Hurray! My low-band 12V V3 QMX is up and running after clearing the following hurdles:
- no startup. Solved with the help of a decent USB-C cable
- deafness. Solved by properly scraping and soldering L401 and T401
- no output. Again my lacquer scraping skills (T501) turned out to be insufficient at the first try
After fixing the above, everything worked like a charm! With implementation of the winding mods of JH4VAJ the output is now: 80/60/40/30/20m = 4.4/5.0/3.8/5.5/4.6W, fine for me.
The SWR-protection is extremely helpful. I have enjoyed using a QDX and multiple QCX-mini's for a few years, and gathered >5000 contacts without having to ever replace a BS-170. But there was always that nagging thought about a disconnected coax or a too high SWR. Now I can afford to be a bit more sloppy without fearing destructive punishment :-)
Hans, thank you so much for this fantastic, compact, feature-rich rig! Thank you, QRP-Labs crew for doing such a great job in assembling and shipping!
Now on to the high-band QMX kit that's ready on my workbench..
73, Klaas VA3ERW
Klaas, VA3ERW