Date   

How to switch off spyserver "calling home" #spyserver

Frank - DB1FW
 

Hello,
I have a spyserver running. One of the main reasons for choosing and purchasing an AirSpyHF+ was the spyserver functions. 
Now I have a spyserver running and I had to find out, that it's sending data to the host airspy.com.

I don't want my machines to send unknown data to a server on the internet without asking me. 

Could not find an option to switch off this "call home" feature. 

I would like to be able to access my AirSpy via the internet - but surly without having to let the world know that my spyserver is active. Regardless if the world can acces my network - I still would like to be able to choose if I want to announce it to the world that my server is running or not.

I'm sure there is an option in the configuration to switch this off. I'm sure I just didn't find it. 

Any ideas what I could do ? 

 

Thanks 

Frank


Re: R2

Airspy US
 

You ARE pressing the PLAY button (triangle at the top) when trying to receive, right?

---------
Airspy.US
Your USA source for quality SDR products!
www.Airspy.US

NOTE! This email address is not routinely monitored.
If you have an issue, please contact us at airspy@airspy.us

On 1/25/2019 7:18 PM, Paul Ormandy wrote:
Hi all,

My new Airspy R2 arrived today from Itead in China. Installed SDR# and plugged the Airspy in. Windows did not say it was looking for drivers when first plugged in however the device is visible and the calibrate.exe works so guess it doesn't need manual driver instal??

However, I cannot get a peep out of it thru SDR#. I am testing it with a metre of bare wire but it won't detect even local FMers for some reason. Print of screen below.

Would appreciate any suggestions.

Cheers,

Paul

--
Paul Ormandy
ZL4TT

<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>


R2

Paul Ormandy
 

Hi all,

My new Airspy R2 arrived today from Itead in China. Installed SDR# and plugged the Airspy in. Windows did not say it was looking for drivers when first plugged in however the device is visible and the calibrate.exe works so guess it doesn't need manual driver instal??

However, I cannot get a peep out of it thru SDR#. I am testing it with a metre of bare wire but it won't detect even local FMers for some reason. Print of screen below.

Would appreciate any suggestions.

Cheers,

Paul

-- 
Paul Ormandy
ZL4TT


Re: Weird "signal diagnostics" readings

Patrick
 

<< The AirSpy HF+ *CANNOT* be used for a signal level  measurement device (...) It is excellent for relative levels between two signals. But the AGC wipes out any absolute level calibration. >>

Sorry, I thought the 'signal diagnostics' would allow this. I'm just a basic stupid listener.
I will use the 2nd setup for this purpose.

Thanks Jdow.


Le ven. 25 janv. 2019 à 16:37, jdow <jdow@...> a écrit :
What part of an AGC system normalizing the signal levels into the A/D converter
do you not understand? The AirSpy HF+ *CANNOT* be used for a signal level
measurement device, period, end of statement. It is excellent for relative
levels between two signals. But the AGC wipes out any absolute level calibration.

