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Sorry gang.? I tried searching but couldn't find an answer.? About how long after purchase is shipping on the kit version of the QMX+? Wasn't sure what the expectation was. TIA! 73/72, David de

I have used the ProgRock2 in numerous projects (mostly Heathkits), and detailed how to use the device in a recent article for ER Magazine.? Some pointers that may be helpful: - The device isn't

FYI: The T1 autotuner when seeking a match results in very high SWR which may result in transients exceeding the breakdown voltage of the BS170.? This may happen faster than the QMX can protect

I got my QMX+ from Hans at Friedrichshafen , and have enjoyed the build. All was going well, with 4+w out. Then when I tried it with my Elecraft T1 auto tuner, it wouldn't tune. I suspect that the

To add a bit of perspective, you can get a pre-built QMX+ faster than you can get a KX2 or KX3. -- John AE5X https://ae5x.blogspot.com

In addition, the 5V board has a larger 5 watt rated zener diode D108. This is on plug-in PC board number 1 (Vcc) -Steve K1RF

Joan, I use a similar setup, though with an iPhone 15 which has a USB-C port. I tested several feedlines yesterday in the park and one thing happened consistently: with a shorter feedline that

There are a few changes for the latest SMPS boards that I have noticed. On original boards, the tantalum caps have a 'J' marking which apparently means 6.3V rating. The newer ones have an 'A' marking

Alex, Very nice job! -- 73, Dan? NM3A

Yes, you're measuring it correctly from the sounds of it. What's wrong? The receive BPF on the QDX HB is shared between 20m and 17m, so compromises had to be made. On this model, the BPF sometimes

How can one tell if they have the newest version of the PS boards? Bob KG5GTE

If you want it quick, building it yourself is a good option. That's what I did. I received my kit only a few days after ordering it. It took about 8 hours total to build my QMX (plus a little extra to

Dear all, I got iFTx a while ago and I managed to close a number of QSOs with my iPhone 13. This app is not great, it has some limitations, but it works. Last Saturday I tried to activate a summit

Hi Bjorn That will become version 1_00_021. 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl [email protected]> wrote:

Ok, Larry! So far I have ordered 8 items from QRP-Labs, but in this last purchase there was a lot of metal inside the box and I had problems due to lack of protection, you have 3 more chances. This

Our club FD is planned for the weekend, so I was pushed to finalize my QMX+. Probably this could give inspiration for simple upgrades of your QMX+, total cost were around 30 EUR. The dev-Board was a

This is wonderful news, Hans, thank you very much. These changes will be supported in the next release of DXLog <https://dxlog.net/>. Does the version have a number already? We would like to mention

Hi John I am curious - if I purchase the QLG2 GPS kit at the same time - with the QLG2 is not internal to QMX. QLG2 is external and you plug it in to the QMX paddle port (3.5mm stereo plug

Hi - I am considering buying a QMX (mid-band) and ordering it pre-built with the enclosure. I am curious - if I purchase the QLG2 GPS kit at the same time -? with the assembly of the QMX by

BS170 MOSFET Q5 controls the keying and is highly suspect given your discussion of the behaviour.? Q6 being partly bad or not being pulled on properly via? Q5 failure? would mean that the? Amp was