mentioned, Win7 Pro, on an HP Probook laptop with 4 core processor at 2.56GHz and GB of RAM.

Anyone have any thoughts on this?? I am very experienced with Win7, 35+ years of computer administration experience at HP.? I have other laptops to connect the QMX to, but this laptop is the one I was going to use for portable operations.

Mark
KD0QYN
 

On 24/04/2024 21:42, Mark Griffith via groups.io wrote:
I'm running Windows 7 Pro, 32bit, so I got the driver file from STMicroelectronics as noted in the docs.? Followed the instructions as best I could, but no joy.
Mark,

Here is my W7 driver installation method.


It will be the same as the QDX.

73 Alan G4ZFQ
 

On Thu, Apr 25, 2024 at 05:42 AM, Mark Griffith wrote:
Anyone have any thoughts on this?
Hello Mark,

I had a similar problem here. Please (down on this page).

73, Ludwig
 

The procedure you show is exactly what I did.? I tried it on two different Windows7 laptops, and the results were the same on both.

Interestingly enough, if I now attach the QMX to a Windows11 laptop, the USB serial port shows up, but the QMX device does not.? It did show up briefly but was not working properly.? Now it shows up as an Unknown Device.

I wonder if a firmware update to the QMX would be the answer?

Mark
KD0QYN


On Thursday, April 25, 2024 at 03:57:42 AM CDT, DH8WN@... <dh8wn@...> wrote:


On Thu, Apr 25, 2024 at 05:42 AM, Mark Griffith wrote:

Anyone have any thoughts on this?
Hello Mark,

I had a similar problem here. Please (down on this page).

73, Ludwig

 

I am at the exact same place as you.? Qmx showed up and received fine.? I did drivers prior to using.
?
Then followed g4zfq and now I have serial port but no qmx.
?
Hmmmm.? Did you figure it out?
Thanks!
 

UPDATE
?
I now have it working.? I did an reboot and shutdown of everything.? 1st i plug usb in computer.? Qmx off. Then power qmx.? Only com port shows in dev mgr.? Then open wsjtx.? Then go to radio select QDX, then select com port, cat 32 bit and test cat worked.
?
I hope this helps
Bruce
 

On 01/05/2025 16:28, Bruce N9JCV via groups.io wrote:
I did an reboot and shutdown of everything.? 1st i plug usb in computer.? Qmx off. Then power qmx.
Bruce,

This is an essential feature when using a QMX (or QDX) in Windows.
It is only seen once, then needs a power cycle.

73 Alan G4ZFQ

1 - 7 of 7