Date   
Re: Weird SpyServer Problem ? #spyserver

Edward MacDonald
 

No. Connecting and reconnecting SDR# from the server has no effect. I do not think SDR# is causing the problem.

The only thing that fixes the problem is to remove the dongle from the USB port and insert it into another port, however the problem always comes back. 

The dongles I am using are are an RTL-SDR dongle (genuine model not a knockoff) and a Noelec Smart 2.

I have also made sure the USB ports are not going to sleep. I have tried 3 different machines running the SpyServer. I have tried to play with the config for SpyServer. The SpyServer seems to be still functioning properly while this happens as well...




On Tue., Apr. 7, 2020, 12:37 p.m. Rodrigo Pérez, <bilson@...> wrote:
Hi,

Same here with spyserver on raspberry pi 3, raspbian buster and rtf-sdr v3.
Restart spyserver dont solve the problem, I have a crontab to reboot every hour.

Regards




On martes, abr. 07, 2020 at 1:26 a. m., Edward MacDonald <edwardmacdonald74@...> wrote:
I have been successfully running SpyServer on my Win10 64 bit computer with no problems for the past couple of months with ONE EXCEPTION.

Sometimes (seemingly random) the when I connect to the spy server from any device, everything seems to be working properly EXCEPT that the SNR level is always max, the spectrum trace is always pegged and there is no audio of any type. nor does any setting change in the SDR# app make any difference.

Here is what SDR# looks like when this happens...

I have played with the settings in SpyServer, still happens. Nothing has changed on Windows. I have tried to host the server on three different machines, with two different SDR dongles and the same thing happens.  Am I doing something wrong or does anyone have any info on this problem? 

I have also noticed this same problem when connecting to other peoples SpyServers in some cases. So I am assuming it is not just me that has this problem.  

The only thing that seems to correct the problem is a restart of the computer that is hosting the SpyServer (sometimes) OR to remove and re-insert the SDR dongle into a DIFFERENT USB port, however, it still might randomly start doing it again...


Any help would be much appreciated.

Re: Weird SpyServer Problem ? #spyserver

Brian Gregory
 

Ah.
As I understand it spyserver and SDR# support for RTl-SDR dongles is experimental and can't be relied on to work.

On Tue, 7 Apr 2020 at 19:37, Rodrigo Pérez <bilson@...> wrote:
Hi,

Same here with spyserver on raspberry pi 3, raspbian buster and rtf-sdr v3.
Restart spyserver dont solve the problem, I have a crontab to reboot every hour.

Regards




On martes, abr. 07, 2020 at 1:26 a. m., Edward MacDonald <edwardmacdonald74@...> wrote:
I have been successfully running SpyServer on my Win10 64 bit computer with no problems for the past couple of months with ONE EXCEPTION.

Sometimes (seemingly random) the when I connect to the spy server from any device, everything seems to be working properly EXCEPT that the SNR level is always max, the spectrum trace is always pegged and there is no audio of any type. nor does any setting change in the SDR# app make any difference.

Here is what SDR# looks like when this happens...

I have played with the settings in SpyServer, still happens. Nothing has changed on Windows. I have tried to host the server on three different machines, with two different SDR dongles and the same thing happens.  Am I doing something wrong or does anyone have any info on this problem? 

I have also noticed this same problem when connecting to other peoples SpyServers in some cases. So I am assuming it is not just me that has this problem.  

The only thing that seems to correct the problem is a restart of the computer that is hosting the SpyServer (sometimes) OR to remove and re-insert the SDR dongle into a DIFFERENT USB port, however, it still might randomly start doing it again...


Any help would be much appreciated.



Re: USB Connectivity and Windows 10

Mitch
 

Updates will sometimes change the power settings, particularly for ethernet and USB.  If the device's USB port gets turned off because of a power setting, it may "disappear".  It's worth a check in Device Manager settings for each USB device you connect.

