Closed DG9BFC closed 3 years ago
getting closer ... now it says rx0 port not found
but what is the text printed on the command shell
Op ma 29 jun. 2020 om 15:52 schreef DG9BFC notifications@github.com:
getting closer ... now it says rx0 port not found
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-- Jan van Katwijk
nothing in command shell ...
It looks like you started it first on the console, closed it and then started it in Windows.
I wonder because there is an empty command line after you have started it.
OK, I see (yes, it is windows of course), here is a link to a version that prints a lot of data on the command shell window https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0
Op ma 29 jun. 2020 om 16:19 schreef DG9BFC notifications@github.com:
[image: pluto_test2] https://user-images.githubusercontent.com/17382592/86017320-6c291c80-ba13-11ea-9f98-c3ee5aa3c52b.jpg
nothing in command shell ...
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i left away the upper part (soundcard settings etc) ... cause i thought the lower end is where we have the problem
Well it indicates that it cannot set the sampling frequency
For the rest of the day I have to do other things, tomorrow I'll have a look at the sampling frequency
Op ma 29 jun. 2020 om 16:39 schreef DG9BFC notifications@github.com:
[image: errors1] https://user-images.githubusercontent.com/17382592/86019430-1efa7a00-ba16-11ea-9161-d74d851ccd09.jpg
i left away the upper part (soundcard settings etc) ... cause i thought the lower end is where we have the problem
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Jan,
SR without decimation is minimum 2.083KS : See the documentation https://wiki.analog.com/resources/tools-software/linux-drivers/iio-transceiver/ad9361 If you need exactly this SR, you could use the decimation by 2 or 4. I could help you on that if needed (you need to set a lowpass FIR)
NOTE: In the minimum ADC rate is 25MSPS. Baseband rates below 2.083 MSPS (25MSPS/12) require FIR decimation/interpolation to be set. In other words the FIR filter needs to be configured and enabled. The minimum baseband rate with the FIR filter (decimate by 4) enabled is: 25MSPS /(4*12) = 520.83 kSPS.
Le lun. 29 juin 2020 à 16:46, JvanKatwijk notifications@github.com a écrit :
Well it indicates that it cannot set the sampling frequency
For the rest of the day I have to do other things, tomorrow I'll have a look at the sampling frequency
Op ma 29 jun. 2020 om 16:39 schreef DG9BFC notifications@github.com:
[image: errors1] < https://user-images.githubusercontent.com/17382592/86019430-1efa7a00-ba16-11ea-9161-d74d851ccd09.jpg
i left away the upper part (soundcard settings etc) ... cause i thought the lower end is where we have the problem
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.
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See my posting dated 16th, asking for the sampling rate...
For DAB we need exactly 2048000 IQ samples/second. If 2500000 is a decent option for the hardware, it is not big deal to do a software conversion, that is what is happening with the airspy as well, but it would be helpful to just know what decent values are. I must say that the documentation for the pluto lacks is below average (Most others just give an APi with a concise description of the functions and allowed and expected ranges for the value)
Op ma 29 jun. 2020 om 16:53 schreef F5OEO notifications@github.com:
Jan,
SR without decimation is minimum 2.083KS : See the documentation
https://wiki.analog.com/resources/tools-software/linux-drivers/iio-transceiver/ad9361 If you need exactly this SR, you could use the decimation by 2 or 4. I could help you on that if needed (you need to set a lowpass FIR)
NOTE: In the minimum ADC rate is 25MSPS. Baseband rates below 2.083 MSPS (25MSPS/12) require FIR decimation/interpolation to be set. In other words the FIR filter needs to be configured and enabled. The minimum baseband rate with the FIR filter (decimate by 4) enabled is: 25MSPS /(4*12) = 520.83 kSPS.
Le lun. 29 juin 2020 à 16:46, JvanKatwijk notifications@github.com a écrit :
Well it indicates that it cannot set the sampling frequency
For the rest of the day I have to do other things, tomorrow I'll have a look at the sampling frequency
Op ma 29 jun. 2020 om 16:39 schreef DG9BFC notifications@github.com:
[image: errors1] <
https://user-images.githubusercontent.com/17382592/86019430-1efa7a00-ba16-11ea-9161-d74d851ccd09.jpg
i left away the upper part (soundcard settings etc) ... cause i thought the lower end is where we have the problem
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.
-- Jan van Katwijk
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but bandwidth of 1536 KHz is possible I believe (read somewhere from 200KHz to ...)
