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I have much the same experience. CAT is lost. Sometimes around 3 startup attempts before it works again for a while. Several times on startup or during an attempt to recover from lost CAT I have seen

Thanks guys! I will try to make sure it’s parallel to the PCB. And maybe use an enclosure to check if it fits nicely. 73, Victor PA8MM

Hi Hans, When it does happen, the LED is on solid, with no flashing.? I wait until it is solid before opening WSJT-X.? Then I either get operation as normal or the input bar is either high or low

Hi Evan To know where QDX is in firmware update mode or not, you only need to look at the status LED. A slow continuous flash means firmware update mode. In power up in normal operating mode the

Hi Hans, I still do not know what the underlying issue is with the two Windows 10 systems that I have tried so far.? I can say that I can now reliably connect and use the QDX on one of them, it may

I didn't know gas tube lightning protectors before reading here. Does the ground connection need to have a dedicated grounding (hard to achieve from my flat on the second floor of a bulding...) or can

Hi Evan I did test on Windows. It takes a while to boot up but if you're patient Win10 does work OK. I find it frustrating but it works. I didn't have any problems connecting or operating QDX from

It may seem counterintuitive, but this tool works better if there is plenty of solder on/in/around the hole. The reason is that with more solder, there is more contact with the tip of the desoldering

Jay, I have found a tool like this to be the best: https://smile.amazon.com/ECG-J-045-DS-Electric-Soldering-Temperature/dp/B00068IJSG/ Note: This is not the exact tool that I have, as I cannot find

Thanks for the advice, Evan. How did you clear the solder from the BS170 holes? I tried wick and was only successful with 2 holes. I didn’t want to be too aggressive as the pads were starting to

Hello Mike, As others have stated, it MAY be OK.? If it were a kit I was building I would strip the wire from the toroid, deburr the toroid, and then rewind.? If you will not be moving the QDX

I too had an issue with sharp edges on T1, even after a quick deburring.? I noted the issue and had to strip out the wire, do an aggressive deburring, and replace it with fresh wire.? Good thing I

I put a 100 ohm carbon resistor in series with the inductor and do a simple Smith chart centered on your target frequency. Set Marker > Smith VALUE > R+L/C. ?Put on your glasses and read the upper

Hello Jay, FWIW, I had to replace IC5 after determining that it was not working.? I removed the 4 BS170 MOSFET finals and then tested the output of IC5 to the gate pads.? One side had nice square

Hi Ben, Congratulations on finding the problems and the QSO. FYI, I too have the issue of needing to power cycle the QDX a number of times to get a connection.? I have the issue on more than one

No, still waiting on mine.

I resolved my problem today, not a hardware problem (the rabbit hole I went down initially) but a computer issue. ?Setting both the computer audio output and the power level in WSJT-X at maximum, and

Good idea, Jeffrey.? Thanks. Mike

Thanks, Julian.? T1 primary and secondary are not shorted so we're good there.? We have not gotten to T2 yet.? We appreciate your feedback. 73, Mike KK7ER (and Wesley, N7BIN)

Has anyone received a case for the Ultimate3S lately?? It was pasted off the the airmail carrier 8 weeks ago today. The latest tracking is attached. Thank for any information you may have. p s I