On 4/7/2020 15:05, HERB KEATON N2GEW wrote:
...
Trying to diagnose this, do I look first to the radio, the USB cable/connection or perhaps the
USB hub? It seems very strange that over several years I have never had to "re-install"
the HF+ on the same computer. I can replace the hub or cable if needed but the radio
would have to go back for repair.
...

USB Connectivity and Windows 10

HERB KEATON N2GEW
 

Greetings:
I have had years of satisfactory operation with the HF+ Receiver and SDR-Console software. I was excited
when the HF+ Discovery came on board and decided to pre-order it. I just got around to installing the
unit on the same system with an alternate radio/definition in the software. 

I have had now two incidence of losing access to the new receiver after several days of
use. I start the software and the radio is simply not there any longer. Checking in Windows 10
under devices, it confirms the device is missing. I then must pull the USB connection and when I reconnect it,
the radio is again available. At least for a day or two and then.....

Trying to diagnose this, do I look first to the radio, the USB cable/connection or perhaps the
USB hub? It seems very strange that over several years I have never had to "re-install"
the HF+ on the same computer. I can replace the hub or cable if needed but the radio
would have to go back for repair.

Ideas would be appreciated.
73'
N2GEW

Re: Weird SpyServer Problem ? #spyserver

Rodrigo Pérez
 

Hi,

Same here with spyserver on raspberry pi 3, raspbian buster and rtf-sdr v3.
Restart spyserver dont solve the problem, I have a crontab to reboot every hour.

Regards




On martes, abr. 07, 2020 at 1:26 a. m., Edward MacDonald <edwardmacdonald74@...> wrote:
I have been successfully running SpyServer on my Win10 64 bit computer with no problems for the past couple of months with ONE EXCEPTION.

Sometimes (seemingly random) the when I connect to the spy server from any device, everything seems to be working properly EXCEPT that the SNR level is always max, the spectrum trace is always pegged and there is no audio of any type. nor does any setting change in the SDR# app make any difference.

Here is what SDR# looks like when this happens...

I have played with the settings in SpyServer, still happens. Nothing has changed on Windows. I have tried to host the server on three different machines, with two different SDR dongles and the same thing happens.  Am I doing something wrong or does anyone have any info on this problem? 

I have also noticed this same problem when connecting to other peoples SpyServers in some cases. So I am assuming it is not just me that has this problem.  

The only thing that seems to correct the problem is a restart of the computer that is hosting the SpyServer (sometimes) OR to remove and re-insert the SDR dongle into a DIFFERENT USB port, however, it still might randomly start doing it again...


Any help would be much appreciated.

Re: Weird SpyServer Problem ? #spyserver

Brian Gregory
 

You're saying disconnecting and reconnecting (from within SDR#) doesn't fix it?
Which type of SDR dongle are you using?

On Tue, 7 Apr 2020 at 06:26, Edward MacDonald <edwardmacdonald74@...> wrote:
I have been successfully running SpyServer on my Win10 64 bit computer with no problems for the past couple of months with ONE EXCEPTION.

Sometimes (seemingly random) the when I connect to the spy server from any device, everything seems to be working properly EXCEPT that the SNR level is always max, the spectrum trace is always pegged and there is no audio of any type. nor does any setting change in the SDR# app make any difference.

Here is what SDR# looks like when this happens...

I have played with the settings in SpyServer, still happens. Nothing has changed on Windows. I have tried to host the server on three different machines, with two different SDR dongles and the same thing happens.  Am I doing something wrong or does anyone have any info on this problem? 

I have also noticed this same problem when connecting to other peoples SpyServers in some cases. So I am assuming it is not just me that has this problem.  

The only thing that seems to correct the problem is a restart of the computer that is hosting the SpyServer (sometimes) OR to remove and re-insert the SDR dongle into a DIFFERENT USB port, however, it still might randomly start doing it again...


Any help would be much appreciated.



