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The SWR protect was enabled, set to 3 during menu operation while it was working. The system does not even turn on to allow firmware loading when the forced mode is enabled with the jumper.

Dear qmx-users, dear Hans, did anybody try a straight key? I'm not sure if this a issue with the alpha-firmware as I hadn't tested that before, but it seems, that the config for a straight key

Congrats, John! de Charles K5KXJ

Evan, The problem I ran into for the 1 mW type mW-Wattmeters was that after adding the calibration circuits to the AD8307 parts and having the boards prebuilt with?all the SMT components on the

Success! After rewinding L2 with 9 turns and a very small adjustment moving the coils around on T1 I was able to Peak the BPF. I was able to receive a local signal? and was supprised at how clearly

Hi Ernie - Were you operating as N2DGO? I checked my WFD database to see if you were one of our 105 CW contacts from MDC and no joy. -Sandy KB3EOF operating as K3ERM from MDC.

Thanks John I had not seen that NASA document before, most excellent and worth a read for everybody. I've been soldering for over 50 years and just learned something new! 73s Ted 2E0THH

Kees, I have not used it below the 200mW level, so I do not know. For power below 1Watt I connect my scope to the power resistors to measure against a 50 Ohm resistive load. 73 Evan AC9TU

Evan, Thank you for the response. I thought that one only went to 200mW minimum. What happens if I want to try 10mW and then go to 25mW ? I know it's the low end that will have problems with the

Kees, I use this combination SWR/Power/Dummy load from QRPGuys: https://qrpguys.com/qrpguys-power-swr-dummy-load It works well for me. 73 Evan AC9TU

it was on for me for sure when it was last working. If it's the same as what I'm seeing, the CPU doesn't come up at all, so no way to check for sure and no way to load new firmware or anything.

This gent has gerbers, but uses a Pi-zero microprocessor https://github.com/kholia/G8GYW-QRP-RF-Meter

73 Kees K5BCQ

What I'm looking for is Cost? ? ? ? ? ? ? ?<$50 total Impedance? ? ?50 ohms Resistive (note: must be 50 ohms for correct readings) Portable? ? ? ? ?battery operation Resolution? ?

This sounds like the same fault I have, but I haven't figured out a fix yet. Have the exact same ~0.7v (diode drop??) on the 3V3 EN line, but it doesn't bring up the CPU.

There is very little chatter about the QCX-Mini more about QMX issues.? I wanted to take a moment and acknowledge the outstanding performance I received this past weekend for Winter Field Day.?

Was the SWR protect circuit turned ON or OFF ? Might reload the firmware to factory default status and see if it comes ON. 73 Kees K5BCQ

I completed the 20-10 version a couple of days ago and on power-up the firmware loaded and all was working fine. It ran for over an hour while I went through menu settings, etc. I ran through all the

Ok, thanks for the help.

Hi Larry, I did not use WSJTX, is was a CW activation. Best, Matt