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Bekir, You are saying that the PC is not showing the QMX+ as having a COM port? Here is my updated page for installing the driver

Damon, You previously said: " After replacement of all, I left off the PA’s and the radio powered up fine. All RX alignments were completed satisfactorily and performance is impressive. The new

Here: https://s3vi.ndc.nasa.gov/ssri-kb/static/resources/nasa-std-8739.1b.pdf A good visual guide to soldering: https://workmanship.nasa.gov/lib/insp/2%20books/links/sections/files/601.pdf 73, Don

Note also that there were firmware versions which addressed key click issues. So check the firmware version on your QCX and check the firmware revisions history to see if anything affects it. It could

Thank you for sharing the case! Would it be possible to share the folding legs and accessory platform?

Hello Charles There is no ADC involved. All transfer from the PC to the QMX is digital via the USB audio sound card emulation of QMX. So what happens if you have a sinewave at full 100.0% volume, the

Thank you Ludwig. I have already done those. Furthermore, I had also tried updating the firmware, although not necessary, to see if the PC-rig connection is working. QMX+ was connected as an external

Have you checked that the correct devices are still selected in WSJT-X? 73, Paul — AI7JR

Space just under the display is perfect. Nice woodworking?

I can’t paste a link but if you search: NASA-STD-8739.1 It will take you to a wonderful PDF that explains everything to do with staking down electronic components.

Nice work Dan!

Damon, blinking "6" only in TX mode or also in RX mode before try to TX or after try to TX? For TX mode 250 mA is much to low and the power supply will hit the limit. When the power supply is going

Bekir, QMX audio devices and the QMX serial port are different USB devices. Each needs his own driver. The audio drivers already are present in Win7, Win8, ... For the serial port please read QDX QMX

Adam, I had a Yaesu FT-891, and the receiver is hot, maybe too hot! Also it has a strong audio output amplifier designed to mobile use. I sold the FT-891, even though I loved it, and bought a QMX,

Adam via groups.io <qrp-labs@...> wrote: Something went wrong. There was another line here: "From my understanding (correct me if I'm wrong), the STM32 shipped with". I guess

Adam, The receivers in my QMXs compare very favorably with my K3, which has a superb receiver. I really don't think the receiver is a concern once the QMX is finished and working. -- 73, Dan? NM3A

Has anybody got a solution to my problem? 12 Oca 2025 Paz 21:58 tarihinde ta2rx bekir via groups.io <ta2rx.bekir= [email protected]> ?unu yazd?:

Howard. If you are talking about actual key clicks on the transmitted signal that others would hear as wider than normal CW reception, then you need to look at the key shaping circuitry around Q6,

My QMX looked exactly the same and worked with no issues. As others have said the primary solder pad / connection is on top of the board.

In addition, I discovered almost immediately that too much audio drive into the radio for digital modes will inhibit transmit.? I thought something was wrong with my QMX when it wouldn't transmit but