开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. QRPLabs
  2. Topics

#QMX #firmware 1_00_007 #qmx #firmware

 

Hans,

I just finished my QMX build, and all is OK after replacing a cracked C526, either by too much heat or careless wire cutters.? But all is good after replacement.?

I guess lack of AGC means I'll have to be careful when using earbuds to listen to the QMX.? I was listening today to a weak signal so I had the volume turned up.? All of a sudden a VERY STRONG station responded, and I was scrambling to pull the earbuds and reduce the volume. I'll use an external speaker until AGC is added to the firmware.

Thanks for all you do,

Walt - KK4DF
 

I believe the AGC in the QMX is going to be totally in firmware. No
circuit changes incorporated from the QCX as it's not necessary. The
QMX is truly SDR.

-mike/w1mt

On Wed, Aug 16, 2023 at 8:31?AM <rentwist@...> wrote:

Hi Hans and Group,

So my question was if QMX has the circuit changes that were developed for AGC on the QCX. I see a post from Hans in this thread that "there is no AGC yet", I think this means that: 1. Yes, AGC circuitry is present and 2. Firmware does not yet support AGC. Do I have this correct?

Thanks and 73,

Robert, WA2T
 

Hi Hans and Group,

So my question was if QMX has the circuit changes that were developed for AGC on the QCX.? I see a post from Hans in this thread that "there is no AGC yet",? I think this means that: 1. Yes, AGC circuitry is present and 2. Firmware does not yet support AGC.? Do I have this correct?

Thanks and 73,

Robert, WA2T
 

Still not sure Hans has accounted for this situation yet... It's still
very much alpha firmware - but getting better with every new drop...

-mike/w1mt

On Mon, Aug 7, 2023 at 1:55?PM Anthony Walley ZS6ARW
<anthonywalleysa@...> wrote:

Mike I am not using cross band, I am swopping between VFO A and VFO B
 

Mike I am not using cross band, I am swopping between VFO A and VFO B
 

I'm gonna go out on a limb here and suggest that cross band is
probably not supported. (Yet?)

-mike/w1mt

On Mon, Aug 7, 2023 at 12:51?PM Anthony Walley ZS6ARW
<anthonywalleysa@...> wrote:

Regarding this tone issue I mentioned - I managed to play around a little more with the QMX today, and after uploading FW 1_00_009 I did a factory reset just in case, and tried to replicate the scenario I had experienced as reported a few days back :

"I have had an experience twice now swopping between A&B VFO's and sending CW on 20m there is a continuous low tone that appears after sending the first character...."
The issue is still present, but now I have some examples of when it appears:

1) when 40m is selected on VFO A, and 20m on VFO B when I send on 20m I get the low tone appearing after the first character, and persisting until I change band. Changing frequency does not remove the tone. When I select from the presets and add 20m into VFO A and 40m into VFO B this does not occur.
2) when 60m is selected on VFO B and 20m on VFO A when I send on 60m I get the low tone appearing after the first character, and persisting until I change band. When I reverse the selection ie. 60m into VFOA it does not occur.
3) when 30m is on VFO B and 60m on VFO A when I send on 30m its as if the RF gain is turned down and the background noise is lower. When I change band it is back to normal until I send on 30m again. When I reverse the selection this does not occur.

With 60m in either VFO and 40m as the counterpart, this does not occur.
Whenever I use a single frequency none of the tones or gain issues present themselves.
I have tried this with multiple different power supplies and with two different antennas.

Can anyone else replicate this? If not then its an issue with my radio only
 

Regarding this tone issue I mentioned - ?I managed to play around a little more with the QMX today, and after uploading FW 1_00_009 I did a factory reset just in case, and tried to replicate the scenario I had experienced as reported a few days back?: ?

"I have had an experience twice now swopping between A&B VFO's and sending CW on 20m there is a continuous low tone that appears after sending the first character...."?
The issue is still present, but now I have some examples of when it appears:

1) when 40m is selected on VFO A, and 20m on VFO B when I send on 20m I get the low tone appearing after the first character, and persisting until I change band. Changing frequency does not remove the tone. When I select from the presets and add 20m into VFO A and 40m into VFO B this does not occur.
2) when 60m is selected on VFO B and 20m on VFO A when I send on 60m I get the low tone appearing after the first character, and persisting until I change band. When I reverse the selection ie. 60m into VFOA it does not occur.
3) when 30m is on VFO B and 60m on VFO A when I send on 30m its as if the RF gain is turned down and the background noise is lower. When I change band it is back to normal until I send on 30m again. When I reverse the selection this does not occur.

With 60m in either VFO and 40m as the counterpart, this does not occur.?
Whenever I use a single frequency none of the tones or gain issues present themselves.?
I have tried this with multiple different power supplies and with two different antennas.?

Can anyone else replicate this? If not then its an issue with my radio only
 

Hi Chris
?
I notice that Diagnostics Transmit (T) only works in CW mode.

I just tried this, in my 1_00_008, and it seems that Transmit works in both?CW and Digi modes. So this report of yours is a mystery...?
?
73 Hans G0UPL
 

Hi Sandy

I fixed the problem with the message not sending, in 1_00_008.?