Weird SpyServer Problem ? #spyserver

Edward MacDonald
 

I have been successfully running SpyServer on my Win10 64 bit computer with no problems for the past couple of months with ONE EXCEPTION.

Sometimes (seemingly random) the when I connect to the spy server from any device, everything seems to be working properly EXCEPT that the SNR level is always max, the spectrum trace is always pegged and there is no audio of any type. nor does any setting change in the SDR# app make any difference.

Here is what SDR# looks like when this happens...

I have played with the settings in SpyServer, still happens. Nothing has changed on Windows. I have tried to host the server on three different machines, with two different SDR dongles and the same thing happens.  Am I doing something wrong or does anyone have any info on this problem? 

I have also noticed this same problem when connecting to other peoples SpyServers in some cases. So I am assuming it is not just me that has this problem.  

The only thing that seems to correct the problem is a restart of the computer that is hosting the SpyServer (sometimes) OR to remove and re-insert the SDR dongle into a DIFFERENT USB port, however, it still might randomly start doing it again...


Any help would be much appreciated.

Re: WFM no squelch, why and could it be added?

Bob Dengler
 

I tried routing WFM demod to KG-Tone, & its squelch works OK. The problem is the wide modulation BW of broadcast FM is detected by the noise squelch in KG-Tone, & sometimes it chops off a bit of the audio. I suppose a noise squelch algorithm specifically designed for broadcast FM would work provided the detection band avoids modulation energy present in those signals (19 & 57 kHz, etc.)

Bob NO6B

Re: WFM no squelch, why and could it be added?

jdow
 

Never has worked with WFM. It was not designed for NFM.

{^_^}

On 20200406 06:30:34, Pekka Sorjonen wrote:
Hi Prog,
I am an active FM-dxer in 87.5 - 108MHZ and have been introducing myself SDR# on that band also. As a receiver I have Airspy HF+ DP and Discovery. Everything works like a clockwork. BUT! Why is the squelch not working in WFM. It would be really important to be able to squelch the noise for exemple when trying to catch a station via meteor scatter or just for scanning the band without the noise between stations. Saves your ears a lot.
Any possibility of adding it for future versions.
Pekka Sorjonen

WFM no squelch, why and could it be added?

Pekka Sorjonen
 

Hi Prog,

I am an active FM-dxer in 87.5 - 108MHZ and have been introducing myself SDR# on that band also. As a receiver I have Airspy HF+ DP and Discovery. Everything works like a clockwork. BUT! Why is the squelch not working in WFM. It would be really important to be able to squelch the noise for exemple when trying to catch a station via meteor scatter or just for scanning the band without the noise between stations. Saves your ears a lot.

Any possibility of adding it for future versions.

Pekka Sorjonen

Re: YouLoop Arrival #youloop

prog
 

On Mon, Apr 6, 2020 at 03:44 AM, Mike Jackson wrote:
1.  Are the plastic cases for the phase inverter and balun waterproof?  If I place the antenna outdoors is taping the SMA connectors with amalgamating tape sufficient for wetherproofing?
Yes. I think this should be sufficient.

2.  My radio room is located inside a galvanised iron and aluminium garage with a lead out hole for all antenna cables, so given the short feedline the placement of the antenna inside the radio room would not be ideal, is that a fair assumption?
No antenna will work as intended in these conditions. Better let it live outside.

3.  Given 2 above, what are the penalties for replacing the provided feedline with RG58 of say, 15m length in order to place the loop away from my Faraday cage!?
This should be still OK for the lower bands (< 10MHz). A preamp like the one I proposed in a different thread can help getting a good performance regardless of the length of the cable.

As the greyline approaches here in New Zealand I'm going to be experimenting a great deal!

Thanks for the entertainment during COVID-19 lock-down Youssef :-)
Thank you! I am also having fun with this.

