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Hi Team, I got a QMX that stopped receiving on 30m and 20m bands. It looks not a LPF issue. Could someone elaborate how QMX selects the RX bands with the Band_0 and Band_1 signals? See marked below on

Juan, You need a terminal emulator program that works with Windows.? I use PuTTy: https://www.putty.org/ Download and install the program following instructions on the site.? Once the program is

Hi Gerald, Recently got my pre-built QMX. Upgraded to ver 14...I'm having the exact same key click issue. Your recording is exactly what I'm hearing. I hope Hans is able to figure this out...it's

Hello. I would like to know how to access to terminal applications using Windows 11? 73, Juan LU9CYV

Juan, I should mention that what you described was a bug that has been repaired in the current firmware version 1_00_014.

Hello, again Juan, I suggest starting with the operations manual available on the QRP-Labs QMX webpage: https://qrp-labs.com/qmx.html You should upgrade the firmware as instructed in the operations

Hi Juan. When I first completed my QMX, I thought the receiver was dead as I could not seem to get any volume. I found that the volume encoder was defaulted to a setting of 0.25 dB per encoder step. I

I just realized that when the QMX starts while on the 20m band (freq 14.070) it has no audio and when changing bands it also has no audio, but when I turn it off while on a band other than 20m and

I watched the your YT activating with QMX.? Bravo! I am still trying to get my QMX Rev1 on the air.? Did you have any debugging to dowith your build??? So far I have not been able to get RF out

Hello Evan, how are you? Thanks for answering. Buy the factory assembled QMX. My QMX was built for 12V. I configured all the security measures. Set the SWR protection leaving a maximum of 2. Also set

Jeff Moore, Have you ever considered writing up your experience or contributing to Hans' troubleshooting guide? Seems a shame not to share the learnings from the 70 patients you have cured. 73, Mike

That is great. My SWR bounces around and sometimes shuts down the xmtr. I am ordering the diodes now. Thanks for the great tip. Mike Krieger WA8UOC

Jason, Thanks for the further details. I ordered the Pi Zero and display yesterday to make a DigiPi and this is the first time I’ve heard of someone using a QMX with a DigiPi. So I’m very excited

Please pardon the ugliness from the removal of one solder bridge and the attempt to remove another. I bridged the empty, un-soldered pad to C515.? If the Layout Diagram is from the top, I have a

Corey, Actually the setup was super easy.? There were some quirks but nothing I thought was a big deal.? Setting it up at home was easy, I'd just made changes on the fly out in the field and wasn't

I replaced the diodes in the SWR bridge with a matched pair of 1N5711 hot carrier diodes and now I have SWR readings that are essentially 1:1 on all bands. The supplied rectifier type diodes have way

Jason, I was looking at setting up a DigiPi with the QMX. Sounds like it’s been a difficult setup. Looking forward to seeing what setup ultimately worked.

Hello Jeff, thank you for you response. My QMX es Rev 2, firmware 1.00_011 and I bought it builded the factory. The only instrument I have is a multimeter. In my first message in this thread, I detail

Hi Juan, Did you build the kit, or did you purchase a prebuilt QMX?? If it is a prebuilt unit, I suggest contacting QRP-Labs to see if they will repair it for you. What was the voltage the kit was

Thank you, Dick! Dosen't work for me, but might be my windows machine. HNY! Simon