{^_^}

On 20190124 16:19:48, Patrick wrote:
> << There is probably a strong signal that is within the RF bandwidth of one of
> the devices and not the other >>
> This means this strong signal would affect the HF+ randomly on a certain day of
> the week, but never the ELAD / RSP (same signal level within 1 dB for 3 years) ?
> Note : SDR# CW filter is set to 30 Hz BW. Similar BW used with Uno.
>
>
> To make it simple :
>
> Day 1 - Both SDRs just turned on :
> HF+ / SDR# : beacon -64 dB / noise -118 dB
> RSPduo / SDRuno : beacon -69 dBm / noise -125
>
> Day 1 - 1h later :
> HF+ / SDR beacon -50 dB / noise - 104 dB
> RSPduo / SDRuno : beacon -69 dBm / noise -125
>
> Day 2 - No change in 3h of listening (1 dB max)
> HF+ / SDR# : beacon -44 dB / noise -95 dB
> RSPduo / SDRuno : beacon -69 dBm / noise -122
>
> It clearly appears that the values remain very steady in the 2nd case, and
> fluctuate by abt 20 dB running the HF+ / SDR# combo (I don"t mind what the
> values are, only the variation matters here).
>
> Anyway, it was just out of curiosity ! I'm more than happy with the HF+ for LF
> beacons DXing
>
>
>
> Le ven. 25 janv. 2019 à 00:24, jdow <jdow@...
> <mailto:jdow@...>> a écrit :
>
>     That is a very good possibility. The AirSpy HF+ does not deliver anything
>     approaching a calibrated constant level output. It almost always* runs an AGC
>     system to optimize the input level to the A/D converter. Other systems do not.
>     So they will behave quite differently and not have levels that can be
>     related to
>     each other.
>
>     {^_^}
>     * I understand there is a way to disable the AGC with a significant
>     reduction in
>     performance. I don't know that SDRSharp implements this as it's an off label
>     use
>     for the HF+.
>
>     On 20190124 14:19:18, Joe M. wrote:
>      > Why do you think the AGC should be identical between the two?
>      >
>      > I can see how within the same company it might be the same, but odds
>      > of two different companies using the same values is not likely.
>      >
>      > What you describe really sounds like varying interference
>      > signal levels that are triggering/affecting the AGC.
>      >
>      > Joe M.
>      >
>      > On 1/24/2019 3:30 PM, Patrick wrote:
>      >> Hi buddies !
>      >>
>      >> FYI :
>      >>
>      >> << I will run another test when the snowfalls stop >>
>      >> Weather conditions are getting better ! I just started my DX session
>      >> checking - as usual - my local LF beacon.
>      >>
>      >> Tonight, though the combo SDRuno / RSPduo still shows exactly the same
>      >> value, the "Signal Disgnostics" tool reads 5 dB more than the last time
>      >> after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB
>      >> more today, that's 20 dB discrepancy).
>      >>
>      >> I really don't understand these variations and why one reading remains
>      >> very steady while the other one fluctuates that way, considering both
>      >> setup are supposed to be very accurate. When one combo gives 5 dB more,
>      >> the other one should also give 5 dB more, whatever the value is, right ?
>      >>
>      >> Have a nice evening,
>      >> Pat
>      >
>      >
>      >
>      >
>
>
>
>




Re: Weird "signal diagnostics" readings

jdow
 

What part of an AGC system normalizing the signal levels into the A/D converter do you not understand? The AirSpy HF+ *CANNOT* be used for a signal level measurement device, period, end of statement. It is excellent for relative levels between two signals. But the AGC wipes out any absolute level calibration.

{^_^}

On 20190124 16:19:48, Patrick wrote:
<< There is probably a strong signal that is within the RF bandwidth of one of the devices and not the other >>
This means this strong signal would affect the HF+ randomly on a certain day of the week, but never the ELAD / RSP (same signal level within 1 dB for 3 years) ?
Note : SDR# CW filter is set to 30 Hz BW. Similar BW used with Uno.
To make it simple :
Day 1 - Both SDRs just turned on :
HF+ / SDR# : beacon -64 dB / noise -118 dB
RSPduo / SDRuno : beacon -69 dBm / noise -125
Day 1 - 1h later :
HF+ / SDR beacon -50 dB / noise - 104 dB
RSPduo / SDRuno : beacon -69 dBm / noise -125
Day 2 - No change in 3h of listening (1 dB max)
HF+ / SDR# : beacon -44 dB / noise -95 dB
RSPduo / SDRuno : beacon -69 dBm / noise -122
It clearly appears that the values remain very steady in the 2nd case, and fluctuate by abt 20 dB running the HF+ / SDR# combo (I don"t mind what the values are, only the variation matters here).
Anyway, it was just out of curiosity ! I'm more than happy with the HF+ for LF beacons DXing
Le ven. 25 janv. 2019 à 00:24, jdow <jdow@earthlink.net <mailto:jdow@earthlink.net>> a écrit :
That is a very good possibility. The AirSpy HF+ does not deliver anything
approaching a calibrated constant level output. It almost always* runs an AGC
system to optimize the input level to the A/D converter. Other systems do not.
So they will behave quite differently and not have levels that can be
related to
each other.
{^_^}
* I understand there is a way to disable the AGC with a significant
reduction in
performance. I don't know that SDRSharp implements this as it's an off label
use
for the HF+.
On 20190124 14:19:18, Joe M. wrote:
> Why do you think the AGC should be identical between the two?
>
> I can see how within the same company it might be the same, but odds
> of two different companies using the same values is not likely.
>
> What you describe really sounds like varying interference
> signal levels that are triggering/affecting the AGC.
>
> Joe M.
>
> On 1/24/2019 3:30 PM, Patrick wrote:
>> Hi buddies !
>>
>> FYI :
>>
>> << I will run another test when the snowfalls stop >>
>> Weather conditions are getting better ! I just started my DX session
>> checking - as usual - my local LF beacon.
>>
>> Tonight, though the combo SDRuno / RSPduo still shows exactly the same
>> value, the "Signal Disgnostics" tool reads 5 dB more than the last time
>> after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB
>> more today, that's 20 dB discrepancy).
>>
>> I really don't understand these variations and why one reading remains
>> very steady while the other one fluctuates that way, considering both
>> setup are supposed to be very accurate. When one combo gives 5 dB more,
>> the other one should also give 5 dB more, whatever the value is, right ?
>>
>> Have a nice evening,
>> Pat
>
>
>
>


