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Chris, Thank you for this post.? My QMX had the "dancing" SWR issue. A Factory reset calmed it. Where the SWR was varying 1+, it is now varying? 0.01.

Hi Joe, I use my MacBook Pro with Sonoma to connect to my QRPLabs Radios. The radios just connect with a USB cable and there is no need for Macports or any other software. See below for my macOS use

While working on another problem I had a strange issue with bad QRM coming through the radio.? I tried a number of things, swapping around coax, adjusting location of things, but couldn't supress

Hi folks, I've enclosed a few photos of my fix for the SWR/EFHW problem. The images show the choke I wired up (with -30dB suppression on the NanoVNA), and a little box I made to hold it all

Hans, Thanks for the response. These PCM1804 failures are puzzling. Jerry, KE7ER

It's normal to get slightly higher output power on the lower bands, for the same input voltage. 72/73 de Enzo M0KTZ

Thank you Dan, your input is much appreciated. 73 es dx.

The Agency (TV Series 2024–) [email protected]> wrote:

You need a trigger board or cable. Just make sure to plug it in to your PD power bank first, so it will make the negotiation before plugging into the radio. -- 73, Dan - W2DLC

Hello Jerry It's wrong. I also thought like you, however I was not informed by my team until recently, that QDX had been failing their pre-shipment testing. It seems that our testing of QDX and QMX+

Is the QMX *itself* in any way capable to negotiate the required voltage with the power bank PD? In other words is a 12V trigger cable required or not? I feel more comfy with a trigger cable as it

Beautiful work on the 3D printed case BUT: I was doing some testing with my QMX+ outside of the case and with any transmission the RFI interference caused problems that disappeared when I put it back

Hi Roland, I suggest starting with the YouTube video from NA5Y: https://www.youtube.com/watch?v=rUVLphjKaFQ Several tests can point you to the problem area, even if you do not have an

It seems to me that "severe" and "awful" are extreme adjectives that deserve comparison.? "Awful" compared to what?? For example, Thomas Witherspoon often praises the audio quality of the Penntek

Thanks Paul! I found it in the morning light…. Brent

Good morning/evening Nick. Yes, I’ve downloaded the assembly manual for PCB Rev 3 (document version 1.13 published 14-Mar-2023) and was at page 38. I was also using a pair of June 1956 eyeballs

Hi Bruce; yes I’m following Rev 3 assembly instructions.

Hi Aki, I removed C3 and learnt, that it is okay. Resistance? between R2/R3 and D1 is zero, it is conductive anyway, also when C3 is removed. So I reinstalled C3. 73 de Roland

Are you following the correct version assembly instructions ?