Op ma 29 jun. 2020 om 17:12 schreef andimik notifications@github.com:
See my posting dated 16th, asking for the sampling rate...
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Yes, 1536khz on 2048 is possible, but the only condition is to set a decimation factor (and the FIR which go with it). You can use eventually https://github.com/analogdevicesinc/libad9361-iio : I didn't choose to use it , but it could maybe easier if you want to use automatic FIR calculation filter
aehem .... does it play a role that the pluto is now set to have a "compatible" tuner and is set to 9364 (hack to increase tuning range 70 megs to 6 gig) or is that been solved in the fw itself?
https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0
I set the samplerate and bandwidth to 2.5M and added a simple downconverter (linear interpolation, same code as applied to airspy). So, give it a try so we can see the next bottleneck
Op ma 29 jun. 2020 om 17:51 schreef F5OEO notifications@github.com:
Yes, 1536khz on 2048 is possible, but the only condition is to set a decimation factor (and the FIR which go with it). You can use eventually https://github.com/analogdevicesinc/libad9361-iio : I didn't choose to use it , but it could maybe easier if you want to use automatic FIR calculation filter
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SampleRate OK... now Frequency :
Interesting
The frequency is in the range 170 - 220 MHz, the pluto is able to handle that?
Op di 30 jun. 2020 om 10:38 schreef F5OEO notifications@github.com:
SampleRate OK... now Frequency : [image: Screenshot from 2020-06-30 10-36-03] https://user-images.githubusercontent.com/6190918/86103970-bc5cb900-babd-11ea-8355-11f74b3f08fe.png
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-- Jan van Katwijk
YES after "hack" is done it tune 70 megs up to 6 gig so 170 to 220 is no problem i can also receive fm local stereo on 88 to108 with it so definitely it works that low
Jan , you should access my pluto for testing (see your mailbox)
https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0 I uploaded a version that was - more or less - debugged with a remote pluto. On the remote pluto it allows setting frequency and gain, and it even returns samples (too limited due to bandwidth problems to be useful though) give it a try
Op di 30 jun. 2020 om 14:13 schreef DG9BFC notifications@github.com:
YES after "hack" is done it tune 70 megs up to 6 gig so 170 to 220 is no problem i can also receive fm local stereo on 88 to108 with it so definitely it works that low
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Seems better.. need to plug an antenna and set a dab modulator to check (nothing on spectrum right now)
GOTCHA ... HURRAY IT WORKS
aehem ... evariste ... no need to fire up a dab modulator you have one?!? i was not aware that such thing exists greetz sigi dg9bfc ps many thanks for stepping in here and offering jan the needed help ... no idea if we can finetune receiving a bit but at least it works
OK I'll first remove some of the printing stuff and add some stuff to have the driver remember the gain setting from the previous invocation. Actually you have to thank F5OEO since he set up his pluto for remote use, that made things a lot easier
to be continued
Op di 30 jun. 2020 om 14:50 schreef DG9BFC notifications@github.com:
[image: pluto_works] https://user-images.githubusercontent.com/17382592/86127912-2aaa7700-bad0-11ea-9196-fe3755083c35.jpg
GOTCHA ... HURRAY IT WORKS
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ok ... then "clean up your code" ... and we have another sdr added ... SUPERB JOB (especially cause you do not own a pluto it was a bit difficult ... sure) yes i thank evariste (not only for helping here but also for his massive work on the firmware) does it mean now we have a qt dab 3.4.2 ?!? (grin)
i found a tiny bug when i fire it up i can set gain manually up and down when i switch on agc gain goes up to max (same as when setting to 73 db gain) and when i switch agc off again it say can not set hardware gain and ... the bit error rate in spectrum view is difficult to read (but that is cosmetics)
default gain with 33 db is way way to low ... either switch on agc by default or set gain to max as default (pluto is not very sensitive) ... i have it now connected to a real dab antenna (vhf low band yagi) with around 10m coax (low loass sat cable) and signals are at the low end even if i crank up gain to max ... a preamp may help to increase the level a bit ... when no preamp used i think you can use max gain and agc on as default
The version I am preparing will "remember" the gain setting between invocations, it will spit out less "garbage" as well. The negative number you circle around on the control widget is a quality indicator for the signal, a good signal shows a positive value.
Op di 30 jun. 2020 om 15:41 schreef DG9BFC notifications@github.com:
default gain with 33 db is way way to low ... either switch on agc by default or set gain to max as default (pluto is not very sensitive) ...
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https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0
Give this version a try, it will maintain some values between invocations.
