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What’s the version of your wsjt-x and is it on macOS? I noticed a weird bug that wsjt-x v2.7.0 on macOS can deafen qmx every time it transmits or changes the band. Entering the menu then exit

While seems likely you may get version 3, building from a screen works nicely. Just starting my qmx plus build now. Plenty of room on small surface for my screen, kit and tools. It's actually easier

Hey Dudley, The capacitors are trained to hide in the knobs on these kits. Look in the cavity where the shaft goes. I have three of the QMX series kits and have experienced capacitors in the shaft

We had nine folks join the MI QRP Zoom Chat on 27 March. Please join us Thursday April 03 (and every Thursday) at 4PM Eastern for the Michigan QRP Club weekly QRP Chat where the main topics will be

Hi Doug, I agree with Nate that the symptom you describe is not normal.? My guess is that the BS170s are getting warm.? The resistance of a MOSFET increases as the temperature rises, reducing the

Doug, that's not normal, no.? I'm not sure what to point to, though. Something impacted by current...... so could be T1, L14, or BS170 soldering faults? I suppose if something in the LPF was heating

Sorry all who answered. ?Guess I missed reading about the rail and tried to look for my message and erase but it wasn’t listed at the time. ?My 82 year old eyes finally saw the indentations on

Hi Mike, I built both of mine from the pdf on screen.? Works fine.? Before I built the first one, I looked into a proper printer producing a colour copy and simply bound - huge cost (not a problem

Hi, I've just ordered a QMX+. I want to print the assembly manual out. I'm assuming it'll be a Rev 3 PCB but I'm wondering if I should wait until the kit arrives to be sure and not 'waste' paper and

Update. After a lot of fiddling with the 20m band edges I ended up with this: Which leads to this: Which seems to have cured the distortion. I have no understanding of what the frequency numbers

Many thanks, Don and Daniel.? With great sadness I have opened a support ticket, but I agree that there's not really another option for me. Again my thanks, Tim Ei2KA

Where is D110 on the qmx board? I can try to check its state. [email protected]> wrote:

I turned it off with the QMX power switch. Earlier today it was exposed to more voltage for a short period of time but it was still working fine after that. I'm not very good at reading schematics but

Hi Stan, Thanks for the tip. I did have a go at messing around with the band config for 20m but I was trying to get a plot similar to the examples rather than aiming to get a complete run. Could

Stan, Many thanks for this. It makes complete sense in my head. Can you give me a clue as to which direction you changed the band sweep values? Ellis

Thanks Curt. it was all on dummy load. I’ve not transmitted SSB on an antenna yet! Ellis

Sorry. Most importantly. No heat. No smoke.

Hello. I was using my QMX on 40m and 20m FT8 with a known good antenna and computer connection, successful QSOs, and no SWR lock outs or other signs of issue. The QMX screen went to all backlight

In my case it seems that editing the tcxo down 2 Hz causes the audio dropout. Returning to 25Mhz instantly restored things !! Yes I am running the SSB beta 1-00-03 firmware. de VK6XT

Good chance the SWR was accompanied with common mode current on the connection(s) to the PC which could cause connection loss (and worse) Sort the antenna and ‘ferrite up’