Actually the problem was, that it was doing a partial check of the parameters it was going to need if operating as a CW beacon - in this case, the beacon frequency. Then not using it, and NOT reporting an error?(because you weren't operating a CW beacon); so the CW messages storing would work normally, as long as you had the beacon frequency in the beacon menu set to any frequency in the band of operation. Me, I had it set up this way because I was testing the beacon function too; so of course I did not trigger the condition where the false-error is detected and un-reported... anyway it's all fixed now in 1_00_008.?

73 Hans G0UPL



On Wed, Aug 2, 2023 at 2:39?PM Sandy <mac3iii@...> wrote:
Bravo on the hard work and many improvements on 1_00_007. Indeed the ability to edit the messages at the rig screen is most welcome for us POTA (Parks On The Air) activators. I have noticed a regression however in the message behavior. It does edit fine but the actual send capability seems to have been lost. in 1_00_006 I would do a long press on the tune knob to select the message and then a short press to begin broadcast. In 1_00_007 the short press does silence the rig and has the M indicator but no transmission occurs.?

Let me add that I have used the QMX with 1_00_006 to activate several parks and this radio is the Holy Grail for park activators. It is small, multiband, and easily programmable in the field plus it doesn't use much battery power. Given the rapid rise in POTA popularity, especially in the USA I can foresee this rig becoming immensely popular. 73 Sandy KB3EOF

 

Hi Dafydd
?
Minor cosmetic issue:

Now that the keyer swap has been swapped to the default convention of "dits on the tip" (of the tip-ring-sleeve connector), perhaps it makes sense to update the corresponding legends in the hardware diagnostics screen too (to avoid confusion)?

Thanks, I have fixed that in 1_00_008

73 Hans G0UPL
 

Hi Mike

Thanks for the observations
?
I've noticed some things with 1_00_007:
1. Tuning is a bit jittery.??I'll be spinning the right encoder and tuning across the band and as I slow down the frequency changes in the opposite direction.

I have not noticed nor managed to reproduce this but will keep an eye out for it.?
?
2. The CW decoder is still on in DIGI mode so it is producing lots of text during FT8 QSOs.? It might be nice to automatically disable the CW decoder in DIGI mode.

Done in 1_00_008
?
3. There is no sidetone during CW message transmission (which doesn't actually transmit as others have observed).

I have fixed CW message transmission in 1_00_008. Actually the problem was, that it was doing a partial check of the parameters it was going to need if operating as a CW beacon - in this case, the beacon frequency. Then not using it, and NOT reporting an error?(because you weren't operating a CW beacon); so the CW messages storing would work normally, as long as you had the beacon frequency in the beacon menu set to any frequency in the band of operation. Me, I had it set up this way because I was testing the beacon function too; so of course I did not trigger the condition where the false-error is detected and un-reported... anyway it's all fixed now in 1_00_008.?
??
6. Sometimes the CW decoder would write to both the top and bottom rows of the display.

I believe I also fixed that one in 1_00_008.?

73 Hans G0UPL
 

Hello Colin

> Hans, a feature request, in GPS mode, scroll the incoming?
> data where the CW decode normally goes?

Do you mean the parsed GPS data like date, time, latitude, longitude, altitude? Surely not the RAW data - that would scroll past too fast to be useful.?

73 Hans G0UPL



On Sat, Aug 5, 2023 at 9:50?PM Colin Kaminski <colinskaminski@...> wrote:
Hans, a feature request, in GPS mode, scroll the incoming data where the CW decode normally goes?
--
Colin - K6JTH?
 

Hans, a feature request, in GPS mode, scroll the incoming data where the CW decode normally goes?
--
Colin - K6JTH?
 

Hi Hans,

I've noticed some things with 1_00_007:
1. Tuning is a bit jittery.??I'll be spinning the right encoder and tuning across the band and as I slow down the frequency changes in the opposite direction.
2. The CW decoder is still on in DIGI mode so it is producing lots of text during FT8 QSOs.? It might be nice to automatically disable the CW decoder in DIGI mode.
3. There is no sidetone during CW message transmission (which doesn't actually transmit as others have observed).
4. Lots of birdies (as mentioned by others).? ?Hopefully the power supply PWM auto-adjustment will take care of that.
5. On 40m there is quite noticeable variation in background noise level when tuning across the band (maybe the passband on my rig is not flat).
6. Sometimes the CW decoder would write to both the top and bottom rows of the display.

That's it for now.

73, Mike KK7ER
 

开云体育

Doesn't transmit in digital mode require an audio signal as well as the PTT being down?

Chris, G5CTH
 

I notice that Diagnostics Transmit (T) only works in CW mode.
 

Hi Cliff, and particularly everyone else -?

Is anyone else seeing any of this? If? I go into the menu, change . to , and come out of the menu, it takes effect immediately... and I've never seen a sweep hang up... fldigi is a different matter.?

