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Hello, I just built a QMX+, the controls on the device work, but I couldn't test it fully because I don't have an HF antenna in my workshop. When I wanted to test it by connecting it to my computer, I

Mine did that recently too.Just shutdown everything and reconnected PD bank and trigger cable, USB cable, dummy load etc. Have no idea why.Just did it once. GREG Yahoo Mail: Search, Organize, Conquer

I have tried the dummy load with no change in symptoms. Mike, your FT8 plot at least gave me a hint of how to 'see' the tone, HIHI.? I had to install WSJT-X on my little Raspberry and set it up (

From the pic, it appears to be a QMX+. - Bruce K1FFX

I've seem this once and am also puzzled.? However I have noticed that my QMX is susceptible to ESD and if it gets zapped it does weird things.? (when my clothes clash ESDwise with the material in my

What device? The message seems to indicate a problem with, or around, the SI5351 73 Alan G4ZFQ

Hanz, I don’t have a QMX+ V1, but I’m not convinced that you have interpreted the pinout of JP104 correctly. ?I think pin 6 should be ground, not pin 2, using the numbers you have added in the

My favourite is http://lcwo.net (short for learn cw online) It is web based, has got a wide variety of options to practice acc. your choice, it is translated into 30 something languages and most

When the device is turned on, it shuts down after this error message. What could be the reason for this error?

Well rats. Honestly I'm out of ideas. I can't imagine why the Mac thought the Q was consuming too much power, as the USB on the QMX only uses the two data lines. No traces from the USB to anything

Excellent! Tuning off Shapped tx did it! Stan, thank you so much for your help. Best 73, Bob

Sorry Nick i forgot to mention the plus.

1. Make sure that TxID is turned off.? Its timing is incompatible with QMX current tone detection, and QMX will drop tx in the pause between the TxID and normal modem signal (happens in many fldigi

I’m trying to use Fldigi RTTY and seeing the PTT dropping at the very beginning of transmitting text. watching QMX output on my scope I see initial RF signal for less than a second and then output

Even plugged in the QDX, waited until LED stopped flashing, plugged USB cable into computer and got "unknown device." Yes, I did the v3a cut on the pc board. Not doing it I think would result in

Hello. I am returning to ham radio after more than 40 years away. In order to regain some proficiency in CW I have purchased the device referenced in this URL. I am very pleased with it and it is a

Just for information Hanz, the picture you sent appears to be for a QMX+ Version 1, not a QMX.

It could be a defective, since you seem to have the right cables and are confident in your assembly. Contact QRPLabs! Good suggestion, George! Here is my tester in action confirming tha both power

Is there a possibility that the bootloader is damaged? The first few times i have seen the qmx drive come up but it was closed by the MAC due too much power. At one time i tried to copy the new

Hello Greg, I am using rev 1. The USB cables should be fully data i used them for my NanoVNA i used Windows 10. Tried also an older Mac with an older OS. No luck so far. 73 hanz YL3JD