Date   

Re: Pluto TX 'Bursting'

M5ADL
 

this is 2.1Mhz bw without any firewall on. I get the odd click on tx


Re: Pluto TX 'Bursting'

M5ADL
 

Simon,

Would you like a debug with Mcafee uninstalled and windows defender FW on ? It will take a while to get rid of mcafee.

Regards

Adrian


Re: Pluto TX 'Bursting'

M5ADL
 

Simon,

This is working with mcafee fw off as well.


Re: Pluto TX 'Bursting'

M5ADL
 

Simon,

This is working with windows defender private firewall off. Mcafee on.

Regards

Adrian


Re: Pluto TX 'Bursting'

Simon Brown
 

Hi Adrian,

 

I am desperate to get the DebugView output from you.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of m5adl@...
Sent: 22 March 2019 06:28
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Pluto TX 'Bursting'

 

Simon, with 3.06 and my PlutoSDR I was getting the bursting at the lowest bandwidths. Changing the buffer just resulted in different lengths of bursts. This was on an old AMD laptop and brand new HP I7 8550. However it seems to be fixed by turning off the Windows Firewall ! 
The bit I don’t understand is that it all works fine on a Windows 10 VM under Parallels on a 6 year old Mac Mini with firewall on!
i’ll do Debug later on both machines with and w/o firewall.
Thanks for the excellent software.

Adrian


Re: Pluto TX 'Bursting'

M5ADL
 

Simon, with 3.06 and my PlutoSDR I was getting the bursting at the lowest bandwidths. Changing the buffer just resulted in different lengths of bursts. This was on an old AMD laptop and brand new HP I7 8550. However it seems to be fixed by turning off the Windows Firewall ! 
The bit I don’t understand is that it all works fine on a Windows 10 VM under Parallels on a 6 year old Mac Mini with firewall on!
i’ll do Debug later on both machines with and w/o firewall.
Thanks for the excellent software.

Adrian


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

M0ZEH <m0zeh@...>
 

didn't notice as i was on my phone :)


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

Siegfried Jackstien
 

WRONG WRONG WRONG

he had distorted audio cause he used fm bw 12 kc or so (wfm is not bfm!!)

with switching to bfm the distortion is gone (I AM SURE ON THIS!!!)

i looked his screenshot (and zoomed it up to see what mode and bandwidth he selected) .... and it was not bfm 150 to 250kc (what you would need for local fm commercials on 88-108 megs)

he selected wfm ... and that is not wide enough

no wonder he had distorted audio ... it is NOT overdriving the chip so attenuation with hardware does not work!!!

dg9bfc sigi


Am 22.03.2019 um 06:19 schrieb M0ZEH:

Try attenuating the input to the dongle with hardware.
Steve m0zeh 


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

M0ZEH <m0zeh@...>
 

Try attenuating the input to the dongle with hardware.
Steve m0zeh 


Pluto TX 'Bursting'

Simon Brown
 

Hi All,

 

If you have the Pluto ‘bursting’ at lower bandwidths (< 2MHz) during TX please run Debug View https://www.sdr-radio.com/Support/Diagnostics#DebugView and transmit. I’m hoping there will be diagnostics written while the TX is bursting.

 

At higher bandwidths (>= 2MHz) the problem can just be USB bandwidth, but at lower bandwidths it may be a configuration / programming error.

 

Please attach the logfile from DebugView.

 

Simon Brown, G4ELI
www.sdr-radio.com


Re: Behringer CMD PL-1 available

wageners@...
 

Thanks for all the interest. The unit has been sold.

Stefan


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

Matthias Bopp
 

Hi,

I have tested the Lime-USB, the Lime-mini and the Pluto.

For Eshail-2 / QO-100 I have been using the Lime-USB with SDR-Radio.

The Lime-mini and the Pluto do not work perfect, for instance they have stuttering TX signals on many PCs.

In addition the Pluto has a very poor reference oscillator. The TCXOs in the Lime USB and the Lime-mini are much better.

There is quite a high drift of the Pluto when you start transmitting, not useable with CW and SSB.

IMHO the Pluto can only be used for QO-100 if you replace the reference oscillator or build a reference input for a GPSDO.

Meanwhile I had more than 100 QSOs with the Lime-USB and with the excellent SDR-Radio it is a real nice radio to work with.

