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Well Hello, Charles, I didn't expect to hear from one of my advisers from CWA. I hope you are well. I've been hunting pota activators and often make contact with Allen from our class. CW has become a

Nino, if you measure the voltage on the control board connector, at the point S on below to ground on one of the connectors,?you should see: No buttons pressed 3.3v left button? pressed 2.0v right

Hi Daniel Thanks for your information but I can't still find the fault. I have very carefully checked all connections of the control board and performed an accurate continuity test and all is fine.

Hans, thanks for the update / reply. Certainly understood about the long hours - I can hardly imagine what your daily routine must be like! The CW glitches aren't much of a bother to me, as I use a

John. Great to hear you are doing a QRP Labs project, and I hope you have great successwith the 6m beacon. I have just finished a QMX Rev1 kit and go it on the air late last week.? These kits

Hello, I have a similar experience (kit dispatched on 7th December from QRP Labs). Probably the lot of BS170's delivered in the end of 2023 happens to have lower threshold voltage. The output depends

Saaaaaay ! That's RIGHT!! 72 / 73, Bill. N4QA/4 in OKI; formerly WB4HIO and, before that, WN4BJC in 1965.

I really welcome the prioritisation on the keying glitches and AGC Hans, as the former means I tend not to use my QMX currently. I know you will resolve them, and from my point of view I will then

Hello, Chris, it was one of the single-turn wires not soldered properly. Continuity test with a multimeter does not show anything except if it is the first winding being soldered, that's why the

I do run all my QRP Labs radios on this battery. Wall warts are a problem for these radios IMHO. Just a reference Incase you lose power in a storm. The up front price might be much, but I believe it

Steve, Pertaining to the RF problems. I had a bad RF problem a few years ago with my QCX Mini's. First, I encased the back of my home in lead and remounted the random wire antenna on the neighbor

Nino, What Hans says makes sense. Here is one of the other possibilities he alluded to. I repaired a friend's QCX+ with similar issues with his encoder and push buttons. There were two faults. One

Hi, thanks to all ! I have already checked carefully the continuity on the main board between the connector and the MCU (pins 31-91-92-93) and all is fine. Now I will try to bypass the control board

Hi everyone, for .and this is the second year that I have built a beacon with QCX MINI for 6 meters and it transmits 24/24 with many listens, powered by 13V with 3W power, never had any

If you bought it for the right band why wouldn’t it work? I run a QCX full time as a WSPR beacon. ? Worth keeping the supply voltage down to 9V or so for a better safety margin on PA temperatures

Hi all Reservation for FDIM is open see https://qrparci.org/fdim I'm only saying this because I just made my reservation! FDIM/Hamvention is my favourite event of the year, the highlight of my year,

I just ordered a QCX Mini kit and plan to experiment with it to get it to transmit a 6-meter beacon in the US. Has anyone had success doing this with the QCX kits?

Hi Om? My QMX was assembled and worked for about 1 week CW and FT8. Current at RX was 90mA, output power 2.8-5W, everything OK. I wanted to increase the power by spredding the windings on the

It maybe Class E mode just pure luck! 73 Ross

Hi Matt, I have exactly the same behaviour on my factory assembled 80/20 QMX…. But only with the 014 firmware. Going back to the 011 version restores the ability to receive both LSB and USB