Re: Available Hand Mics for QMX SSB ?
I've just been printing them one at a time. It takes 45 minutes to print a set, whether you print an array or one at a time, and this way is less prone to errors in my experience. I did set up an array of 10 on the bed last night when I went to bed because I wouldn't be here to watch it all night, but something went wrong in the middle of the night and I wound up cleaning a glob of plastic off my print head, replacing the nozzle and re-levelling my bed this morning before I could print again.. It's working to print them one at a time.
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
This update hang issue is kind of all over the place.
I had run into it upgrading to .002 but didn't fully characterize it because the resolution was fairly easy.
I have 2 QMX and 2 QMX+. (Sorry, I can't help myself....)
QMX 1 - Upgrade from .002. Displayed the symptoms below and also didn't enable the USB drive until I pressed the power button after I put it into update mode. The USB drive remains active and shows both the old and new firmware files after the file transfer. Unplug power, plug back in, turn it back on and the upgrade succeeded.
QMX+ - 1 Same as above.
QMX 2 - Upgrade from .002. Worked as expected. It turned on the USB drive, then off after file transfer, and rebooted on it's own after the transfer.
QMX+ 2 - Upgrade from .001. Worked as expected. It turned on the USB drive, then off after file transfer, and rebooted on it's own after the transfer.
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Randy, N4OPI
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Hi Nate,
Got any pix of the improved heatsink on the QDX? I've burned out 2 or 3 QDX rigs.
?
Tnx
Jim W7LS
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
hi, did the update on my qmx 80-20 tonight without any trouble...
calibration takes around 30 minutes, but cannot test SSB yet, have ordered a mic , so in a few days I can test "the ride" ?
?
vy 73 and many thanks to Hans and his great team?
?
ps: today I will upgrade my qmx 20-10 too and next week my qmx+ will arrive, waiting for directly updating ?
?
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Me too, but it has happened now and then over the past years of updates. Hard power down and back, then restart with the power button always works for me. Loving the new firmware! Thanks for your hard work and determination Hans Dave VE7AHT
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Mine is doing this as well.?
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73, Dan - W2DLC
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
That update 'hanging' happened with the prior two releases on a couple of my units.
I don't believe it is related to the new firmware; it is something that has always been there; just happens sometimes.? And sometimes when you put it in firmware update mode from the menu, it doesn't auto restart and bring up the drive - you have to press the power button to make it start up.
Stan KC7XE
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
On Fri, Mar 21, 2025 at 07:00 PM, <adam@...> wrote:
When loading 003, it hung for about 5-8min before the drive disconnected, and then it did not reboot. I had to pull power in order to get it to power back on.
?
I had the same experience as Adam although I didn't wait for mine to disconnect, I just pulled power after the QMX hung.
?
Power cycled and booted up fine. Then I went back into firmware update to confirm the 003 version was loaded and it was there. Just to be sure, I tried to load 003 again and it hung like before.
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Re: QMX high band no receive
Contact Jeff Moore W1NC. He has repaired many QMX and QMX + rigs. You will see many positive posts regarding his work.?
On Fri, Mar 21, 2025 at 9:35?PM Ryan Neary via <ryanmichaelneary= [email protected]> wrote: Hello,
Anyone out there do repairs on a QMX? I don't have the technical skills to do the work myself.
Radio was functioning as normal until I attempted the SSB beta firmware. After that, the digi receive was lower, and power output dropped from 5 watts to 1.5.
Turned the radio on today, saw signals on the FT8 waterfall for about a minute and then silence. Tried to listen to CW signals but nothing there. Tried other bands also.
Can anyone help?
Thanks,
Ryan KK5NM
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Typically when I move new firmware over, after the file finishes copying, the drive disconnects, and the device reboots.? When loading 003, it hung for about 5-8min before the drive disconnected, and then it did not reboot. I had to pull power in order to get it to power back on.? Not sure this is a "bug" or circumstance related to my system and my setup.
?
?
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Loopback devices and Headsets on Linux
#qmx
#ssb
Still waiting for some parts to come in from digikey.? In the meantime, I have been making contacts across the bands with some earbuds that have an integrated mic plugged into my compute.? the QMX SSB is setup for audio over USB, and using Ubuntu 24.04, I have setup two loopback devices.?? One that takes the mic from my earbuds and feeds it to the QMX over usb, and another that takes the Rx audio from the the QMX and feeds it to the speakers of my ears buds.?? I have used VOX, but prefer to leave my CW paddle hooked up and use the left paddle to trigger PTT.?? This is specific to my setup, but it should help you to get an idea for your own system:
?
Earbud Mic to QMX:
pactl load-module module-loopback source=alsa_input.pci-0000_00_1f.3.analog-stereo sink=alsa_output.usb-QRP_Labs_QMX_Transceiver-02.analog-stereo
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QMX to earbuds:
pactl load-module module-loopback source=alsa_input.usb-QRP_Labs_QMX_Transceiver-02.analog-stereo.5 sink=alsa_output.pci-0000_00_1f.3.analog-stereo
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Commands to help list the sources and the sinks:
pactl list short sources
pactl list short sinks
?