SDR-Radio also provides GPIO support for the Lime-USB which is very helpful.

Kind regards

Matthias

www.dd1us.de


-----Ursprüngliche Nachricht-----
Von: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Im Auftrag von David J Taylor via Groups.Io
Gesendet: Donnerstag, 21. März 2019 11:49
An: main@SDR-Radio.groups.io
Betreff: Re: [SDR-Radio] Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

From: williamfitchturner@...

I'm not too familiar with the Lime. I'm thinking the Pluto is going to be my next purchase. For $150 it looks like a huge step up from the rtl-sdr:
larger frequency range, larger BW, on-board ARM processor, lots and lots of documentation. Would you recommend the Lime over the Pluto? If so why? Also, what is eshail?

Thanks Again
=============================

I have both and think there is slightly better software support for the Pluto, but it is limited slightly by USB 2.0 band width.

The LimeSDR USB I have has never worked properly and others have reported similar problems, but the LimeSDR Mini seems OK. Perhaps that shouldn't put you off.

Es’hail 2 / QO-100 - see: https://amsat-uk.org/satellites/geo/eshail-2/

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

David J Taylor
 

From: williamfitchturner@...

I'm not too familiar with the Lime. I'm thinking the Pluto is going to be my next purchase. For $150 it looks like a huge step up from the rtl-sdr: larger frequency range, larger BW, on-board ARM processor, lots and lots of documentation. Would you recommend the Lime over the Pluto? If so why? Also, what is eshail?

Thanks Again
=============================

I have both and think there is slightly better software support for the Pluto, but it is limited slightly by USB 2.0 band width.

The LimeSDR USB I have has never worked properly and others have reported similar problems, but the LimeSDR Mini seems OK. Perhaps that shouldn't put you off.

Es’hail 2 / QO-100 - see: https://amsat-uk.org/satellites/geo/eshail-2/

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

williamfitchturner@...
 

That did it! Thanks so much!

I'm not too familiar with the Lime. I'm thinking the Pluto is going to be my next purchase. For $150 it looks like a huge step up from the rtl-sdr: larger frequency range, larger BW, on-board ARM processor, lots and lots of documentation. Would you recommend the Lime over the Pluto? If so why? Also, what is eshail?

Thanks Again


Re: LimeSDR Mini - Es 'hail2 - TX at 2.4 GHz

Siegfried Jackstien
 

try with low bandwidth ... and try different buffer settings

i can tx in fullduplex on a "crappy old slow core2duo laptop" (over 10 years old!)

so if that works here ... any newer pc should work fine

dg9bfc sigi


Am 20.03.2019 um 13:31 schrieb robert best via Groups.Io:

I would thank Simon for Ver 3.06 because I can now get 'on air', and feel confident that any remaining issues will be resolved.
It works very smoothly with Win 10 on a PC with an Intel Core i5-8250U Processor and hopefully also soon with a slightly older PC.


Re: LimeSDR Mini - Es 'hail2 - TX at 2.4 GHz

robert best
 

I would thank Simon for Ver 3.06 because I can now get 'on air', and feel confident that any remaining issues will be resolved.
It works very smoothly with Win 10 on a PC with an Intel Core i5-8250U Processor and hopefully also soon with a slightly older PC.


Re: Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

Siegfried Jackstien
 

you switched to wfm ... but you have to switch to bfm (broadcasting fm) to hear local stereo fm stations

in wfm you do not have the needed bw available that you have to use for broadcasting stations on 88-108 megs

try with bfm and you will have clear audio (plus stereo and rds decode)

hth

dg9bfc sigi

ps you would like it even more if you would have a lime or pluto and work over eshail ... grin

Am 20.03.2019 um 06:29 schrieb williamfitchturner@...:

SDR Console Version: 3.0.6
SDR HW: SRL-SDR.com V3 dongle (RTL2832U)
Computer: Lenovo Thinkpad, Windows 10
Default BW: 2.4 MHz

I recently installed SDR Console and I really like the interface. So far, it seems to have everything that I like about SDR# but it's way cleaner and less fiddly. It even has support for satellite tracking! Unfortunately, the audio that I get from the software when listening to FM sounds super overdriven. It sounds like the gain is turned up all the way all the time. I messed around with the gain feature in the setup page before realizing that it only provides an offset for the graphs and doesn't adjust the sound at all. I've tried turning the gain all the way down and it still sounds distorted, just a little bit quieter. AGC on/off doesn't seem to make a difference either. When I adjust the gain, the spectrum and waterfall plots scale down accordingly but, the volume indicator on the top left still shows that the signal is peaking constantly (see picture). 

