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Thanks Rick VE7TK: The data on the Rxd & PPS pins appears to be in sync with the QLG2 display as transmissions of the modes I have used start 1 second after they are 'expected' (eg: WSPR, QRSS,

Happened to me as well. Shut down and restart of Windows 10 and it found it. -- Compton VK2HRX Sydney, Australia

I just got my new QMX and like it a lot. First of all, I'm the most non-technical user of the QCX/QMX products, and the firmware update to the latest version was a snap. I wasn't sure what to expect

I hear you, re current limit. Melted my last CPU, so I'm gun shy... 7 volts and not in current limit, so it's not /asking/ for more... Could have tried and failed, I suppose. Re: cables-- The ones I'm

I'm far from an expert, but 160ma current limit is pretty low. If it was mine I'd try at least 200ma and I think most use 250ma. May make no difference, but IMO it's worth a try. Many stories of bad

Great! Glad to hear it! 73, Paul -- AI7JR

Well, I pulled it apart and checked things out under my microscope. Didn't find anything that stood out; re-heated one connection of the encoder to its board, but still no change. So at this point I'm

Just finished my second QMX. Can't get the Flash drive to show under either Windows or Linux * Checked for any visible shorts, bridges. None found. * Touched up the USB connector, checked for any

Will do... -- Jim / K7TXA Eagle, ID SKCC 10447C BUG 301

It may not be the encoder. Recheck all the pin solder connections and the header connections for the control board and the mating header on the main board. -mike/w1mt

Paul, thanks for the heads-up on getting PuTTY working - that fixed it for me. To that end, I fired it up and tested the hardware - sure enough the left encoder is not working - it shows arrows in one

Anyone here successfully using their QMX with MacLoggerDX? I am able to use my QMX to connect to WSJT-X, but so far unsuccessful getting MLDX to talk to it. -- Jim / K7TXA Eagle, ID SKCC 10447C BUG

You used bigger cores in a stack for the voltage sensing transformer. What was the reason for that?

If you are starting amateur radio in CW, and rather do POTA, I think 5W is not a bad choice. A good antenna is more important. My first CW QSOs were from a POTA park, and I called CQ POTA running 100W

See message #66657 ( /g/QRPLabs/message/66657 ) This is a known issue and impacts only the QLG2 LCD display not the data sent to the serial post. -- 73, Rick VE7TK Website:

Hans, thanks for the reference to 5W PA and excerpt. I went to look at the 5W PA schematic. That version uses a complementary darlington like you mentioned earlier. That would have more gain, but also

Thanks, Ryuji. I may simulate the modulator sometime soon. JZ

Hello ideal.wheel, my first hf rig was a 40m QRP CW kit that was easy to build (NorCal-40A). That radio was love at first dit as a novice in 2000. Today I use my QMX on 80-20m for POTA and couldn't be

I looked into the stability of the modulator circuit because my LDMOS finals are getting blown in conditions that are far milder than I expected. I started looking at all directions. But I noticed

The QMX is suitable for first time operators who are interested in CW and digital modes. It's not an ideal choice for a first build unless it's assisted in something like a class setting. For