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Attached is a photo of my new SMPS board that plugs into JP105 on the QMX+ to replace the firmware controlled SMPS's for VCC and VDD. An archive of the complete Kicad project including a zip file of

My QMX+ seems to be working fine but I just did an SWR sweep and something looks bogus. The SWR is approximately correct for the chosen band but it is flat across all of the frequencies with only a

Well ... Certainly not hidden.? Both Assembly and Operating manuals for the QMX+, in all its versions, are in the section titled 'Documentation' on the main QMX+ web page.? GREG Yahoo Mail: Search,

This is a jumper on the board, it is only relevant if you have a GPS module.? It's mentioned in the QMX+ assembly manual which is hidden in the QMX+ section of the QRP Labs website.

What does Hans's comment mean? That there's no TX PWR & SWR display on the QMX+?

Because there isn't an order page. Just send me a private email and I will send you the details.

Jim - How do the LPF (Low Pass Filter) sweeps look for the upper bands?? If the low pass filters are kicking in a little too low, you can back out a turn or two on the LPF coils to raise the cutoff

I've tested it in DIGI mode. And yes, I'm transmitting on multiple bands and everything is OK. Another colleague is reporting the same issue on QMX+ Rev 3 with the latest firmware. I've tested it with

I have some tentative good news. I inspected and reflowed a couple of solder joints on the display panel and on the main board, and have so far had (at time of posting) nearly 25 minutes of

Dummy load maybe?

I got the gibberish as well.? Now I am nervous about broadcasting it. Is there any way to play back the message without transmitting?? When I try it in practice mode, it won't play?

I also got gibberish characters.? I am a little nervous about broadcasting them again, and can't figure out how to play back the message without transmitting.? When I try it in practice mode, I

I see power and SWR displays with my QMX+ firmware 1_01_003 in CW, digital, USB and LSB modes. I don't recall it not working on 0_27, I would probably have noticed. Have you configured it

Might not be the issue but .... Just the other day I installed the latest version of FLDigi on one of my Win 11 laptops. Then both the new and old versions of FLDigi AND WSJT-X quit recognizing all of

After playing with CW filters, I have a few comments... When a single (not cascaded/compounded) 300 Hz or 500 Hz filter is selected, the ultimate rejection is not great. I can still hear a moderately

Hi Braden Doesn't show on my pre-assembled unit, either. But since they haven't I've stated multiple multiple times that the firmware and the operating manual for QMX and QMX+ are the same. Where

Good point. I probably didn't run the sim long enough for that effect to show up. Tony AD0VC ________________________________ Sent: Thursday, April 3, 2025 7:13 AM To: [email protected]

Yes, probably so. Still, I might play with the idea a bit more. It's all part of the fun. Tony AD0VC ________________________________ Sent: Thursday, April 3, 2025 7:35 AM To: [email protected]

Doesn't show on my pre-assembled unit, either. But since they haven't bothered to put out a QMX+ operating manual, I can't be sure it's supposed to show.

Hi Braden The QMX+ has its own assembly manual. The operating manual is the same for QMX and QMX+, and any differences between them are identified where they occur. 73 Hans