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Everything has gone textbook right for my QMX+ (kit built) for a few weeks now, but I knew it couldn't last. I was receiving with the USB connected to a Raspberry Pi 4 running WSJT-x and it seemed to

The NASA Workmanship standards show 100% fill of plated-thru holes as preferred workmanship practice: " Populated plated through holes (PTH) should exhibit a vertical solder fill of 100%, with a fully

MENU/Hardware test/Tune SWR/Select And maybe one more press to start. Press exit to return to normal operation

On a similar note, I would like to interface my QMX+ with my Hardrock 50 or my KXPA100 amplifiers, and having a way to automate the band switching would be of interest to me; PTT switching is handled

Gary, maybe we just have a different understanding of LPF vs BPF.? On QMX/QMX+ only the bandpass filters have taps.? The low pass filter toroids (vertically mounted on QMX+) do not have taps.

Here are more details on the Tune SWR function for you: Step 1a) after getting to the Tune SWR menu, turn the tuning dial.? That's how you tune to a frequency anywhere, including inside the Tune SWR

Most builders solder on the bottom of the PCB. However, plated-thru holes usually wick solder up into the hole, often being visible from the top of the board. I think quality PCBs and good soldering

Stan, I initial tried tweaking the LP filters with little effect. They are tightly wound and because of the tap little movement is possible. So yes I played with the spacing of the windings of the

So something is definitely wrong. C526 should show direct continuity.? And since the center pin has continuity to ground, it will also have continuity to anything else connected either directly or

John, M0JBA said: "My QMX+ with QLG3 also draws about 160 mA at 9V" Thank you John and va3rr. I am at ease now that someone stated that which I had missed... My QMX+ with an QLG3 probably requires a

But, like the proverbial chicken soup, it couldn't hurt, and will ensure that you have made a good connection as well as reinforcing the plated barrel in the hole. But it is not worth overheating the

I attempted this, but quickly realized I don't understand how to do steps 1a and 3. The manual, as usual, didn't shine any light on how to use the Tune SWR function.

That's what you can do with a normal radio, not the QMX.

On plated through hole boards as long as the component lead is soldered well on the top or bottom it’s fine I seem to recall the MIL standards back in the day wanted to ?have the hole 66% to 100%

His call sign and email are given on the first email in this chain. Just look. John Pokluda *KC1VPP* [email protected]> wrote:

I'm in Michigan. I'll shoot him and email, I appreciate the contact!

Hi, I beg to differ, as I'm planning on making my MRF101AN amplifier ask the QMX+ about the TX frequency continuously in order to make the Amp choose the correct LPF Using a serial connection between

A good skill to have on this message group/forum is how to search prior messages. There are several messages that have answered that question in recent weeks. Just type Erik into the search box. Stan

Anyone have Erik's Callsign or email address TerryNichols K8TDN

If you are in the US, you may consider sending it to Jeff W1NC who can replace the processor for you, and do other repairs. His info is good on qrz.com, and is very highly regarded for his services to