Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Hi Roy
> Something to do with reducing > the value of Sample blocks > appears to make QMX grumpy.
Thanks... I'll fix that. No problem. It's just that pesky AGC sample buffer again... It's in use all the time audio is running. When you go in and change the size while it's in use things can get confused. You'll find probably it crashes sometimes not others, when you change sample size. I can fix it easily don't worry. For now, restarting QMX will recover it.
73 Hans G0UPL
Hans, FYI:
I just tried to set Paul's "good start" settings (post below), not through Terminal, but through the QMX menu. After finishing, selecting the right push-button to step out, my QMX locked-up with just "Audio" showing. No buttons worked including power off, so had to power off by pulling the plug.
On re-start (plugging back into power and starting), QMX came up just normally, and all settings I made were still present.
I was able to reproduce the issue (again, Menu settings via QMX, not terminal) by trying a few things. This is what did it in:
- moving "Sample blocks" back up to 5 (your originally published settings to try)
- backing all the way out of menu. (QMX working OK here)
- returning to Menu -> Audio -> AGC Settings -> Sample blocks
- reducing the Sample blocks to "2".
- back -> back (to AGC Settings) -> back (to Audio)
- QMX totally hung now
Something to do with reducing the value of Sample blocks appears to make QMX grumpy.
Roy - KI0ER
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Very pleased with the new features.? The QMX is growing up now. Well done Hans! One thing for my wish list would be a variabel filter setting for CW. I'm working a lot of guys using homebrewed tx or ww-2 gear. They are not spot on most of the time and VFO' s tend to drift. This morning I had a QSO? with a om who returned to my cq about 150 Hz lf and I first did'nt hear him. Now I'm using RIT and tune around my calling frequency after a cq.
73 Durk PA3BYW?
Hans,
Thanks so much for this, a great improvement on CW!? Paul, thanks for thes ettungs, I've been playing around with them a bit with QSOs on 30M and litening to the 'test on 40M.? Think I'll end up somewheer between youe settings and Hans LOL.? Owning an Elecraft K3 and K4 means I've done a lot of playing around with AGC settings!
73, Bill NZ0T
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Re: WSPR Receive Frequency on QCX Mini With TCXO
Hi Bruce,?
I'm getting nothing on 14.0971. However,? as per Peter's suggestion,? 14.0964 provided a few hits late yesterday evening.? Hopefully, there'll be more today when the band wakes up.?
Karl?
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Re: WSPR Receive Frequency on QCX Mini With TCXO
Thanks, Peter?
This generated a small number of hits late last night.? I will try again later this morning when the 20M band is more lively.?
Karl?
Sent from
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March QST has two articles praising the QCX & QMX for portable ops!?
--
73, Dan? NM3A
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Hans,
Thanks so much for this, a great improvement on CW!? Paul, thanks for thes ettungs, I've been playing around with them a bit with QSOs on 30M and litening to the 'test on 40M.? Think I'll end up somewheer between youe settings and Hans LOL.? Owning an Elecraft K3 and K4 means I've done a lot of playing around with AGC settings!
73, Bill NZ0T
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
The DX contest is proving to be a great way to test the AGC.
And it is working quite nicely.? Thanks, Hans!
Just hopped on 20m and snagged two Spanish stations and a Hawaiian station.
Amazing what 4W and a 15ft dipole can do when the band is open.
73, Mike KK7ER
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Hans, FYI: I just tried to set Paul's "good start" settings (post below), not through Terminal, but through the QMX menu. After finishing, selecting the right push-button to step out, my QMX locked-up with just "Audio" showing. No buttons worked including power off, so had to power off by pulling the plug. On re-start (plugging back into power and starting), QMX came up just normally, and all settings I made were still present. I was able to reproduce the issue (again, Menu settings via QMX, not terminal) by trying a few things. This is what did it in:
- moving "Sample blocks" back up to 5 (your originally published settings to try)
- backing all the way out of menu. (QMX working OK here)
- returning to Menu -> Audio -> AGC Settings -> Sample blocks
- reducing the Sample blocks to "2".
- back -> back (to AGC Settings) -> back (to Audio)
- QMX totally hung now
Something to do with reducing the value of Sample blocks appears to make QMX grumpy. Roy - KI0ER
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
On Fri, Feb 16, 2024 at 02:04 PM, <nz0tham@...> wrote:
I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
73, Bill NZ0T
See below.? The high "Smooth Samples" setting seems to eliminate much of the audio clicks.? The remaining settings give reasonably good dynamic range while limiting strong signals. I'm still experimenting with values but this is a good start. Paul, W9AC ?
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Re: An interesting diagnosis
All I can say it’s a good thing I had lifted the leg of pin 32 of the cpu that was NG before I removed it. ?That saved me. ?
Jeff
W1NC
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
I loaded .17 and it is working well on digi with iFTx on the iphone. ?Thanks to Hans ill be trying it out on the next SOTA outing.?
