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TOPIC: Bug Report - Tune Function

Bug Report - Tune Function 07 Feb 2020 21:38 #1

  • DL9NBJ
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The interaction with an external tuner is a disaster. When I switch the band, the SWR can be very high because it has not yet been tuned. If I press Tune nothing happens at first, although the control is set to 20%. If I move the Tune control to the right, software moves it back to the left.
I have to do this on ervery tune step.

Setting the tune slider to 20% the Output at 50Ohm is only 3 Watts.
Settng the tune slider to 10% the Output Power is 0.5 Watts. Why?
When i work on FT8, there is also a tune Button. He sends audio via virtual audio cable, this works fine with external tuner, because SunSdrDX brings enough power and didnt reduce it automaticaly.
Maybe this is the better way:
If tune button is pushed, tune Power is like the slider position. If SWR goes under 1,5 Tuning process stopps (as option) If SWR is not changing stop after x seconds.
Maybe we need 2 Tune Buttons, autotune and tune (manually)
vy 73 de Thilo DL9NBJ

Problems with my SunSDR2DX:

VOX - works only on 2m, not on HF
TUNE - does not work, reduces power when tuning if SWR is bad
Displayed supply voltage has incorrect values
Crosstalk betwen antenna ports A2 <-> A1
Solved: ... ;-(
Last Edit: 07 Feb 2020 21:38 by DL9NBJ.
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Bug Report - Tune Function 10 Feb 2020 08:15 #2

  • Rome
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We'll release our own external tuner before summer.
This ATU can be seamlessly connected to the TRX, you won't have to make any settings in the software, just enable it, that's all.
Роман, Roman
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Bug Report - Tune Function 10 Feb 2020 18:00 #3

  • DL9NBJ
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Hello Roman. Unfortunately I cannot accept that. I do not want to buy a new tuner, but want to operate my automatic tuner on the Sundsdr2dx. I just don't understand why this simple tune function doesn't work until today. How long have you been on the market?
Overall, I'm not unhappy with my SundSdr2DX, but frankly I'm a little surprised at how many open construction sites there are on the software.

I don't think it is okay to refer to a future tuner if only the software causes problems.
Everyone who wants to tune a power amplifier or a tuner needs this tune function, regardless of whether it is a handheld or automatic tuner.

Please bring out a bug fix with a working tune function.
vy 73 de Thilo DL9NBJ

Problems with my SunSDR2DX:

VOX - works only on 2m, not on HF
TUNE - does not work, reduces power when tuning if SWR is bad
Displayed supply voltage has incorrect values
Crosstalk betwen antenna ports A2 <-> A1
Solved: ... ;-(
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Bug Report - Tune Function 11 Feb 2020 06:05 #4

  • Rome
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Hi, Thilo.
I was referring to the fastest and most reliable solution.
We had a nice suggestion earlier to implement control of the external tuner in the ExtCtrl menu, which we'll probably do, but not right now.
According to the current development plan, the next features in the ESDR2 will be new Band Manager, XVTR and ALC.
Probably, if it'll be easy to do, we might squeeze in this external tuner control in the new Band Manager development plan, but I cannot promise it.
Роман, Roman
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Bug Report - Tune Function 11 Feb 2020 12:18 #5

  • 2E0GKG
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Hi Rome

What I think is needed is the ability to Tune with around 10W without the protection kicking in which lowers the power too much when the ATU is tuning. This was never an issue on the SunSDR Pro2 which works really well with an ATU .The Anan's for example have an option to bypass the protection for low power in tune mode - something similar is what we need.

Most ATUs will tune at around 10W so that is all that is needed an option to allow to tune at that low power that will not cause damage to the output transistors.

Thanks

Nicholas
Last Edit: 11 Feb 2020 12:19 by 2E0GKG.
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Bug Report - Tune Function 11 Feb 2020 12:23 #6

  • e72x
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2E0GKG wrote:
Hi Rome

What I think is needed is the ability to Tune with around 10W without the protection kicking in which lowers the power too much when the ATU is tuning. This was never an issue on the SunSDR Pro2 which works really well with an ATU .The Anan's for example have an option to bypass the protection for low power in tune mode - something similar is what we need.

Most ATUs will tune at around 10W so that is all that is needed an option to allow to tune at that low power that will not cause damage to the output transistors.

Thanks

Nicholas

+1
exactly
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Bug Report - Tune Function 17 Feb 2020 12:51 #7

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I've been using an LDG AT200PC on my DX since I've gotten it. It was a lot more of an issue to use before the "update 4" release and it would bounce out of the tune cycle when it detected 3:1 or higher during the tune cycle. Since that update, I've had no issues at all using my AT200PC tuner.