I have updated all drivers/software/OS on my laptop. I've tested SDR# and GNURadio and they both work really well. GQRX seems to have a different issue related to the VB-Cable software; not sure what that's about. At any rate, I this problem seems to only be affecting SDR Console. I can't seem to figure it out. Any help would be greatly appreciated. 

Thanks



Re: sdr console crash

clodc@...
 

If the external radio is power off everything works, if the external radio is online or does not responding it crashes.
With the old version this did not happen or rarely, is now constant.

thanks
ik5ivq


Excessive Distortion with RTL_SDR dongle #rtl #sdrconsolev3

williamfitchturner@...
 

SDR Console Version: 3.0.6
SDR HW: SRL-SDR.com V3 dongle (RTL2832U)
Computer: Lenovo Thinkpad, Windows 10
Default BW: 2.4 MHz

I recently installed SDR Console and I really like the interface. So far, it seems to have everything that I like about SDR# but it's way cleaner and less fiddly. It even has support for satellite tracking! Unfortunately, the audio that I get from the software when listening to FM sounds super overdriven. It sounds like the gain is turned up all the way all the time. I messed around with the gain feature in the setup page before realizing that it only provides an offset for the graphs and doesn't adjust the sound at all. I've tried turning the gain all the way down and it still sounds distorted, just a little bit quieter. AGC on/off doesn't seem to make a difference either. When I adjust the gain, the spectrum and waterfall plots scale down accordingly but, the volume indicator on the top left still shows that the signal is peaking constantly (see picture). 

I have updated all drivers/software/OS on my laptop. I've tested SDR# and GNURadio and they both work really well. GQRX seems to have a different issue related to the VB-Cable software; not sure what that's about. At any rate, I this problem seems to only be affecting SDR Console. I can't seem to figure it out. Any help would be greatly appreciated. 

Thanks



Re: LimeSDR Mini - Es 'hail2 - TX at 2.4 GHz

Clive Sanders
 

Firstly my thanks to Simon for the ongoing work and also to add to Roberts comment.  Whilst having no problem getting the Lime mini to transmit I do agree with the observation regarding its initialisation routine leaving it in transmit.  Once the PTT button is operated it works normally so it would appear that something in the start-up routine is responsible. I don't think it's really safe to put it onto a 'live' system whilst this occurs.

As a matter of interest I have over the last few days done some tests on the Lime mini involving injecting an external clock.  I think the support for this in SDR console's settings are a left over from the Lime USB.  The external clock in the mini is actually applied by physically switching R59/62 an  i.e. a hardware modification has to be applied and the switch from internal clock to external cannot be made by software alone.

Doing some tests with Lime Suite the mini seems a bit 'picky' regarding the external clock values it runs with and I ended up using 40MHZ which is the same as the internal VCTCXO,  having done that another problem manifest itself as the mini then fails the stock quick tests and calibrations (I noticed also that the SDR console log threw errors as well).  The errors relate to the fact that the mini's VCTCXO is, it would seem, 'exercised' by the DAC providing it's control voltage and expects to see a corresponding change in the VCTCXO's output frequency a reasonable test to be applied to ensure overall functionality but clearly with the internal oscillator disconnected cannot take place.

I ended up restoring the original hardware link to the internal VCTCXO and trimmed its 40MHZ output by means of a loosely coupled and GPS locked service monitor whilst adjusting the DAC via Lime Suite. The final value is then written to the mini and persists.  I would though say that a degree of luck is needed to hit the right frequency as the DAC resolution is quite coarse. This I see is already documented in the Myriad Discourse forum where a possible substitution of the DAC is suggested it would though require also that the software is rehashed accordingly.

I'm a newcomer to the Lime mini and find it a great little device to play with and it works well as a receiver with SDR Console.  My initial tests on transmit have on occasion caused SDR Console to crash but when it works it is good.  I have just made up a small amplifier with 2.4 GHz SAW filtering and Gali-84+ to move towards a rx/tx solution to use with my existing 2.4GHz PA once the initialisation issues are resolved.

Regards

Clive, G4KCM