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I have several of the ViFly for my FPV drone hobby builds. Hadn’t considered using one in the application but I bet it would work great. It trips very quickly, but I haven’t measured the exact

Ok. What happens after the CAT test and you push PTT, does it turn red? Another click on PTT turns if off. Tested your radio config and it works FB here. FYI, if you have the latest Wsjtx there is a

Do a factory reset and try again -Mike/w1mt

hello Rick, Hello Hans, this is exactly what I was aiming for myself: a temporary replacement of the smps boards until all other smoke tests have been succesfully passed. Hans: really no offence

Hi, Chris. Thank you so much for your reply. Here is my PC audio setups for the QDX.

Certainly. Here are my setup pages for Radio and Audio. When I test the CAT, the button does turn green. I am able to change frequencies through WSJT-X.

Check that the QDX audio output in the PC is on.? I had this with my QMX and it turned out that the QMX sound output wasn't turned on. Settings - sound look for the QDX and check the volume is 100%

Wayne, What did the CAT Test and PTT Test show in the Wsjtx Settings/Radio page? Maybe post a screen shot of your setup. 73, Cliff, AE5ZA

Rick, Second arrived! Been gone all day and just got back. Thanks for the time, effort and the stuff! One going in as soon as I recover from my day trip! Will report soon! Karl

I can take a look at it for you if you want. ?I’ve fixed about 20 of the QMX rigs for other hams.

OK all. A big plus, but my troubleshooting isn't totally complete, yet. I now can receive and decode! See below for a screen shot. As far as transmit; though, I'm still not there. I can now transmit

Barb, Documentation for Dimension 4 does not indicate whether it is compatible with Windows versions beyond Windows 7 and 8. Do you know if is compatible with Windows 10 and Windows 11? -Steve

I have done some more testing and there is power to pin 5 (V_IN) of the Plug-in PCB #1. However, when a long hold of the left encoder is pushed there is no output on on pin #6 of this board. So for

Thanks Rick. I set the supply to 25mA wholly expecting it would immediately trip at the excess current demand of the QMX. BUT the power supply did not trip nor did the meters move off of the peg. So

It counted up to a 100 , then I just got a blank screen and the QMX crashed

Taking my own advice I just swapped the CPU that had been involved in the problem back into the set.? ? ?After set-up It all works fine so probably only the 5351 was damaged.

I have used the EFuse products in MIL SATCOM power supply boards and they work great.? Depending upon the model they have under/overvoltage lockout, latching or retry on fault and inrush current

Well Charles, I thought I wrote a reply, but I can't find it. I did follow your instructions and found I can adjust the output audio. What I find, though, is I can adjust it to get a full bar graph,

Thanks all. I did look at the schematic when I found continuity all the way around and thought it was all connected, but I needed to make sure. I'm tracking back an issue with my QDX now and am just