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If button status changes while it is just sitting there, it suggests a temperature-related bug.? Such a thing can happen with a 'cold' solder joint, or bad connection through a connector.? I would

Bill, N4QA/QRP <wb4hio@...> added the photo album QMX-PLUS-FT8-OKI ( /g/QRPLabs/album?id=301573 ) : QMX-PLUS-FT8-OKI

Thanks for that recommendation! I just might do that. I reached out to my local club and there is someone here with a working qmx kit that is willing to let me take measurements and troubleshoot. One

Thanks so much Alan! I’ll give that a try. 73 Tom N5AMA

Mel, Yep, my audio is poor also. Since calibration never completes, I turned off the predistortion. The audio is really poor if you turn off mic agc, then it is just loud noise transmitted. With agc,

John, Thanks, I'd often wondered about all the recommendations for these devices. I was tempted to try them but I will not be using them, LF is of interest here. 73 Alan G4ZFQ

Sepehr The answer is 9V.? There is a little latitude maybe 10%. The issue is higher voltages run higher power with the finals and will increase current to the potential failure point. So the BS170s

Tom, The Windows version https://www.putty.org/ is identical except that you enter a COM port number seen in Device Manager when you plug in the Progrock.. The instructions in the manual should be

Wlado, I agree with John’s analysis. ?This is supported with my personal experience with the two devices I listed. ?Granted that I live in a high arm environment around Chicago. Ther may be some

I am a newbie and have purchased three of the ProgRock2 units and planned to use them as crystal substitutes for some HC6/U crystals I’m unable to obtain (without waiting a long time for these to be

Most of the noise produced by these converters is below 5 MHz. Very little at all is produced above 7 MHz. https://ae5x.blogspot.com/2020/05/cheap-dc-dc-converter-for-qrp-with.html -- John AE5X

Evan: Will this cause additional interference due to the use of such buck/boost converter? I like this solution but I'm concerned about the additional noise and birdies when RX. I would be grateful

Congratulations Rick. Mike Krieger yahoo.ca@groups.io> wrote:

The last screen shot! 73 Azgael

Finally success following the power pad did help. Surprisingly enough there seams to be a broken via or track connecting source of q102 to ic101 to input. ?Now I am a bit concerned with other issues

Good luck with your QCX+. You do need good eyesight and a magnifying glass to identify the parts. I built my QMX and QMX+ at eighty. They are great kits. I have made several SSB contacts with good

Pierre, I have found that using a buck/boost converter when connected to batteries is better.? That allows constant voltage to the QMX until the batteries can not supply

Hello Martin, If you are on a Windows version, have you tried using the "listen" feature on the sound system?? How you get to it is dependent on your version of Windows.? For Windows 11, it is

New broken QMX+, need repairhelp in Sweden. Regards Roger SM7RYR Contact: sm7ryr@...

When I have the QMX+ set up for WSJT-X I have to select the QMX for Audio in and out.? Now I don't have the sound from the Pc any more. Is there a way to have both? -- Martin DK3UW