Re: Firmware nightmare — gibberish (!) help needed
Thanks, Hans, I think they call those "AI hallucinations"!
Randy K7RAN
By
Randy K7RAN
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#142306
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Re: ProgRock2 programming??
Two comments here:
- Yes, the ProgRock2 (nor the original) have coupling capacitors on their outputs.? If you aren't sure if you need one, *add one!* Don't go overboard with the capacitance -
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cct314159@...
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#142305
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Re: Qmx plus rev 2 not powering up
Hi Ludwig
I have ordered the correct Mosfets should arrive tomorrow, I will measure the LIN_REG_EN and then solder the mosfets, just to confirm the LIN_REG_EN should be 12V when the button is pressed
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Azgael
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#142304
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Re: Low current BIAS SMPS
Or actually not! It looks as if the transistor had been in place and fallen off. When this did happen cannot be said. It even would have been possible to pass a function test.
I’m happy that it was
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Martin
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#142303
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Re: SSB audio distortion #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Hi Lun,
Thanks for the tip.
Sadly, it didn't work for me.
Mel, M0KMD.
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Mehmet Dinch
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#142302
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Re: ProgRock2 programming??
I didn't add one. How does it work without some DC going to pad 6 of the unit? It seems the unit would need the pad 6 to be connected to a voltage source.
Tom
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Tom Smith
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#142301
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Re: SWR and PWR does not show lcd
Same Issue with mine.? QMX Rev 4, firmware 1.00.027.? No PWR nor SWR showing up. f/w issue?
thx
JD
By
VA2OJD
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#142300
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Re: Debugging BS170-related issues
Yes. The stripe is on the pin 1 end of the device.
Tony
AD0VC
________________________________
Sent: Wednesday, April 2, 2025 8:17 AM
To: [email protected] <[email protected]>
Subject: Re: [QRPLabs]
By
mux_folder2001
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#142299
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Re: Low current BIAS SMPS
Reminds me that an automated comparison of board images taken after
assembly should be able to catch this sort of fault before it gets shipped
thousands of miles around the world. You can even see
By
Roger E Critchlow Jr
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#142298
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Re: QMX+ TCXO calibration using PPS
I don't believe this is actually implemented in code yet.
I wanted to do something similar a few days ago.
Julian, kf4mot
By
Julian kf4mot
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#142297
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Re: Debugging BS170-related issues
This is probably a stupid question with an obvious answer, but I don't want to screw it up....
Received replacement parts from Digikey. Removed old IC503 without incident (first time using
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Steve N2IC
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#142296
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Re: ProgRock2 programming??
Tom,
I think I'm right in saying there are no isolation capacitors on the Progrock's outputs.
I hope you added one.
Any voltage on the equipment's crystal socket could damage the 5351.
73 Alan
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Alan G4ZFQ
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#142295
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Re: ProgRock2 programming??
Hi Alan,
Well, I thought I had the ProgRock2 programmed for the 6.6khz frequency, installed it with the two pins of a HC6 crystal base with a backside ground terminal soldered to the holder base. I
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Tom Smith
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#142294
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Re: QMX + Backlight dimming
Hi All.? I have a similar goal-? screen is way too bright.? It does not seem to be the issue of pin 3 hitting the inductor on the power board.? So with r306, there are two solder pads on either
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VA2OJD
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#142293
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Re: Startup issue loading Firmware.
#firmware
#troubleshoot
#troubleshooting
#USB-C
I reached out to Jeff through the web interface for this group.
He found a few issues with my mid band QMX, a couple of shorts (one of which took out my smps and cpu) and a few other minor issues (we
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Jason
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#142292
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SWR and PWR does not show lcd
Hi,
I've just finished my QMX+ rev.3 (firmware 1_00_027).
Everything seems to be working correctly, except for the SWR and PWR does not show.
They don't appear on the LCD, even though I have them
By
ec7zv0@...
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#142291
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Re: Startup issue loading Firmware.
#firmware
#troubleshoot
#troubleshooting
#USB-C
Hi Bill,
Don't give up! You're almost there!
As has been mentioned: make sure you have a good cable. Some are charge-only. That could stymie you right there.
Make sure you're providing enough
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Todd W2TEF
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#142290
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Re: Startup issue loading Firmware.
#firmware
#troubleshoot
#troubleshooting
#USB-C
Bill...
Have you watched this video https://www.youtube.com/watch?v=Ku9QNkf0yjw&t=51s ?
It worked for me on my Mac mini.
Rich, AD0SN
By
rsmith
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#142289
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Re: QMX Display Brightness
Hi all.? Yeah, my new QMX build, screen is way too bright and no contrast adjustment space (pot is turned fully counter-clockwise).? there is no contact with pin 3 and powerboard below.
So, I will
By
VA2OJD
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#142288
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Re: Tone or birdie every 500 Hz in USB mode
Mel,
Yours sounds a lot worse than mine does! You can definitely hear a solid tone, though, with or without the GPS. With the GPS there is the on-off code like tone under the other solid tone. My QMX
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Daniel Conklin
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#142286
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