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Re: QCX-mini confusion
Hey Julian, Thanks for the reply! No, I can¡¯t update the software myself I don¡¯t think. I¡¯ll look into it. Conard, WS4S
By Conard Murray · #74760 ·
Re: Low Tx out with high current?
OK, back on line.? open the box and did not find anything.? Measured the BS170 in-circuit and found these values for them on my old M3 Analyzer.? It gave both of the values indicated, which I don't
By Retired Doc · #74759 ·
Re: QDX R34 missing
Almost rolled off my chair laughing at the truth of that. Fortunately XYL is in the kitchen in a Zoom mtg, so I won't have to explain what I was laughing at. -- Julian, N4JO.
By Julian N4JO · #74758 ·
Re: QCX-mini confusion
Hi, Conard, Backlight control didn't enter the picture until v1.06. but if your unit boots up showing "v1.05" - irrespective of what's printed on the chip label, you don't have that capability. Yes,
By Julian N4JO · #74757 ·
Re: QDX USB Tree Reports Windows10 #qdx
There is a voltage maintained for quite a while, over 3 volts on the electrolytic, 2.5 volts in places on the board. I'm thinking it needs a resistor or two to drain this away.
By Alan G4ZFQ · #74756 ·
QCX-mini confusion
Hey gang, I just built a newly-arrived QCX-mini for 40. Aligned up perfectly on first powerup and all was well until I tried to turn the backlight on. Scrolling through the menu I can¡¯t find
By Conard Murray · #74755 ·
Re: QDX USB Tree Reports Windows10 #qdx
Andy, Is this what you are asking? The QDX fault condition here is that when the audio does not seem to be configured correctly. My last test first showed a bad audio trace, then the very high noise
By Alan G4ZFQ · #74754 ·
Re: QDX Isues with sWindows10 #qdx
Al The 24 bit 48KHz is reported to the OS, no alternative. 73 Alan G4ZFQ
By Alan G4ZFQ · #74753 ·
Re: Upgrade 1.06 to 1.07A
Pretty much what I figured. Thanks! 73 /paul W3FIS
By Paul Ross · #74752 ·
Watch out for multiple USB audio devices #linux #qdx
Hi all, I searched but couldn't find if this was already discussed, but it's another audio thing to keep in mind when using pulseaudio (the default on many Linux distro's). Today I was watching the
By Ben · #74751 ·
Re: QDX Isues with sWindows10 #qdx
Potential buyer here, When the embedded STM USB sound card is detected by Windows does it set 'correct' bit depth/sampling rate? I've been reading over the QDX Instruction manual's circuit
By Al Holt · #74750 ·
Re: QDX Isues with sWindows10 #qdx
Andy, The trials that I have done do not point to a USB audio issue.? There is something disturbing the QDX that causes it to go into a state where the opposite sideband is not being suppressed as
By Evan Hand · #74749 ·
Re: QDX Isues with sWindows10 #qdx
The next step would be to get some snapshots of what the OS thinks it has connected and probably to split it into 2 threads, 1 for Windows and 1 for Linux. Get the QDX working OK and then capture the
By Andy · #74748 ·
Re: QDX Isues with sWindows10 #qdx
Unfortunately disabling USB auto suspend did not solve it for me. After a while the RX audio level was zero, JS8Call was in TX mode but the QDX not. And the audio and RF filter sweep looked as below.
By Ben · #74747 ·
Low Tx out with high current?
Hi All, Everything was working fine, and then I switched firmware 1.01c.? When I loaded it up the QDX LED turned off.? I removed the power and then plug it in and the fast flashing occurred as usual
By Retired Doc · #74746 ·
Re: QDX Isues with sWindows10 #qdx
I have found that my issue was the different max audio out variation in my various windows machines (with out levels set at 100%).? On one laptop QDX works on 40M only and on an old windows tablet it
By N3MNT · #74745 ·
Re: QDX Isues with sWindows10 #qdx
Hi Andy, This is interesting! I remember getting a 4-bay USB DAS to enumerate only after disabling auto suspend. So I just disabled auto suspend (added kernel option usbcore.autosuspend=-1) and
By Ben · #74744 ·
Re: QDX Isues with sWindows10 #qdx
Guys, There seems to be lots of people with their guaranteed cures for USB issues all of which are ignoring the elephant in the room. USB is a hugely mature technology and if things are going wrong,
By Andy · #74743 ·
Re: QCX WARC Party - November 2021
Oh yes, I use a third tool if I know who I'm looking for http://www.reversebeacon.net/srch.php (you can do this also with the map version, but this one has a simpler interface) just type the callsign
By ON7DQ Luc · #74742 ·
Re: QCX WARC Party - November 2021
Hi Hans, we understand ... busy times for you. But of course we will be happy when you are back in the QCX parties ! Chris, best is to join the discord sked page (
By ON7DQ Luc · #74741 ·