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I wouldn't be too concerned about Hans workload. Think about it. He has over 10,000 QCX-and-family radios out there and they all work "right out of the box". This includes the "standard" QCX, the

With appropriate STM32F firmware, Hans need no further involvement in developing that RPi-Zero+Display. Something interested forum members could do. Hans could concentrate on making the QMX

If you're trying to get the under 5 W bonus in a contest and you know you're running 6 W that's at least an ethical problem. I solved the "12 V" LiFePO problem with an adjustable regulator. My QMX

zBitx current on receive is 300mA, so I tend to agree with you, Jerry. OTOH, the QMX is my preference for portable work due to it's smaller form factor compared to the QMX+. I'd be concerned about

Samantha, For portable use, doing everything through the front panel and and the small display there keeps power requirements low. May be possible to do all you want by adding an RPi-Zero and a

Bruce, my QMX arrived a few months ago into Connecticut via DHL without any brokerage fee.? I wonder if this falls under De Minimis (no tariff) which may mean no brokerage required either.? From

I am in the USA and ordered a QMX+ last week thinking it would come from MO.? It was shipped from turkey.? Now I am really worried as I have heard Fedex charges really outrageous (like $75)

Good luck with that!

Jim, It can be done before mounting the display board to the front panel. That's what I did. Doing so requires a little thought and a couple of extra assembly/ disassembly to make sure everything will

Just by way of update, I received the power bank yesterday. I hooked up my QMX to it using the USB-C to DC cable and voltage meter items I purchased and linked above, and also a 60w dummy load just to

Matt, be happy with what you have. The levels you report are very typical of the QMX line. No one will EVER tell the difference between 4.5w and 6.1w. The difference is miniscule. And, no one in the

Wouldn't it be loverly if the next version of the QMX had a display like the zBitx. Hans has done some amazing work with the QMX, with SSB and with bringing us some absolutely amazingly good quality

I bought similar one from QRP guys and yes the jumpers goes straight. For windscreen i used the one from Amazon, fits snuggly. 8pcs Headset Microphone Foam...

Hi Don, I didn't want to be invasive and have the risk of breaking something in the QMX to source a 3.3v line. I will stick with the 3v battery pack. The idea was to be able to use any generic

Hi Todd, Connectors were my first call. I resoldered them all again and also tested with display from other QMX I have. I got the same results. --------------------------------- 73 de Marek

...or north-korea...

Try aliexpress: https://www.aliexpress.com/item/1005006853529002.html Lots of sizes to choose from.

Hello Larry I know nothing about question one, but a wind screen for a microphone can be made from various bits of cloth (even old socks!) and the appropriate way of attaching it to the microphone.

This is a valid test for the 5V smps, if I understand correctly that you removed it and are testing it separately. However, the voltage and current you are using could potentially cause further

Update: I replaced L501 just because the broken corner was bothering me.? It didn't have any impact on the problem. I've ordered some transistors to shotgun in to the bias circuit.? I'll update