Op di 30 jun. 2020 om 15:47 schreef jan van katwijk <j.vankatwijk@gmail.com
:
The version I am preparing will "remember" the gain setting between invocations, it will spit out less "garbage" as well. The negative number you circle around on the control widget is a quality indicator for the signal, a good signal shows a positive value.
Op di 30 jun. 2020 om 15:41 schreef DG9BFC notifications@github.com:
default gain with 33 db is way way to low ... either switch on agc by default or set gain to max as default (pluto is not very sensitive) ...
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works good ... seems as you can close command window after a bit of finetuning hi hi only thing is that the spectrum view is a bit low compared to an rtl dongle receive works from 30db gain upwards to max gain ... the only thing that puzzels a bit is with lower gain it shows higher snr in main window ... receiving in both cases works good here compare two different dab channels pluto and rtl dongle the rtl shows higher signals (receiving is the same in both devices) but that is only a bit of cosmetics to be done ... the error rate is nearly the same ... but the signal in spectrum is higher in the rtl dongle
OK thanks
For today I'll have to do some other things, but I m happy about the progress Btw the SNR is computed from the incoming signal, where as "low" value, the value of the null period is taken
Have a nice evening
Op di 30 jun. 2020 om 16:54 schreef DG9BFC notifications@github.com:
works good ... seems as you can close command window after a bit of finetuning hi hi only thing is that the spectrum view is a bit low compared to an rtl dongle receive works from 30db gain upwards to max gain ... the only thing that puzzels a bit is with lower gain it shows higher snr in main window ... receiving in both cases works good here compare two different dab channels pluto and rtl dongle the rtl shows higher signals (receiving is the same in both devices) but that is only a bit of cosmetics to be done ...
[image: spectrum_pluto] https://user-images.githubusercontent.com/17382592/86141131-394d5a00-bae1-11ea-9165-e88c616d1541.jpg [image: spectrum_pluto2] https://user-images.githubusercontent.com/17382592/86141136-3a7e8700-bae1-11ea-8da2-7188da7fd154.jpg [image: spectrum_rtl] https://user-images.githubusercontent.com/17382592/86141139-3b171d80-bae1-11ea-8126-e63aecc83ab1.jpg [image: spectrum_rtl2] https://user-images.githubusercontent.com/17382592/86141143-3c484a80-bae1-11ea-8582-664eafe8b7e1.jpg
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it works fine ... woud you be so kind and compare another version that keeps commad window closed?!? then we can spread it out to the masses i think (3.4.2 hi hi or is it 3.4.1beta??) besides the a bit low spectrum view it works superb ... i can switch between pluto and rtl back and forth (and switch antenna cable) and it shows same performance ... i have a few channels that are VERY low in signal and even there it locks ... so i think its solved for now (besides the open command window) ... evariste may have a closer look on your code (if he has time to do that) ... maybe he finds something to finetune what about when pluto is connected to a network and has a different url??) ... but for now (in usb mode) it works superb MANY MANY MANY THANKS (do you have a donation button somewhere hidden?!?)
ok and now i made a test with a very low signal channel ... shows some dropouts on rtl but clean receive on pluto ... so it seems as the pluto is a tiny bit better on receive only thing is ... if it losts lock cause i browse internet ... unlocking is caused by pc overload so not a real problem ... (now i know for what that reset btton is in the gui hi hi) but ... after pressing the reset button it does not lock reliably (dropouts) ... when i switch to rtl and then to pluto the reset works much better (no dropouts then) ... so i guess its a bit of "puzzling the buffers" if you press reset button ... and if you do a fresh start from the pluto it works better (no mixing of the buffers)
https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0
I removed some small errors (gain setting), cleaned up some code
There are most likely still errors, but the start is there. Question: is it worthwhile to add a selector for a ppm correction? Furthermore, I am still adding a couple of things to the interface (internal, dependency on the library, other, possibility to dump the input into a file) I think it is too early to widespread the w version.
