Date   
Re: Crazy QRM

Jim Andrews
 

Very likely to be either

- Broadband, radiated from your phoneline

- Powerline adapters radiating from the mains cabling

 

If it is either of these, sadly not a lot you can do about it

 

 

 

Jim

 

 

From: airspy@groups.io <airspy@groups.io> On Behalf Of Annunaki
Sent: 08 April 2020 10:14
To: airspy@groups.io
Subject: [airspy] Crazy QRM

 

Hi guys so for the first time I decided to hook up one of my R2's to have a peek at the 10/11m spectrum after suffering horrid QRM ever since I moved into the POS house and to my horror this is what I was presented with (see huge image...).


I started to see if in-fact some of my household electronics were the cause so I turned everything off (apart from the machine that was running the Airspy) which yielded no change, So then I put the Chicken Box in the car on a mag mount and turned off the machine running the R2 which also changed nothing as on the Chicken Box's meter it was a solid +9 of QRM.

 

The QRM starts around 20MHz and ends around the 40Mhz mark which is a crazy amount of BW so basically rendering my usage of 10, 12 and 15 meters operation useless, Can anybody tell from the screenshot what this QRM could be? As you can see it most prevalent in the C.B band around 26.500.

 

TIA

 

Stuart - M6UFR

Re: Crazy QRM

Brian Gregory
 

Some of the worst things, in no particular order, are Plasma TVs, DSL, and power-line networking (especially older types).

Are you perhaps near a DSL roadside cabinet?

Brian Gregory.
bdgregory@...
www.Brian-Gregory.me.uk
(Home)
On 08/04/2020 10:14, Annunaki wrote:

Hi guys so for the first time I decided to hook up one of my R2's to have a peek at the 10/11m spectrum after suffering horrid QRM ever since I moved into the POS house and to my horror this is what I was presented with (see huge image...).


I started to see if in-fact some of my household electronics were the cause so I turned everything off (apart from the machine that was running the Airspy) which yielded no change, So then I put the Chicken Box in the car on a mag mount and turned off the machine running the R2 which also changed nothing as on the Chicken Box's meter it was a solid +9 of QRM.

 

The QRM starts around 20MHz and ends around the 40Mhz mark which is a crazy amount of BW so basically rendering my usage of 10, 12 and 15 meters operation useless, Can anybody tell from the screenshot what this QRM could be? As you can see it most prevalent in the C.B band around 26.500.

 

TIA

 

Stuart - M6UFR

Re: Weird SpyServer Problem ? #spyserver

Edward MacDonald
 

Thanks JDOW I will try that, perhaps it could be someone using the SpyServer and their copy of SDR# not releasing it properly.

I tried using the Task Scheduler in Win10 to reboot the computer and restart SpyServer, but for some reason, there is a permissions issue running the SpyServer this way and it won't read the config file.

I made an app to watch the USB stack and power to make sure it is not Windows 10 screwing with them.



On Wed., Apr. 8, 2020, 12:10 a.m. jdow, <jdow@...> wrote:
Additionally I note that I do not have any active plugins installed.
{^_^}

On 20200407 19:39:15, jdow wrote:
> I am running fully patched Win 10, SDRSharp 1.0.0.1732 continuously 24/7 playing
> a local FM station. The only problem I have is on closing the program fails to
> release the dongle and finish closing. I am using libusb-1.0.dll version
> 1.0.19.10905. If you are using a different libusb-1.0.dll then hunt around for
> the one above and try it.
>
> {^_^}
>
> On 20200407 15:58:45, Edward MacDonald wrote:
>> 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@...
>> <mailto: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@... <mailto: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
 

Yes, I get that too. You can fix it by clicking the 1MHz digit up 2 or 3 MHz and then back down before exiting from SDR#. But shouldn't have to do that :(


On Wed, 8 Apr 2020 at 06:34, jdow <jdow@...> wrote:
I am running fully patched Win 10, SDRSharp 1.0.0.1732 continuously 24/7 playing
a local FM station. The only problem I have is on closing the program fails to
release the dongle and finish closing. I am using libusb-1.0.dll version
1.0.19.10905. If you are using a different libusb-1.0.dll then hunt around for
the one above and try it.

{^_^}

On 20200407 15:58:45, Edward MacDonald wrote:
> 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@...
> <mailto: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@... <mailto: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.
>
>





Crazy QRM

Annunaki
 

Hi guys so for the first time I decided to hook up one of my R2's to have a peek at the 10/11m spectrum after suffering horrid QRM ever since I moved into the POS house and to my horror this is what I was presented with (see huge image...).


I started to see if in-fact some of my household electronics were the cause so I turned everything off (apart from the machine that was running the Airspy) which yielded no change, So then I put the Chicken Box in the car on a mag mount and turned off the machine running the R2 which also changed nothing as on the Chicken Box's meter it was a solid +9 of QRM.

 

The QRM starts around 20MHz and ends around the 40Mhz mark which is a crazy amount of BW so basically rendering my usage of 10, 12 and 15 meters operation useless, Can anybody tell from the screenshot what this QRM could be? As you can see it most prevalent in the C.B band around 26.500.

 

TIA

 

Stuart - M6UFR

Re: Weird SpyServer Problem ? #spyserver

jdow
 

Additionally I note that I do not have any active plugins installed.
{^_^}

On 20200407 19:39:15, jdow wrote:
I am running fully patched Win 10, SDRSharp 1.0.0.1732 continuously 24/7 playing a local FM station. The only problem I have is on closing the program fails to release the dongle and finish closing. I am using libusb-1.0.dll version 1.0.19.10905. If you are using a different libusb-1.0.dll then hunt around for the one above and try it.
{^_^}
On 20200407 15:58:45, Edward MacDonald wrote:
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@... <mailto: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@... <mailto: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

jdow
 

I am running fully patched Win 10, SDRSharp 1.0.0.1732 continuously 24/7 playing a local FM station. The only problem I have is on closing the program fails to release the dongle and finish closing. I am using libusb-1.0.dll version 1.0.19.10905. If you are using a different libusb-1.0.dll then hunt around for the one above and try it.

{^_^}

On 20200407 15:58:45, Edward MacDonald wrote:
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@... <mailto: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@... <mailto: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

Edward MacDonald
 

No, I don't believe that just it being an RTL-SDR dongle is the problem as last night I found to SpyServers on the SpyServer browser which were using AirSpy HF+ which had the same problem. However, today they are working fine.


On Tue, 7 Apr 2020 at 16:14, Brian Gregory <bdgregory@...> wrote:
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.



--

NooElec R820T SDR & DVB-T #hardware #plugins #plugin #RTL #sdrsharp

David Vine
 

Yesterday I resurrected my SDR dongle and installed SDR# software today.

What is the best plug-in for inputing several frequencies and rapidly scanning them within SDR#?

Thanks,

DV

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.