I received my QCX Mini 40m (REV 2 board) kit in the mail a couple days ago and finished it up last night. On first power up everything appeared to be fine (no smoke, backlit screen showing bootup text

Hi, I have recently completed a Ultimate3S, and have it working well, and talking to the GPS module. My main interest is WSPR, and I have it transmitting in this mode, but I am not getting recieved. I

When I started to align my 10m QCX mini I noticed that the readings for I-Q bal (menu 8.8) appeared to be unstable. Several days on and numerous re-solderings and measurements I am no further forward.

Hello, I have had some success modifying my three QCX Classics to have AGC to prevent eardrum overload. I've tried to keep it simple and so it uses only 6 additional components, 3 capacitors, 2 diodes

ANNOUNCEMENT Steve Johnston, WD8DAS, has purchased the AF4K Crystals business and will be returning it to service as soon as possible. AF4K Crystals has been a source for vintage and modern radio crys

I have a QRP Labs Clock kit and VFO/Signal Generator kit both connected to the same QLG1 GPS receiver. They are connected to data and 1PPS from the GPS. The UTC display parameters are the same. Both a

I have a friend who has assembled a QCX-mini, and upon power up see the attached picture on his LCD He has tried swapping in another LCD board (from a second yet assembled kit) and gets the same resul

Hans suggested test for the Op. Amps was timely as I was just starting to build my QCX mini from the first shipment. I have found that Q10 does not show a diode voltage drop from any of the input or o

I'm so new here I don't own a QCX Mini yet, but I expect to get one soon.... can anyone tell me what the shipping costs are and are there costs to get it into the US? I have to have all me figures rea

https://youtu.be/bZqfyy1kBzU

Hello all, I just passed my ham exam and while I wait for my callsign, I am having a think about my future station. I've decided that I want to build kits and the QCX mini seems like a good start as I

I got my 25 MHz TCXO module in the mail the other day. It works like a charm and is a must-have for perfectionist like me who just can't bear seeing drift reports of 1,2,3, or 4 Hz/min in the WSPR rep

Hello, My QCX Mini 40M turn on properly, however when I start the alignment, I don't hear the sidetone when I activate the menu option to calibrate the BPF; I can get 08, but no sidetone. Also, I noti

Hello everyone... I received my qcx mini on February 25 so it complies with the latest revisions. The picture in the instructions show D33 solder points side by side. My pcb has them vertically. Does

I would appreciate knowing if anyone has encountered a WSPR call sign error message  where the call sign appears to conform with the instructions...no spaces etc My call sign appears correctly on the

Hi all I have finally uploaded a video on testing the QCX-mini, the test jig itself is the main focus of the video and is very neat and interesting; 54 pogo pins connect the board under test, to the t

As these QRP kits are low power a lot of the commercial SWR/Power meters will not read these low power levelsand when they do they are not overly accurate. May I offer a suggestion which involves a li

On the reverse side of the LCD Display board are 6 metal tabs that hold its metal bezel in place. During construction, I discovered that two of these tabs interfered with C24 (470) and R24/27 (multi-t

Hi all. I want to source an identical (undrilled) QCX Mini aluminium enclosure. It must be the exact same dimensions. I want to build a 3 cell LiPo battery pack inside to match the rig perfectly. Usua

Hello All, I recently posted "A simple QCX AGC" for the QCX Classic. I have now successfully ported that circuit over to the QCX Mini. Because the Mini is so small this was a more difficult project wh