?
How to unload the loopbacks when you are done:
pactl unload-module module-loopback
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Hello,
Anyone out there do repairs on a QMX? I don't have the technical skills to do the work myself.
Radio was functioning as normal until I attempted the SSB beta firmware. After that, the digi receive was lower, and power output dropped from 5 watts to 1.5.
Turned the radio on today, saw signals on the FT8 waterfall for about a minute and then silence. Tried to listen to CW signals but nothing there. Tried other bands also.
Can anyone help?
Thanks,
Ryan KK5NM
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Re: #qmx #SSB Firmware beta 1_01_002 release
#qmx
#ssb
Odd, I see something similar via my Hermes Lite 2.?
?
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Re: Available Hand Mics for QMX SSB ?
On Fri, Mar 21, 2025 at 03:08 PM, Erik Larson wrote:
My workbench this weekend, assembling them as fast as the printer can print them:
As FDM parts, I assume you're printing an array of multiples on your buildplate, Erik. They are not very tall so, depending your your printer architecture, you might even be able to print a tightly spaced array in "one part at a time" mode, instead of printing each model "one layer at a time."? One part at a time usually works the best, if it's possible, because the deposition stays warmer between each layer and the print head jumps are short. Also, if the machine crashes or a print fails, at least you can use the parts that have been completed. On the other hand, the solutions that realize multiple colors complicate things.
?
Cal AD8Q
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I need display and its mounting board for qmx. ?Is this offered as spare parts. ? I see it for qcx. ?I have the mid version of qmx.
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KJ5IVB ….Bill
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
With this release - still external microphone must used - right?
?
--
73,
Sardar (AC8L, 4K6SA, VA3DUA).
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Re: Available Hand Mics for QMX SSB ?
On Fri, Mar 21, 2025 at 04:20 PM, K6AEF wrote:
How about an old lineman test key with a built in mic?
That's the most clever I have seen yet! Thanks for sharing!
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Re: Available Hand Mics for QMX SSB ?
How about an old lineman test key with a built in mic? Quick switch from CW to SSB just by changing the mode and holding the key up like a mic!  
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Re: #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Just tried this and was able to run calibration from the front panel with USB disconnected. Interesting results.
My QMX+ has TN0110 finals so I was expecting possible issues with calibration. When I first ran cal from Putty, three or 4 of the upper bands plotted as mostly flat lines at the top line of the graph. Most of those bands also exhibit the "
Continuous weak tones at 1KHz/1.5KHz/2Khz so I thought maybe those were affecting the calibration. Some of the tones go away when the USB cable is unplugged so I unplugged it and ran front panel calibration. I thought I was on to something because I could see
full curves being plotted on the LCD for all of the bands. But when I went back to putty and looked at the curves that way, they were still flat lines at the top of the graph. So, there is a difference in plot scaling between the LCD and Putty.
I need to dig some more but it seems like running without the USB cable does make a small effect on some bands. I should have saved captures of the first calibration plots. I will have to save all of these and rerun with the USB cable attached to be sure.
Tony
AD0VC
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Hi all
I updated the SSB beta testing webpage of the brave, here:??and released firmware version 1_01_003
to it. These are the changes:
- Bug fix: Initial value for noise gate samples was 100 (should be max 99) - makes no real difference but it needed to be fixed
- Added TX indication underlining the A character when transmitting from USB sound card in SSB mode. Note that the two possible states for this indication are a single dot (indicating PTT has been applied and now the radio is in TX mode) and the solid bar
(indicating audio is being received from the PC and transmitted). There is no double-dot like there is in Digi mode indicating insufficient volume, because in SSB mode the radio transmits whatever you give it, even if the volume is low.?
- Bug fix: CAT command TQ1; did not cause transmit when in SSB mode. Now TQ1; and TQ0; work properly in SSB mode.?
- Bug fix: Prevent button presses from accidentally activating VOX, which was happening due to sound picked up from the internal (cancellation reference channel) microphone when you pressed buttons right next to it, and that prevented band change because
the second click of the double click was ignored because by then the radio was in transmit mode. All fixed! Now you can click buttons however you like and when button clicks are done, VOX is temporarily disabled until your button pushing frenzy is over.?
- Power meter now reads Peak Envelope Power (PEP) when in SSB mode. Previously it was just reading a sampled value (NOT an average); so if the power meter was updated 10x a second, the updates would just randomly pick a value from the SSB amplitude?envelope,
which was most unlikely to be its peak value.?
- Bug fixL Calibration hung at DAC 1300 when run on LCD. Now the calibration completes properly when run from the LCD.
Many thanks for all the feedback so far, SSB in QMX is getting better and better!
73 Hans G0UPL
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Udo Die?elberg DF4BJ
Daniel Conklin
K6AEF