开云体育

John, I expect these settings satisfy 95% of Windows users. Radio Hams need to turn off all audio "enhancements" when they start using a Windows computer. 73 Alan G4ZFQ

Late posting this, but want to complete the story. Turned out my transmit issues were due to some "automatic" attenuation that defaults on Windows 10 and 11. Here is Paul Jorgenson's excellent post

Well... I just finished my second QMX, the first one was toasted by increasing the supply voltage from 6V to 12V wiith a ramp-up time of 3milliseconds. The full story is here:

Chris, But if the wires are in the wrong holes reception could be zero. 73 Alan G4ZFQ

Maybe a better description. What version QDX? L4?? are you sure? Terminal shows only 80m, do a reset? WSJT works? RX and TX? All bands? USB sketchy? How? D1, 4 shorted? Seems unlikely. 73 Alan

James Q6 failure has been reported, possibly static from antenna. Or, a bad joint showing up. 73 Alan G4ZFQ

I downloaded the new driver and virtual port installer yesterday. I tried it on my laptop (Win10) and desktop (Win11) and all worked as expected, but haven't connected a radio yet. The cables I have

The voltage on LIN_REG_EN is a little over 0.7 volts when the power on switch is pressed, which leaves me a bit suspicious... Still don't understand what could've compromised the CPU.

Well, I thought I had an easy glide path. Repairing the Q103/Q104 short, I damaged (lost) R104 and D102. Turns out what I was seeing was, with no pull up, once connected to the supply the 12 volt

It seems to be ok so far, firmware loaded and the display is working.

Thanks Jeffrey, I found a solder whisker bridge from the plug in PCB#1 edge connector to the FET.? It turns on with the switch now, I hope there isn't any damage to the CPU.

*IT's ALIVE!!!* The QMX hears and transmits as well! (Ironically the 1st thing it heard was from the QRP-Labs SigGen!) On transmit without any adjustments at ~12VDC? into my QRPoMeter dummy load I

I have the same question Hans. Is it possible for invoice 72091 to be made for 9V?

Rick, was not an issue with the inductor/ pin 3, just brighter than I wanted. -- 73, Dan? NM3A

I'm just adding the #QMX hashtag, which I'd inadvertently left off. ?Thank you again in advance for any troubleshooting advice regarding the ~10ohm resistance detected across some of the A and B test

Just put in a 120 ohm (leaded) in place of the 33 ohm. Much softer and it's fine, but could have even gone to 150 or 180. Thanks for the info. BTW, I did not remove the 33 ohm, I just cut the one

Update: Definitely a toasted zener on the 3.3V PSU board. Hooked up 3.3 board to bench supply. High current draw, zener gets hot. Removed zener. Current draw now reasonable. Installed 3.3 board into

Please post pix, Sandy. 73 Jim K1IR

First fire up on QDX 20-10. Led flashes normally. L4 started smoking. Yikes! Now terminal shows only 80m, no other bands. Wsjt works into 50 ohms but usb sketchy Replaced L4. Removed Diodes D1

4 watts vs 3 watts is 1.25 db. IMO there are bigger fish to fry. I intend to run off a car battery inverter so I took some extra steps to ensure thermal performance at 13.8 vs. 12. I put thermal