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QMXs Low Band 80m 600 60m-20m 2500 Medium Band 60m-15m 2500 High Band 20m -12m 2200 11m 600 10m 2400 QMX+ (retest after factory reset) Almost identical to earlier post

It can’t have failed open circuit as the 12v rail was being shorted to ground. You can check that it is working by looking at TX voltage on the diagnostic screen. It should show 0V in RX and

Hello Allan & Hans Thank you for taking the time to reply. I can see from the group messages that you have a few other irons in the fire! My interest in the QDX-M is in building a few for our radio

Hello Jean, same problem here. Please read /g/QRPLabs/message/143760 for Hans answer. (He wrote about Win7 not Win10). 73 Ludwig

I did some investigation on persistent port naming on Linux some time ago https://sipsmi.wordpress.com/2022/12/13/multiple-flrig-with-persistent-device-mapping/ - read here. This should work with

Hello Hans, I'm on Win7 and just finished my QMX+.? The QMX does appear in the devices list but says it is not connected. I've got the STM drivers but something is not right... -- Jean-Jacques -

Fine here too: Same Audio designator as before and same COM22 plus the new COM16 and 18, which were previously unassigned. I have 4 QMXs and I just need to make sure I plug them into the same USB hub

Awesome, thanks Hans! 73 -- Matt N3AR

Hello Matt I have never owned nor any radio transceiver other than homebrew and QRP Labs radios. So I mostly have no idea what they do. But yes, in QMX, all three Virtual COM ports are completely

Hello Hans, thanks for the quick response. Exactly this came in my mind but I didn't know about the effort. And it looks like a thing of old Win7. Changing between a QMX with FW03 and one with FW04

Please see: https://www.qrz.com/db/KR4DID 72, Bill, N4QA//QRP on the mountain in Roanoke County, Virginia.

Jamie: oops, I mixed up C17 and C16.? What I should have said was that as another PTT option, you could add a SPDT switch.? The switch common is connected to R6/C17 junction (with that leg of C17

Hans, I use a mid 2011 21.5" Mac running OS10.13.6 High Sierra. Using "Terminal" I have operated, at various times, two QDX's and a U4B and all 3 are identified as /dev/tty.usbmodemFDxxx xxx has

Stan, I think it's not a must because the ADC input is involved. If the input is protected by an internal diode the value could be this way. R112 would limit the current to around 0.3 mA into the

Hello Ludwig If it turns out that the new multi-COM feature doesn't suit Win10 then I could make this feature configurable, so that if switched off, you just had exactly the same configuration as

heard nr Hamburg 439 just over my local noise floor on the QMX 73's Martin DK3UW

* We had six folks join the MI QRP Zoom Chat on 17 April. Please join us Thursday April 24 (and every Thursday) at 4PM Eastern for the Michigan QRP Club weekly QRP Chat where the main topics will be

Keith's observation is interesting.? Since we know you are getting voltage at source of Q111 (per your measurement) it means L102 is not open.? But it could be shorted (burned), or maybe R114/Q110

Good afternoon, Hans - First - *incredible* work on this.? There don't seem to be many folks left that are putting out and fully supporting complex kits the way that you are, and I can absolutely

Maybe it's only ok for Win10 and up. For field operation I'm using an older and small Netbook / Notebook only good for Win7. So I test all for Win7 using the STMicroelectronics driver for Win7. It