On Friday, February 16, 2024, 3:30 PM, Hans Summers <hans.summers@...> wrote: P.P.S. yeah there's a lot of clutter in there. Like my workbench (see attached)... the QMX "Lab" is almost as cluttered as the real one.? On Sat, Feb 17, 2024 at 1:27?AM Hans Summers via <hans.summers= [email protected]> wrote: P.S. Attached... "The Lab" Easter egg...?
On Sat, Feb 17, 2024 at 1:25?AM Hans Summers via <hans.summers= [email protected]> wrote: I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
Adrain?YO3GFH said:
"I configured AGC with the values seen in your screen captures, they seem pretty sane, I only changed "Recovery dB/s" (from 10 to 15) and "Threshold S" (from 8 to 7)."?
I think that is reasonable...?
I remind all that: - I was being a little extreme perhaps in my settings, because I wanted to see what goes on, during my development and testing
- I had long hang time and slow recovery dB/second because again, I wanted to see what was going on, and be able to demonstrate in the video?
- My video test case was also extreme... S9+30dB... to demonstrate the extreme capability of the AGC system to totally delete any possibility of that massive signal reaching the earphones, in this case it instantly applied about 36dB attenuation, and no blip at all is seen on the Audacity software's recording of the audio (which is also streamed over the USB sound card interface concurrently to the audio output). And also to clearly show everything for the video.?
- My 40m noise floor is too high here right now, as I said on the video, my antenna fell down. It doesn't work as well lying on the roof which has a metal frame inside the tiles.?
Easter egg: If you press the D key on the terminal screen, in the main menu, you get my secret "lab", it's my playground which I use during development of my various functional additions, and for debugging, etc. What's in there now is some debug info on the AGC as that's the task I had most recently on the lab bench. Might be interesting, if you are wanting to play with the AGC.?
--
Jginaz
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Re: WSPR Receive Frequency on QCX Mini With TCXO
Tune the dial ?to the centre of the WSPR band 097100
Tones will vary between ?600 and 800 but you should have a full passband to pass to the PC
Any Hum etc on the audio connection ?ruins the chances of decoding anything but you should still see a few carriers in a waterfall?
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Re: OCX+ T1 Toroid Continuity Process
Bill, you should also check for continuity from point 5 to point 8n to make sure they are connected perly via the circuit board at points 6 and 7. Should be OK to proceed. good luck ... Ron
Greetings and thank you for indulging a rookie question. I'm new to complex kits.
I have wound, then soldered T1 onto the board, and have continuity in each of these points:? 1 to 2, 3 to 4, 5 to 6 and 7 to 8.
Does this mean I successfully installed T1 and can proceed with construction?? I just want to know the precise continuity steps.
- Bill
W3WJ
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
P.P.S. yeah there's a lot of clutter in there. Like my workbench (see attached)... the QMX "Lab" is almost as cluttered as the real one.?
On Sat, Feb 17, 2024 at 1:27?AM Hans Summers via <hans.summers= [email protected]> wrote: P.S. Attached... "The Lab" Easter egg...?
On Sat, Feb 17, 2024 at 1:25?AM Hans Summers via <hans.summers= [email protected]> wrote: I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
Adrain?YO3GFH said:
"I configured AGC with the values seen in your screen captures, they seem pretty sane, I only changed "Recovery dB/s" (from 10 to 15) and "Threshold S" (from 8 to 7)."?
I think that is reasonable...?
I remind all that: - I was being a little extreme perhaps in my settings, because I wanted to see what goes on, during my development and testing
- I had long hang time and slow recovery dB/second because again, I wanted to see what was going on, and be able to demonstrate in the video?
- My video test case was also extreme... S9+30dB... to demonstrate the extreme capability of the AGC system to totally delete any possibility of that massive signal reaching the earphones, in this case it instantly applied about 36dB attenuation, and no blip at all is seen on the Audacity software's recording of the audio (which is also streamed over the USB sound card interface concurrently to the audio output). And also to clearly show everything for the video.?
- My 40m noise floor is too high here right now, as I said on the video, my antenna fell down. It doesn't work as well lying on the roof which has a metal frame inside the tiles.?
Easter egg: If you press the D key on the terminal screen, in the main menu, you get my secret "lab", it's my playground which I use during development of my various functional additions, and for debugging, etc. What's in there now is some debug info on the AGC as that's the task I had most recently on the lab bench. Might be interesting, if you are wanting to play with the AGC.?
|
Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
P.S. Attached... "The Lab" Easter egg...?
On Sat, Feb 17, 2024 at 1:25?AM Hans Summers via <hans.summers= [email protected]> wrote: I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
Adrain?YO3GFH said:
"I configured AGC with the values seen in your screen captures, they seem pretty sane, I only changed "Recovery dB/s" (from 10 to 15) and "Threshold S" (from 8 to 7)."?
I think that is reasonable...?
I remind all that: - I was being a little extreme perhaps in my settings, because I wanted to see what goes on, during my development and testing
- I had long hang time and slow recovery dB/second because again, I wanted to see what was going on, and be able to demonstrate in the video?
