Getting some... interesting... behaviour from the QMX+. I'm running power from a nominal 12v (actually 13.8v) PSU into which I've spliced a buck converter set at around 12v. There is a voltage drop when I transmit, but if I hold the metal case of my MacBook which is plugged in to the radio via USB-C, suddenly it jumps to in excess of 12v during transmit! Nothing happens during receive and my signals seem to be getting out to the world. Wonder if anyone has any ideas? #amateurradio #QMX #qrplabs
It’s finished and it works first time (well apart from the lcd backlight but what’s that amongst friends)!! My first ever big construction project, the QMX+ has just been heard across Western Europe on 20m FT8! Courtesy of my first antenna construction too, a 20m dipole with ice-cream tub balun. Feeling very proud now, and slightly relieved it’s finished and working. #amateurradio #qrplabs #QMX #qrp

QRP Labs is running a Hamvention special for US customers to hopefully reduce shipping costs, if FDIM or Hamvention delivery, or USPS from Ohio during Hamvention, works for you. This includes anything in their store, including radios (assembled or kit), parts, and the Morserino M32 Pocket. (Obligatory disclaimer: I'm just a customer, no stake in this...)

#HamRadio #QRPLabs

My #qrplabs #qmxplus and #morserino shipment is scheduled to arrive today. When did kit radios develop such an open source vibe? Maybe the Norcal projects of the nineties? It's a strange overlap with #linux and #hamradio.
Made a start on my #QRPLabs #QMX #AmateurRadio Transceiver today. Glad I have an #Optivisor, as it’s very compact! #QRP #HamRadio #AmateurFunk

Jeff W1NC has already fixed my #QRPLabs QMX+ and it's on the way home again!

#HamRadio #AmateurRadio #QRP

#SSB on the #QRPLabs #QMX+ 5W HF transceiver is just so unnecessarily painful. The built-in microphone doesn't work. Standard microphones don't work.

The very specific microphone capsule required goes for 21 € inc. shipping from Digikey. A finished microphone assembly by G7UFO is 41,85 € inc. shipping. The whole QMX+ kit is only 125 USD, on comparison.

I have revision 4 of the PCB. Really would have expected it to have been fixed to take any microphone by now, or come with the microphone.

Yesterday I was able to do a QRP POTA activation at US-4160, a new park for me. I made 28 FT8/FT4 contacts, well 27 because one was a dupe. I used the QDX but need to get the QMX+ out in the field next. I am excited that one of the contacts was from Gibraltar! #qrp #qrplabs #pota #HamRadio
Just participeted in a group-order for the #QRPLabs QMX+ being very excited what to expect... Delivery somewhere march/April.