Re: spyserver problem decoding RS41 radiosonde data

Markus Kempf
 

thanks for the feedback to Johann and Aldo Moroni. I have now successfully decoded data. It never worked with the compressed format, I had to set "Use full IQ". The minimum bandwidth to use was 37.5khz. I had tried lower values because the sonde signal has 5Khz bandwidth. Also the volume of the audio signal in RS41Tracker should be not higher than 50%. If I can find the time, I will compare with my new RTL-SDR V3 stick.

Markus

Re: YouLoop Arrival #youloop

doug
 

On 4/5/20 9:43 PM, Mike Jackson wrote:
I'm happy to advise that after a two week journey the postman delivered my YouLoop today!!

I have a couple of questions though and it has to do with placement of the antenna and the feedline.

1.  Are the plastic cases for the phase inverter and balun waterproof?  If I place the antenna outdoors is taping the
SMA connectors with amalgamating tape sufficient for wetherproofing?
2.  My radio room is located inside a galvanised iron and aluminium garage with a lead out hole for all antenna cables,
so given the short feedline the placement of the antenna inside the radio room would not be ideal, is that a fair
assumption?
3.  Given 2 above, what are the penalties for replacing the provided feedline with RG58 of say, 15m length in order to
place the loop away from my Faraday cage!?

As the greyline approaches here in New Zealand I'm going to be experimenting a great deal!

Thanks for the entertainment during COVID-19 lock-down Youssef :-)
_._,_._,_
I can't address your first question, but the second and third are more to the point>

2. You certainly can't expect to receive much of anything with an antenna inside your "Faraday Cage!" Your feedline loss
depends on the type of feedline and its length, and the frequencies you want to receive. You can look up feedline loss
for common feedlines on the 'net. Usually expressed in db/100 feet at certain frequencies. It scales linearly.
(4dB/100 = 2dB/50, etc.)

3. 50 feet of so of RG58 will probably be OK for frequencies up to 150 MHz unless you're looking for VHF DX. For
anything higher, I would think you would be better off with LMR 240 or even LMR 400, depending on how high you need to
receive. OTOH, if you're looking for DX, you should have a better antenna than a YouLoop. If you're satisfied with the
kind of performance you could get with a YouLoop, you might as well not go any bigger than RG58, or even that much.

I'm a radio amateur, and I tend to think in terms of weak signals, but the simple receivers and small antennas commonly
found in the SDR world, tend to limit you to powerful broadcast stations (both domestic and short wave) and VHF stations
in the public service domain--police and fire departments, weather stations, etc. Be aware that a lot of PD and FD
transmissions nowadays are encrypted digitally, and will make no sense when received. OTH, aircraft radios at both the
ground the air ends are AM in the 110 MHz region. If you're near an airport, this might be interesting.

--doug, WA2SAY

Re: IQ from Sound Card - missing ppm @elektor_sdr_shield #arduino

Siegfried Jackstien
 

.... and now think you have to do the same with a pluto and have also to live with an unknown lnb offset

another reason why i add a trimmable tcxo inside pluto ... much easier to tune as to mess around with software correction

and ... smallest step in the corrction is 1hz in 40 megs ... means 60hz at 13cm ...

with the trimmer i can finetune it to be zero beat ... with the software correction you may be off 30 hz in one seting and 30 hz in the other with the next setting ...

......

what i see here is when i use vac as in and out ... a slowly increase of the delay in the soft (butffertime is creeping up to over 200ms) ... but when i use only vac as input (say from a digital modes soft) ... but set output to the speakers ... then the buffertime stays low ... at 30 to 50 ms

simon said that he adds a bigger buffer when vac is used ... but why is it creeping up?!? and why not with speaker out??

in both cases i use the pluto in fullduplex ... only change output line

greetz sigi dg9bfc

Am 05.04.2020 um 21:47 schrieb jdow:

There is a good reason for this. There are two oscillators that need correction. And the correction process is a nasty dance when you do not know what has to be corrected for the error you are seeing. At the very least you need two widely separated frequencies that are very well known, say 5 MHz and 20 MHz at appropriate times of day they are more or less stable without ionospheric variations. The sound card error is the same for both frequencies if you leave WWV signal at the same spot on the display. So adjust the Shield's frequency with any trimmers it may have so that both frequencies show the same offset. Then adjust the sound card, somehow, to remove its error setting the offset to zero.

