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Also do you have the internal GPS? if so unplug it. Also is it in a case? If so remove it.

Michael, where did you connect the GND probe of your Meter to the QMX GND? 3 V ... 3.3 V would be ok. This signal comes direct from a controller I/O-pin and the controller runs from VDD 3.3 V. 4 V is

Also replug the front panel and look at the display connection and while it's out check for a tiny bridge or a whisker that may be in there. That will answer a lot of questions before real assistance

Alright, did the reset, correctly selected the QMX+ version from initial selection, and had about 2 minutes of solid listening time to a QSO on 20m. Thought maybe the reset was going to fix it until I

Will try doing a reset next.

Just tried it - the board gave me enough uptime that I could send a few dahs. It looks like I'm barely putting out any power, but I did see the FWD meter on my ATU bump a little bit. I didn't wait

Also is there time to do a reset before the pro analysts see this post? That will give you a headstart! I did notice a little quirky behavior on mine, right after I first powered it up.

Do you have enough time to transmit into a dummy load on 20?? Does it kick out, immediately?

I have a rev.3 I didn't burn in yet. So let me see if it is working HiHi. You made me think ?

That pulsing signal like CW is what I get too, so I don't think it's external. It doesn't change with tuning, so it seems like something getting injected into the audio. -- 73, Dan - W2DLC

Hi George, The 12V power source is a 6000mAh Talentcell rechargeable battery. To connect power to the radio, I'm using the included DC plug that I got as part of my kit, which I've joined to one of

Hi Michael, Please describe the power source in detail. Including DC plug. 73, George K3GK

I finished my QMX+ kit 2 weeks ago.? I built it for 9V, and held my breath as I powered it up for the first time.? ?Everything seems to work fine, and all bands receive and transmit.? I called CQ

I tracked it down with a portable radio with shortwave with a signal level indicator (a must).? It was not easy since the RFI was coupled into the power lines and shrewd up many houses away.? The

Thank you for reply, now to figure out where is it ? it will be hard since it shows once in a while and it lasts 3-5 minutes

I think it can be corrected with filters or settings somehow. When I change to DIGI mode on the QMX, a lot of these noises disappear. In the image below, the bottom portion was DIGI, the top portion

Solved. Q502 was missing.

Hi all Since I have received several inquiries about items not shipped: we have Eid public holidays this week which is why there were no shipments on Monday and Tuesday. QRP Labs office re-opens

Hey all! Got my QMX+ rev 3 last week and have had a blast assembling it over the past few days. Finished it last night, booted just fine, and was able to tune some CW on 10m with a big grin on my face

An advantage of diodes is that they are a simple 'linear' solution, but yes, as others have noted, they will generate heat.? Each diode drops about 0.6V, and during transmit the radio consumes less