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I have a Low Band and a High Band QDX I would like to sell. Both were tested on 9 volts and a Lipo Battery, 13.3 volts into a dummy load and tested on an antenna for spots. I have only used these as

Cal, Stan, Could you draft your schematics on a piece of a napkin and submit a photo? I am not sure I am visualizing your ideas over the messages? -- 73, Sardar (AC8L, 4K6SA, VA3DUA).

To me - version 1 design is frozen :) Unless catastrophic discoveries are made with new PCB's that less likely :) However, we should continue improvement discussions - that is the sweatiest part of

Hi, Set "Band limits" to "None". P.51 of the operation manual v.26 refers. Regards, Jonas Den m?n 18 nov. 2024 kl 19:21 skrev Zrinko Ivan Vukoja via groups.io <ivan.9a5czi@...>:

My new QMX has a strange tuning problem on 60m only. It is not encoder problem. Tuning has pattern that it follows and it is repeatable. You could see it on this short video:

Quoting myself (again)...and hopefully more accurately asserting: The BMS is not a charger. The Drok regulator AND a suitable power source provide the missing charger functionality, as might the

I completely agree, Cal.? Thank you for the great work you are doing. Stan

Stan, RR--I'm not going to cut the center pin from MY main board! I'm quite happy with my power cord inline Drok adjustable regulator solution to these problems. With the correct settings on the V and

Another solution that we could consider is to put a suitable diode on the companion board, feeding into the + terminal of the BMS.? The other end of that diode gets hooked (using an 18 guage or so

While building and debugging my QMX (1_00_027 firmware) I had a confusing moment when I put the transceiver into Practice mode, forgot about it, and then tried to use the SWR Measurement function.?

Sorry that I forgot to take the photo last time, Sardar. I'll do it next time! 73, Cal (AD8Q)

On Mon, Nov 18, 2024 at 07:02 AM, <me@...> wrote: After burning my short 0.5mm trace with too much current from the high charge voltage I was using, I replaced the trace with a 28 AWG wire and

First I messed up my antenna is: MFJ-1982LP, END FED, 1/2 WAVE, 80-10M, 30W WIRE ANTENNA Not MFJ-1984LP. The coil has 6 turns. Thanks, AC4OW, Sam Thanks, Sam Hanie samhanie@... 623-219-8130

The 3:2 transformer has two symmetrical windings. One, the primary has 3 turns, the other 2 turns.

With LM386 instability (which I have run into over the years), the series RC has to be matched to the speaker of interest. Some standard values such as 10 ohms and 0.05uF as indicated in the data

You are correct in your statements regarding the photos.? It is symmetrical. The 3:2 comes in the following steps, when you cut the twisted loop (becomes the two ends of the primary), and re-twist

Hi Sardar, please don't get my above comment wrong. I fully agree with you, it's a low cost, low effort solution, which can work for most cases. I just wanted to mention that this is not a "consumer

Transformers from old wall power bricks have good wire in them a lot of times. -- 73, Dan - W2DLC

Great save.? You have nice tight winds on that transformer.Perhaps a bit more than the recommended 3 per centimeter being enough.? I too snapped a wire on that assembly on my first QMX build. I did

It's symmetrical.