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Say it ain’t so! ? I’ve emailed Jeff. Thank you.

Hi Anyone else like to share their AGC settings? I like a fast attack time and fast recovery...seems to work nicely for me. Threshold S 4 Slope dB per dB 50 Noise filter 0 Hang time 2 Smooth samples 0

Cal, Forgot to mention - if you are going to order more ATU's - please also use fabrication files from project's GitHub repo (version1.1-beta is fine). Those have no power supply components. -- 73,

Cal, Yes. That version1.1-beta branch has all the latest fixed fabrication files and firmware. - Latest version of a companion board V1.2 committed to version1.1-beta branch also has those two M3

Hi Casey, I had exactly the same issue.? Ultimately, the problem turned out to be a dead PCM1804 chip, which I was able to replace using a hot air rework station and some careful soldering.? To

An even simpler solution would be to use a 4.3V zener diode in series with the fan and run from the 9V supply. ? It would be dissipating 1/4 of a Watt at 31mA, so size accordingly. Nick G0OQK.

Mike Thanks for posting this picture. Ive had one of these apart in the past...I seem to wear them out quite quickly. Looking at your photo I determined that if I drilled a 1mm hole between the RHS

Unless this factor Dirk mentioned in a previous post is true. Based on my tuning experiments with the single button and trying to reset the ATU with a long press, I think it effectively goes into

Its safer to use 7805 on dc input jack and not trying your luck.

Interesting.? It looks like the processor is having a hard time controlling the 5V power supply.? It shows that it is using close to the 'max' duty cycle, which would be to increase its voltage, but

I am trying out my QMX mid-band that I built. It is connected to known working coax, to the QRP Labs dummy load I built last night. SWR is 1.4-1.5. Main issue: I can hear my key’s sidetone but

Someone Please Help ME! The QMX Mid Band model I assembled on Saturday also cannot resolve the loud RX noise. I was able to receive the CW signal sent by placing the QCX-mini next to it. I was happy

Hi Jerry, this makes sense. I will try to double check if the length is compatible with the three toroids and if they are okay I will use the smaller one for the coils you listed. Thanks. Giuseppe

Ok so as I'm a beginner as was misusing WSJT-X big time apparently, that's why I was convinced my transmissions didn't worked.. Now it looks like it's working as I made some contact. But still the 5V

That sounds like a solution! Kapton tape works for me for clamping pressure when testing without a case lid.

I had couple of field days - 4 hour long in ft8 mode and with those voltage drops. No spms or mosfet issues. My general complain about my own solution was that although ATU tunes the antenna - it does

Hi Sardar, Yes agreed, unless the sidetone is turned up loud. Also in received mode, if the ATU is still powered and not RESET the relays will be in the last state. 73, Dave

I do not think lm386n should exhibit high volume in TX mode. -- 73, Sardar (AC8L, 4K6SA, VA3DUA).

Dave, I did an empirical test of a continuous load by keeping Qmx+ in swr tune mode and playing with a non-resonant whip length to keep ATU confused. Then I repeated the same with 4.6w, key pressed. I

I have used Talentcell 3000 mAh packs on both QMX and QMX+ for over a year with good results. They come from Amazon and include a charger and cable..$23. Fully charged they provide 12.2 volts. Mike