I'm not sure this is helpful to you but I just wanted to mention it because it seemed to be on topic.
Current set up: SunSDR2 DX, HiFi audio, Alpha Delta DX-CC up 20 feet.
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Bug Report - Tune Function 17 Feb 2020 20:10 #8

  • DL9NBJ
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Hello N1MJF
Interesting. I also use 1.3.1 Update 4 with different results. Everything depends of course on the tuner, the SWR of the antenna and the setting under TX High SWR protection. If I put it higher, Max is 5, it works better but not well.
Feederline antennas usually have a high SWR when not tuned.
It can work if you tune a beam or a dipole, which has already been tuned during setup.

Of course, this is a software bug because the tuning function with SWR protection did not work properly. And as Nicholas wrote, 10 or 20 watts should be enough power.

What's more, the software constantly adjusts the tune and drive controls when I tune.
vy 73 de Thilo DL9NBJ

Problems with my SunSDR2DX:

VOX - works only on 2m, not on HF
TUNE - does not work, reduces power when tuning if SWR is bad
Displayed supply voltage has incorrect values
Crosstalk betwen antenna ports A2 <-> A1
Solved: ... ;-(
Last Edit: 17 Feb 2020 20:11 by DL9NBJ.
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Bug Report - Tune Function - Rig freezes 04 Mar 2020 21:09 #9

  • SM0JZT
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Hi there.
I have been helping a good friend with his DX-station to set it up.

Interresting enough the rig freezes when do a retune with a autotuner.
To get out of the freeze (you cannot reach out to the radio from the client SW you have to do a cold reboot to get it back on line.

This is very annoying with the radio as it is set up in a remote location. So you have to go there to restart the radio.

To me this is a solid bug in the software and may be related to the "Tune Function" bug reported in this tread.

A firmware update is needed I assume. Any ideas on this Roman ??

B.r / Tilman SM0JZT
SM0JZT - Tilman D. Thulesius
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Bug Report - Tune Function - Rig freezes 05 Mar 2020 06:55 #10

  • Rome
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Hi, Tilman.
Please describe your setup.
When you tune an external tuner you should emmit around 10W output power.
As you can see in the UM, page 106, there are several FW based protections.
eesdr.com/images/Document/SunSDR2_DX/SunSDR2_DX_User_Manual_ENG.pdf
Роман, Roman
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Bug Report - Tune Function - Rig freezes 05 Mar 2020 08:57 #11

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Rome
Thank you for coming back to me

Of course we try to tune with 10W. But it might happen that it exeeds that. One would think that it is fine that the protection stops transmission of something overheats or similar.
But Im having a hard time accepting that the station freezes so that you have to do a cold restart ??

This is especially hard to handle when having the station remote so that I have to send someone on site to do the restart.

Im sure you have a bugfix ready for us on this.

Thank you / Tilman SM0JZT
SM0JZT - Tilman D. Thulesius
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Bug Report - Tune Function 10 Mar 2020 12:04 #12

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Rome

I had another ready trough this topic and all the comments therein.
Apparently we all seem to have the same problem, related to tuning.

I understand that have a nasty effect in that my DX freezes so that I have to do a cold reset so that Im able to communicate with it from my PC.

As you can imagine, this is very hard to handle if you run the station remotely with about 200km distance...

This is hard to handle. What is your view on a resolution for this in software. A remote switch is not the solution to me.

B.r Tilman SM0JZT
SM0JZT - Tilman D. Thulesius
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Bug Report - Tune Function 11 Mar 2020 14:18 #13

  • Rome
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Hi, Tilman.
We haven't encountered this issue yet, next week we'll test it.
In the meantime please let me know, what type of server do you use RPi or PC?
Can you ping the TRX after it froze?
Роман, Roman
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Bug Report - Tune Function 13 Mar 2020 14:19 #14

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Roman
We use a Win10 PC and the most recent Server SW/client

/ Tilman
SM0JZT - Tilman D. Thulesius
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Bug Report - Tune Function 23 Mar 2020 13:15 #15

  • SM0JZT
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Roman
What about the testing that you wanted to undertake last week. Any progress ??

When the radio is frozen you cannot get to it in any way over the network. No Ping no nothing.
Only way to get it up again is to do a cold start to it.

And as I wrote this is VERY inconvenient as the radio is used remotely, so that you need to get to it to have it restarted :-(
.
SM0JZT - Tilman D. Thulesius
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