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So I have had a bit of a dig around; Q507 is fine, as is Q508 so it looks like the finals failed due to being over-stressed by a calibration cycle...why this should occur I am not clear but hopefully

Troubleshooting linked on the QCX page https://www.qrp-labs.com/qcx/qcxtrouble 73 Alan G4ZFQ

I tried a Baofeng speaker mic with mine and the audio quality is not very good. It is usable but to me it doesn’t sound good. > > > I bought mic kit from QRPGuys and am very happy with

Hi, I just completed a build of the QCX-mini. When powering the device with either 7.5V or 12V battery I get LCD top row is blocks, bottom row is blank and nothing else. I have checked throughout for

I have good luck with my ZM-2 ATU. Google EMTECH... they come as a kit or pre-built. Jerry WB7S LICW/SKCC/CWOpp -- This email has been checked for viruses by AVG antivirus software. www.avg.com

Hi, I tried to use a standard Baofeng micro , the one with a small loudspeaker inside that is not usable with QMX. I have done the easy mods to make possible using this mike with the QMX. No a big

1_01_004 - menu item history fix would be very helpful With the addition of new items under 'Hardware tests' in the menu, we can now no longer just click twice on the menu button to get to the Tune

Awesome! Thank you! -- 73 Michael N6QP Up in Thin R

Menu -> Hardware tests -> Tune SWR from pg 56 of the operations manual: SWR measurement The SWR measurement tool enables the transmitter at a reduced supply voltage determined by the operating

How do you get to Tune/SWR mode? I don't find it in the manual. -- 73 Michael N6QP Up in Thin R

Nice! QMX to QMX. That’s cool.

Did you try tuning using the Tune/SWR mode?? In that mode, QMX uses reduced power and turns off the swr protection. That may work with your LDG tuner.

Is there a manual tuner that ppl use with the QMX+ - I tried using my LDG Z817 and it seems to go into protective mode for final. too high swr. Im too old to build and am looking for something retail

I took my QMX to Mt. Porepunkah in North Eastern Victoria for some SOTA and worked another QMX on the North Island of New Zealand on 20m (ZL1HIM). Clear audio both ways. Cheers Glenn VK3YY.

Yes, what Ludwig recommends is important.? A failed Q508 could be the cause of the problems, with D516 being the trigger. Here is one theory of what happened: a) With D516 either not connected, or

You should check Q508 in RX and TX mode (voltage at S, D and G). To cut the high current lift a leg of L502. A broken Q508 could be a dangerous load for the PA and may affect the RX path. 73 Ludwig

One thing I have seen is that windows will install a new physical com port with the same port number as a virtual port I have defined with vspMgr. My solution was to delete the virtual port with

Thanks for your warning Ian. Don't worry, why should I connect my field operation computer to the internet? In my life I had to deal with at least 13 OS and version of OS (not only MS). It took me a

Interesting. I am running the same OS build here with no USB related issues on my QMX+. I have been running two COM ports to the QMX+ for the past several hours without a

Thank you, Tobias. Makes me feel a bit better not being in left field, alone. 73 Dick, K5AND Sent: Thursday, April 24, 2025 3:47 PM To: [email protected] Subject: Re: [QRPLabs] #qmx SSB Firmware