On donation button: I am retired with a reasonable old age pension, so if you want to donate then do it to your local radio amateur club or some charity in your neighbourhood. If you are on github then you can always add a star to the software
Op di 30 jun. 2020 om 18:39 schreef DG9BFC notifications@github.com:
ok and now i made a test with a very low signal channel ... shows some dropouts on rtl but clean receive on pluto ... so it seems as the pluto is a tiny bit better on receive only thing is ... if it losts lock cause i browse internet ... unlocking is caused by pc overload so not a real problem ... (now i know for what that reset btton is in the gui hi hi) but ... after pressing the reset button it does not lock reliably (dropouts) ... when i switch to rtl and then to pluto the reset works much better (no dropouts then) ... so i guess its a bit of "puzzling the buffers" if you press reset button ... and if you do a fresh start from the pluto it works better (no mixing of the buffers)
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-- Jan van Katwijk
Btw I called the version 3.4.2
Op wo 1 jul. 2020 om 13:47 schreef jan van katwijk j.vankatwijk@gmail.com:
https://www.dropbox.com/s/n19jzhgmohqcxm9/windows-qt-dab.zip?dl=0
I removed some small errors (gain setting), cleaned up some code
There are most likely still errors, but the start is there. Question: is it worthwhile to add a selector for a ppm correction? Furthermore, I am still adding a couple of things to the interface (internal, dependency on the library, other, possibility to dump the input into a file) I think it is too early to widespread the w version.
On donation button: I am retired with a reasonable old age pension, so if you want to donate then do it to your local radio amateur club or some charity in your neighbourhood. If you are on github then you can always add a star to the software
Op di 30 jun. 2020 om 18:39 schreef DG9BFC notifications@github.com:
ok and now i made a test with a very low signal channel ... shows some dropouts on rtl but clean receive on pluto ... so it seems as the pluto is a tiny bit better on receive only thing is ... if it losts lock cause i browse internet ... unlocking is caused by pc overload so not a real problem ... (now i know for what that reset btton is in the gui hi hi) but ... after pressing the reset button it does not lock reliably (dropouts) ... when i switch to rtl and then to pluto the reset works much better (no dropouts then) ... so i guess its a bit of "puzzling the buffers" if you press reset button ... and if you do a fresh start from the pluto it works better (no mixing of the buffers)
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works fine ... only thing that i then now see is that in the spectrum view the gain slider zoomes the signal less as the scale ... means in higher zoom a bit lower signal is seen but ... that is cosmetics and is also on the rtl dongle ... so far it works sometimes buffers seems puzzelt (when i have too high cpu load on this old core2duo) ... then i have dropouts and that aslo does not restore by itself ... pressing reset and a new lock ... and all is well ... so it is done very well from you (especially without owning a pluto by yourself) THUMBS UP aehem ... i do not think that you need to add ppm correction for the pluto ... on mine i can finetune it with a trimmer ... on all other plutos there is a set value in the config file (xo correction) ... so if your tcxo is no 40 megs but 39.999.980 ... then type that in the config file of the pluto and all is well pluto has a config file itself so you do not need an active correction in your soft if you really wanna do it ... then you first should get an own pluto .. grin mine is stable as a rock (after a bit of modding) and now ... i test that on my other a bit faster machine (atom tablet) and see how that works
ok tested on the tablet ... hmm seems as there is some timing problems ... dropouts and "brrrt brrt" sounds ... all few seconds ... a bit better when i use bluettooth out near no dropouts then ... but tiny crack every few seconds ... and you can hear that sometimes small parts are missing in the audio ... so audio flow is not smooth on this atom tablet ... on the (slower) core duo it works fine on both machines rtl has no problems
hello jan ... superb job for including pluto (so i will close issue soon!!) but .. can you PLEASE build installer for 64 windoze from your actual version (i can not use app image or compile from source) ... THANK YOU I would like to try out newest version (353???) but cause you have no installer for windows for all versions i lost track a ... may you compile a windows install please?? mini etc can be installed in same folder ... and when i have newest i can try that on both my machines greetz sigi dg9bfc
There is an installer for 3.5.3. I am working on a version - that contains some errors - and will make it available asap
Op vr 18 sep. 2020 om 14:52 schreef DG9BFC notifications@github.com:
hello jan ... superb job for including pluto (so i will close issue soon!!) but .. can you PLEASE build installer for 64 windoze from your actual version (i can not use app image or compile from source) ... THANK YOU I would like to try out newest version (353???) but cause you have no installer for windows for all versions i lost track a ... may you compile a windows install please?? mini etc can be installed in same folder ... and when i have newest i can try that on both my machines greetz sigi dg9bfc
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-- Jan van Katwijk
Adalm is now standard in Qt-DAB, both in the Linux and the windows version
i am sure a clever programmer can add the adalm pluto to the list of supported devices ... but sadly i am not a clever programmer :-( the needed driver files are open so it should not be that difficult to add this sdr in the list so ... please ... can you add the pluto in the list and add the needed drivers to the installer?!? thank you sooooo much dg9bfc sigi