73 Hans G0UPL



On Fri, Aug 4, 2023 at 5:58?PM Cliff <ae5zaham@...> wrote:
Hi Hans,

The RF Sweep issue has been in multiple firmware versions and multiple factory resets. Normally immediately after a reset it will do ok, but power off and back on and the issue returns. I have had emails with other ops that have experienced the same thing. It's very odd as it completely locks up the QMX. Normally it will start the sweep and somewhere around 30% it will hang. If I avoid 40M and 60M then the other bands are fine. Just those bands.

I'll try again, but I can't use 007 with fldigi for the reason I mentioned before so I am running on 006. BTW, the other night I had a good 40 minute chat QSO with my QMX from Texas to New Zealand on 20M using fldigi and Olivia mode. I much prefer a real rag chew QSO to the FT8 etc. type of operation.

Loaded 007 and did a factory reset. The above problems still remain. I don't understand how my rig can be different from yours, but it obviously is. I'm always in digi mode if that makes any difference.

RF Sweep started on 40M and ran to 31% and hung, 60M hung at 57%.?

The factory reset set the delimiter back to "," . Changed it to "." then powered off. Powered on and went to config and tried to set to "," and it would NOT change.?

Thankfully the above do not affect the operation of the radio. As a matter of fact it is doing great if I use firmware 006. I hope you have been able to duplicate this issue with fldigi.

73,
Cliff, AE5ZA



On Aug 4, 2023, at 07:48, Hans Summers <hans.summers@...> wrote:

Hello Cliff
?
I changed the delimiter from "," to "." back in firmware 006. Tried to change it again and it will not take any changes. It always comes up the same even on 007. Ideas? Bug?

I can't reproduce this...?
?
Also the RF sweeps still hang on 40 and 60meters as it has for a couple of firmware versions now. It leaves the QMX locked up so only a power cycle will get it going again.

Or this...?

Could I suggest you try a factory reset? Something could have got somehow freaked out in your EEPROM.??

73 Hans G0UPL
 

开云体育

Hi Hans,

The RF Sweep issue has been in multiple firmware versions and multiple factory resets. Normally immediately after a reset it will do ok, but power off and back on and the issue returns. I have had emails with other ops that have experienced the same thing. It's very odd as it completely locks up the QMX. Normally it will start the sweep and somewhere around 30% it will hang. If I avoid 40M and 60M then the other bands are fine. Just those bands.

I'll try again, but I can't use 007 with fldigi for the reason I mentioned before so I am running on 006. BTW, the other night I had a good 40 minute chat QSO with my QMX from Texas to New Zealand on 20M using fldigi and Olivia mode. I much prefer a real rag chew QSO to the FT8 etc. type of operation.

Loaded 007 and did a factory reset. The above problems still remain. I don't understand how my rig can be different from yours, but it obviously is. I'm always in digi mode if that makes any difference.

RF Sweep started on 40M and ran to 31% and hung, 60M hung at 57%.?

The factory reset set the delimiter back to "," . Changed it to "." then powered off. Powered on and went to config and tried to set to "," and it would NOT change.?

Thankfully the above do not affect the operation of the radio. As a matter of fact it is doing great if I use firmware 006. I hope you have been able to duplicate this issue with fldigi.

73,
Cliff, AE5ZA



On Aug 4, 2023, at 07:48, Hans Summers <hans.summers@...> wrote:

Hello Cliff
?
I changed the delimiter from "," to "." back in firmware 006. Tried to change it again and it will not take any changes. It always comes up the same even on 007. Ideas? Bug?

I can't reproduce this...?
?
Also the RF sweeps still hang on 40 and 60meters as it has for a couple of firmware versions now. It leaves the QMX locked up so only a power cycle will get it going again.

Or this...?

Could I suggest you try a factory reset? Something could have got somehow freaked out in your EEPROM.??

73 Hans G0UPL
 

Hello Cliff
?
I changed the delimiter from "," to "." back in firmware 006. Tried to change it again and it will not take any changes. It always comes up the same even on 007. Ideas? Bug?

I can't reproduce this...?
?
Also the RF sweeps still hang on 40 and 60meters as it has for a couple of firmware versions now. It leaves the QMX locked up so only a power cycle will get it going again.

Or this...?

Could I suggest you try a factory reset? Something could have got somehow freaked out in your EEPROM.??

73 Hans G0UPL
 

Hello Simon

There is no AGC yet. And the S-meter is not related to the AGC in this case. The S-meter was just implemented based on QCX and is not correct for QMX, so I have disabled it temporarily; but it had no effect on AGC which is not yet implemented in QMX.?

Operation of QMX without the AGC is perfectly possible; it seems to me you probably?have the audio gain turned up much too high and it is causing the DAC output to clip, which inflicts terrible distortion.?

73 Hans G0UPL



On Thu, Aug 3, 2023 at 10:44?AM Simon <scharlachrot@...> wrote:
Hi Manuel,

That I understood. My question was more about whether the not yet activated AGC/S-meter could have something to do with it. I also wanted to point out that CW operation (for me) is not possible like this. At least not if one is concerned about his hearing ability.?

1 - 20 of 40