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Restart of the device seems to "cure" it, but it's not really a typical way to deal with a hot-pluggable device. Whatever happens at startup should happen on hot plug, I suspect. This all pre-supposes

It can (for some) be difficult to count the flashes as well.? I have struggled with this depending on lighting conditions and radio positioning.? Three flashes fools me into believing it's two

Brad, Have you looked? The flashes are continuous, 3 fast - miss one or two flashes - 3 fast. Same with 2 flashes. On continuously.. I'm not sure that colours would help, apart from being pretty:-) 73

I found this to be a constant problem until I bought a high quality usb cable and added ferrite chokes.

Hans, In my opinion the blinking mono color LED requires observation at the exact time of activity to count blinks, where a multicolor LED would not require such attention. A casual glance would alert

Thanks, Al. I don't think that's the problem. Other aspects of the QDX seem to be working well. I can use telnet and do other things. ...doug K6DRK

Well, I sort of figured it out. I can go through the firmware update process. At least, I *think* it's updating. After that, it seems to be operating normally. But whenever I power it up, it goes into

Still having problems. Let's see if I can document things properly. QDX version 4. Firmware 1.05. Mac OS Monterey 12.6. Here's a screenshot of flrig: I can hear audio from the device "QDX

Hello Brad Doesn't the existing LED already indicate Power on, TX and insufficient audio drive? 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl

I'm investigating a shack in the box based on a 4SQRP Bayou Jumper plus Hans's 50 W amp. The BJ has a manual TR switch- should I attach the PTT line there? Or is it bad to leave the PTT line high even

Good afternoon all.? I was talking with another fellow about the lack of indications with the QDX and that got us thinking about the possibility of using a multi-color LED instead of the current

Everything went fine. 40m is putting out about 45w and 20m is a little low at about 30w both at 20v. Bias doesn't change with band. Make successful tests on JS8 and packet tonight. Joshua

Doug, That is the newest. I'm using it as well. Just had a thought, Monterey is likely more picky with things than Mojave. Check in the Mac System Prefs in Security & Privacy to be sure something

This is it: /g/QRPLabs/message/87051 - Bruce K1FFX

Cliff, I'm using flrig 1.4.7.46. If there's a newer version, I couldn't find it. ...doug K6DRK

Hans, Is there an updated schematic and parts list available? Dennis KK5DB

Is the output of IC1 at the correct 3.3v? Milt w8nue

Sounds like the CPU memory isn’t surviving a power cycle, probably not something Hans tests for, as it should be pretty unlikely. I think this is the second one I’ve heard of on this list. Hans

Definitely low. Something basic is not right. I would send a support request to Hans via the website. 73, Cliff, AE5ZA

This seems low; the three I have, all 9V, idle around 140mA. --Al WD4AH