It's exhausting (and annoying) just to describe it let alone do it.
{^_^}

On 20200405 08:15:34, Jean-Marc Paratte wrote:
On Sun, Apr 5, 2020 at 03:59 PM, prog wrote:

    You can access this with the "SoftRock" source.

True, but "IQ from Sound Card" deactivates the option.

YouLoop Arrival #youloop

Mike Jackson <mde.jackson@...>
 

I'm happy to advise that after a two week journey the postman delivered my YouLoop today!!

I have a couple of questions though and it has to do with placement of the antenna and the feedline.

1.  Are the plastic cases for the phase inverter and balun waterproof?  If I place the antenna outdoors is taping the SMA connectors with amalgamating tape sufficient for wetherproofing?
2.  My radio room is located inside a galvanised iron and aluminium garage with a lead out hole for all antenna cables, so given the short feedline the placement of the antenna inside the radio room would not be ideal, is that a fair assumption?
3.  Given 2 above, what are the penalties for replacing the provided feedline with RG58 of say, 15m length in order to place the loop away from my Faraday cage!?

As the greyline approaches here in New Zealand I'm going to be experimenting a great deal!

Thanks for the entertainment during COVID-19 lock-down Youssef :-)
 

Re: IQ from Sound Card - missing ppm @elektor_sdr_shield #arduino

jdow
 

There is a good reason for this. There are two oscillators that need correction. And the correction process is a nasty dance when you do not know what has to be corrected for the error you are seeing. At the very least you need two widely separated frequencies that are very well known, say 5 MHz and 20 MHz at appropriate times of day they are more or less stable without ionospheric variations. The sound card error is the same for both frequencies if you leave WWV signal at the same spot on the display. So adjust the Shield's frequency with any trimmers it may have so that both frequencies show the same offset. Then adjust the sound card, somehow, to remove its error setting the offset to zero.

It's exhausting (and annoying) just to describe it let alone do it.
{^_^}

On 20200405 08:15:34, Jean-Marc Paratte wrote:
On Sun, Apr 5, 2020 at 03:59 PM, prog wrote:
You can access this with the "SoftRock" source.
True, but "IQ from Sound Card" deactivates the option.

Re: youloop availability to Australia

agene
 


Yes, I have bought a couple of items from them, they are shipped direct from the maker in China. So I would imagine there is no problem in ordering the antenna from them.

Regards, Mike Simpson
South Penrith, NSW, Australia



Re: IQ from Sound Card - missing ppm @elektor_sdr_shield #arduino

Jean-Marc Paratte
 

On Sun, Apr 5, 2020 at 08:23 PM, prog wrote:
Just use that source and set the center frequency manually. It's just a sound card source.
OK. I've tried and found DCF77 at " various frequencies " probably because missing hardware.
The IF spectrum is same with the same misalignment.
If I apply a shift of 1Hz, the IF spectrum is shifted 1 Hz to the right.

Re: IQ from Sound Card - missing ppm @elektor_sdr_shield #arduino

prog
 

On Sun, Apr 5, 2020 at 09:21 PM, Jean-Marc Paratte wrote:
No, I don't have the necessary hw.
Just use that source and set the center frequency manually. It's just a sound card source.

Re: IQ from Sound Card - missing ppm @elektor_sdr_shield #arduino

Jean-Marc Paratte
 

On Sun, Apr 5, 2020 at 04:38 PM, prog wrote:
Did you try SoftRock?
No, I don't have the necessary hw.