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Hi Donald.? Quite true about the voltage acquisition timing issues.? One solution is to get the voltage before the limiting resistor for the LED.? Then just buffer (if necessary) and low pass the

Awesome, glad to hear this. How are you finding wsjtx on the Quadra? I got it working before (though with a different radio) but to me it seemed it was barely able to keep up with the decodes and

Thanks, but now the PC no longer opens the Progrock programming page, probably because the pic has broken down and is therefore no longer usable. 73 iw2gg Enrico [email protected]> ha

Watch the update rate on the meter, as well as the ability to disable the auto range.? With a flashing/pulsing LED the auto ranging might get stuck trying to chase the varying signal. I have seen

Sorry to hear that it’s dead. No consolation, but it could be worse. I saw an ad a few weeks ago here in UK, for a week old Yaesu FTDX10 that the owner had given 55 Volts… Spares or repairs!

Thanks for the help everyone. It was a fun build so when budget loosens up a bit I'll give it another go. Maybe by then the QMS will be out. 73 all

She lives! It was plain, old, uncomplicated, simple RFI. Clipped two ferrite beads onto the coax, and another two onto the USB cable, et voila, JS8 and WSJT-X work just fine. Thank you to everyone who

Would Q204 be as sensitive to ESD? Being connected to an external jack (PTT) isn't it sort of hanging out there like an antenna? -- Tisha, AA4HA

Thinking about this some more, a Trinket M0 could monitor the voltage of the LED with a GPIO and output it while emulating a USB keyboard. I use trinkets as keyboards all the time. I have a rotary

Hi Brad. I'm by no means an expert in this, but If you're reading single digits of resistance across the 2 rails on the main board to ground with the smps boards removed, then yes, your QMX has

Or, presuming you are checking by VNC (?) click TX and be monitoring on a local RX.

Hi Nate.? One quick solution is to purchase a cheap USB enabled DVM with software.? Run the DVM software remotely to monitor the activity of the LED voltage.? Here's one

Nate, I do not know what you would do if a LED was not pulsing? But an easy way of checking operation is looking for spots on WSPRnet. I run WSP{R/FST4W on at least 3 RXTX QDXs and the situation you

Could you add a webcam to the remote PC, and point it at the devices, so you can view them remotely? You could also set up a Raspberry Pi and camera, and use that for viewing. -- Paul MW7PAJ

What if you remove the LED and resistor and drive an Arduino pin directly? -- Colin - K6JTH http://tangokeys.com

My QDX is generally "remote" in my attic at my main QTH, running off a laptop up there, 30 feet feet from where I'll sit and "operate." I like the QDX for remote digital work, because there's no audio

Hans, I was helping a friend who knocked off D103 from his SMPS (Rev2) PCB 2. I noticed that D103 is on the back of the board, while my Rev 1 has it on the front. While checking the pictures of the

Easy way is to check for short across the big yellow tantalum capacitor on each board. Test in both directions with a multimeter on a low ohms scale. It should read open in at least one direction.

good morning Michael, yesterday I replaced the 4 bs170s and the problem remained the same, the strange thing is that I made many QSOs in cw with 5/6W on the bands here in my area, then I tried to

Did you only apply power, or did you turn it on? If the former, you might be OK. If the latter, what happened? I wouldn't think just applying 26 volts would damage the supplies, if they were off...