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This is the golden age of electronic experimentation. I can design a PCB in Kicad and have 5 boards built and delivered in a week or two for $5. Parts for a complete transceiver similar to the

Chris, reading the firmware release notes, I see that message editing from the menu was broken in firmware versions 24 and 25, and is fixed in the current version. So you will need to update firmware,

Inquiring mind wanted to know Thanks

You can do this yourself by disabling the unwanted bands in the band configuration screen, then modify the filters and filter selections to be specific to the bands you want.

You can search QU-7025 to find it. It's cheap and not any fancy, but works. I added the guardrail to prevent the levers from being derailed accidentally. 73, Yoon KM6KJI

Agreed.? I think making a option for say 160-20 of 40-10m or 6m would be nice.? Then maybe ea. filter only has to cover 2 bands Mark N5MF

Mark, I have had the same problem trying to get 20, 17, & 15 m to peak up in power. Whenever you get one band up, the others are down. I don't think there's a good solution, but it's well under 1/2 S

Hello Everyone, I just fired up my QMX with Firmware version 1.00_025 and tried to edit the message memory. Adding characters works fine (via tune nob as well as vis CW keyer). However, while using

I'd like to know the firmware and hardware rev from anybody who has trouble with the QMX 3.3 and 5.0v power supplies. Mostly, I'd like to know how often these failures occur with the most recent

Here is my post for reference /g/QRPLabs/message/139305 Mel.M0KMD

And here I always thought those dual gate FETs were 40673’s. Ahh, the good old days when parts were visible and the part numbers could be read by the unaided eye. Dave

Ok thanks.? I figured as much.? Not a big deal but it is curious. Mark

Hey Mark, Congratulations on your successful build! My QMX+ also produced very silimlar output. Yours being slightly better results. I built mine for 9v and posted my results a few days back. The

2nd Jeff Moore can fix this!

I don’t know, Jerry, maybe not the norm, but a significant proportion of hams built their own gear back then. “Solid state design for the radio amateur” sold more than 50,000 copies, the ARRL

Great idea using the foam board. I do something similar when winding toroids in that I lightly tape them down with some painters tape on a stiff piece of a manila file folder. I write the particulars

YEA - just finished QMX and all diag look good - nice to have itt work 1st time - all that triple checking paid off. BUT: - had current limit too low - so it would not stay booted - My 1st USB

Just wanted to say that the QMX+ was a pleasure to build and, now that I've actually read the operations manual, it seems to be working as advertised!? With the GPS finally syncing up. My power is

I wound the torid in tight groups of 6x - Note the 27 turn fills up the inside of the torid. - When I verify the groups fo 6x.. it is not easy to count - but I find the middle of the 6x winding - and

I GIVE UP! Pressing the encoder the +12V pad showed 11,5V, Vdd 0,01V and Vcc 1,15 V. But then, possibly the DMM probe shorted the Vcc and Vdd pads of JP105... Every voltage is now zero, the encoder