- My video test case was also extreme... S9+30dB... to demonstrate the extreme capability of the AGC system to totally delete any possibility of that massive signal reaching the earphones, in this case it instantly applied about 36dB attenuation, and no blip at all is seen on the Audacity software's recording of the audio (which is also streamed over the USB sound card interface concurrently to the audio output). And also to clearly show everything for the video.?
- My 40m noise floor is too high here right now, as I said on the video, my antenna fell down. It doesn't work as well lying on the roof which has a metal frame inside the tiles.?
Easter egg: If you press the D key on the terminal screen, in the main menu, you get my secret "lab", it's my playground which I use during development of my various functional additions, and for debugging, etc. What's in there now is some debug info on the AGC as that's the task I had most recently on the lab bench. Might be interesting, if you are wanting to play with the AGC.?
|
Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
Adrain?YO3GFH said:
"I configured AGC with the values seen in your screen captures, they seem pretty sane, I only changed "Recovery dB/s" (from 10 to 15) and "Threshold S" (from 8 to 7)."?
I think that is reasonable...?
I remind all that: - I was being a little extreme perhaps in my settings, because I wanted to see what goes on, during my development and testing
- I had long hang time and slow recovery dB/second because again, I wanted to see what was going on, and be able to demonstrate in the video?
- My video test case was also extreme... S9+30dB... to demonstrate the extreme capability of the AGC system to totally delete any possibility of that massive signal reaching the earphones, in this case it instantly applied about 36dB attenuation, and no blip at all is seen on the Audacity software's recording of the audio (which is also streamed over the USB sound card interface concurrently to the audio output). And also to clearly show everything for the video.?
- My 40m noise floor is too high here right now, as I said on the video, my antenna fell down. It doesn't work as well lying on the roof which has a metal frame inside the tiles.?
Easter egg: If you press the D key on the terminal screen, in the main menu, you get my secret "lab", it's my playground which I use during development of my various functional additions, and for debugging, etc. What's in there now is some debug info on the AGC as that's the task I had most recently on the lab bench. Might be interesting, if you are wanting to play with the AGC.?
|
Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Bill,
I simply used the values from Hans’ video on YouTube.
I put out a CQ on 40m after the upgrade to 1_00_017 and worked Ralph DL1HR who was also using a QMX.
The AGC certainly makes 40m more pleasant to listen to. Thanks, Hans.
73
John
G4YTJ
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Re: An interesting diagnosis
Oh, and that is not limited to ham-parts. Yesterday I replaced a stereo receiver for my XYL and her karaoke stuff. Instead of doing it step by step and doing one speaker at a time, I pulled all eight speaker wires out of the old receiver, keeping them neatly in a line on the floor so I wouldn’t mix them up, as they go through walls and under the carpeting. Not a good plan - as I was reaching for my flashlight the sleeve of my shirt got snagged on one of the leads and in a microsecond all eight pairs got jumbled. Off to the garage for my DVM to start tracing. Time for a glass of wine…
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On Feb 16, 2024, at 3:06?PM, Hans Summers <hans.summers@...> wrote:
Hello Jeff? Success!? After a one hour operation, the patient lives.? I was able to remove the bad cpu, remove the good cpu from a donor board, being careful to not mix them up!!!!
Ha! You had me chuckling... "being careful to not mix them up"... I admit, I can't count how many times I managed to remove a miniscule SMD component, sat back and?admired in quiet celebration my for success in not ruining?the PCB; then managed to remove the corresponding SMD component from a donor board (nearly all my partial reels of fresh SMD parts for manufacturing being warehoused far across the world), similarly admiring my accomplishment in getting the functional part off the donor board. Taking a deep breath, before starting the job of installing the donor part onto the board-under-repair. Only to swear. Oh #$@#... so after all that, which was the dead part, and which is the working one...?
Hhahaha I thought that was only me. But when I read your sentence, I felt I may not be so alone in the universe...? ?
--
Jim / K7TXA
Eagle, ID
SKCC 10447T
BUG 301
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Re: An interesting diagnosis
Hello Jeff? Success!? After a one hour operation, the patient lives.? I was able to remove the bad cpu, remove the good cpu from a donor board, being careful to not mix them up!!!!
Ha! You had me chuckling... "being careful to not mix them up"... I admit, I can't count how many times I managed to remove a miniscule SMD component, sat back and?admired in quiet celebration my for success in not ruining?the PCB; then managed to remove the corresponding SMD component from a donor board (nearly all my partial reels of fresh SMD parts for manufacturing being warehoused far across the world), similarly admiring my accomplishment in getting the functional part off the donor board. Taking a deep breath, before starting the job of installing the donor part onto the board-under-repair. Only to swear. Oh #$@#... so after all that, which was the dead part, and which is the working one...?
Hhahaha I thought that was only me. But when I read your sentence, I felt I may not be so alone in the universe...? ?
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
I got 17 loaded just fine.? Anyone have suggested AGC settings to start with?
73, Bill NZ0T
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Paul Christensen
Bruce Akhurst
Ronald Taylor