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Thanks Chris, To be sure, you mean to place a jumper between the two pins outlined below?

Hello Andy I suggest a factory reset, the EEPROM setting for the long-press delay could somehow be 0 instead of the normal default 300ms. If you can't achieve that in the menu, due to the issue, then

I've just built my first QMX, the firmware install went ok and it appears to boot fine. ?I am finding that the buttons and the clicks of the rotary encoders are all registering as long-presses. ?Can

It appears that the current you observe is correct for the draw through R103 and R104. If absolutely sure the voltage is not reversed then you can see if it turns on with the source to drain of Q103

My QMX is working good on FT8.? I'm using TS-480 for the rig.? The only issue is that if I enable SPLIT - RIG or FAKE IT - the QMX does not always return to the correct frequency after transmit. So

That, is brilliantly simple! Or simply brilliant. I'll give it a go. Thanks Don! -- Randy, N4OPI

Hello team, Wanted to post a very positive service experience with Jeff Moore, W1NC. Received an assembled QMX that decided to become a paperweight very quickly. Contacted and sent the QMX to Jeff for

Hi Daniel and Dan We got 25 QCX-mini kits prepared using available parts on hand, and the 500 new PCBs which arrived here on Friday. My team also built three and verified they work fine, and also ran

Great news! Getting the soldering station hot :). 73, Dan VE7DAQ

* The supply voltage is not reversed. * There are no shorts between any of the pins of the two power supply boards * There are no shorts between Q103 and Q105 - Are there any particular tests I should

Are you sure you don't have the supply voltage reversed! (If so thank Hans for the reverse protection) Sounds like an issue with Q103 or Q105. I would check that there is nothing shorting between pins

Hello Ryuji I'm not sure there's any politicizing. I just felt as the designer of what is, I believe, a high performance transceiver, I should explain why L401 was used and why I think it is important

Hans and Don, I totally understand what you are saying, but what I said is actually on the same point. The discrepancy between the RMS power and "power" converted from the peak voltage is of the same

Clarification: While holding down the power button, the DMM on the current setting reads -.23mA. When I let go of the button, the DMM reads 0.0mA.

Enameled wires have different characteristic impedance depending on the wire thickness and the thickness of the enamel coating (thickness more important than material in this case). Mixing slightly

That's a great story.

“Awesome” only gets close! Wow! Amazing! Love it! Dave

I would check the main board for shorts or near shorts on 3.3v and 5v to GND. ?If that looks good, replace the SMPS boards. ?They can be repaired but it’s not worth it since Hans will sell you a

All, Let's not politicize an engineering decision. It's free to keep L401 or delete it in your own QMX build for self-satisfaction, but I feel that this thread has become campaigns trying to persuade

Try using it with FlRig. 73 Dave. -- David Thomas M0OOR