Re: AIrSpy HF+ questions

jdow
 

What is your antenna? The noise figure with the spyverter in place on HF might not be an issue. It will be high enough that an efficient antenna will produce enough noise to overwhelm the noise figure only below about 15 MHz to 20 MHz. It likely will be something on the order of 13 dB to 15 dB. Take the spyverter out of the picture for VHF. There the noise figure is on the order of 5 dB. A modest preamplifier may be needed. Don't over do it lest you wipe out the system dynamic range.

{^_^}

On 20190124 16:08:51, Marcus D. Leech wrote:
I'm looking at options for doing repeatable galactic-background noise measurements in the region of about 25MHz to 45MHz.
Bandwidths will be modest (25kHz to perhaps 500kHz).
Our bandwidths may be contaminated with RFI, hopefully of a not-overwhelming level, and not at an overwhelming density.  We have some
  algorithms for excising the RF artifacts before calculating a noise level.
My thought-experiment setup is with two channels consisting of:
SpyVerter----->AirSpy-HF+      (because we're going to want to look above 31MHz).
I have some questions:
  o What is the expected noise figure of such a setup, considering that the SpyVerter will be "out front".
  o can you have more than one AirSpy-HF+ on a system, and is there gr-osmosdr support?
  o Will the presence of "modest" RFI within our observing band tend to trigger AGC?


Re: Weird "signal diagnostics" readings

Patrick
 

<< There is probably a strong signal that is within the RF bandwidth of one of the devices and not the other >>
This means this strong signal would affect the HF+ randomly on a certain day of the week, but never the ELAD / RSP (same signal level within 1 dB for 3 years) ?
Note : SDR# CW filter is set to 30 Hz BW. Similar BW used with Uno.


To make it simple :

Day 1 - Both SDRs just turned on :
HF+ / SDR# : beacon -64 dB / noise -118 dB
RSPduo / SDRuno : beacon -69 dBm / noise -125

Day 1 - 1h later :
HF+ / SDR beacon -50 dB / noise - 104 dB
RSPduo / SDRuno : beacon -69 dBm / noise -125

Day 2 - No change in 3h of listening (1 dB max)
HF+ / SDR# : beacon -44 dB / noise -95 dB
RSPduo / SDRuno : beacon -69 dBm / noise -122

It clearly appears that the values remain very steady in the 2nd case, and fluctuate by abt 20 dB running the HF+ / SDR# combo (I don"t mind what the values are, only the variation matters here).

Anyway, it was just out of curiosity ! I'm more than happy with the HF+ for LF beacons DXing



Le ven. 25 janv. 2019 à 00:24, jdow <jdow@...> a écrit :
That is a very good possibility. The AirSpy HF+ does not deliver anything
approaching a calibrated constant level output. It almost always* runs an AGC
system to optimize the input level to the A/D converter. Other systems do not.
So they will behave quite differently and not have levels that can be related to
each other.

{^_^}
* I understand there is a way to disable the AGC with a significant reduction in
performance. I don't know that SDRSharp implements this as it's an off label use
for the HF+.

On 20190124 14:19:18, Joe M. wrote:
> Why do you think the AGC should be identical between the two?
>
> I can see how within the same company it might be the same, but odds
> of two different companies using the same values is not likely.
>
> What you describe really sounds like varying interference
> signal levels that are triggering/affecting the AGC.
>
> Joe M.
>
> On 1/24/2019 3:30 PM, Patrick wrote:
>> Hi buddies !
>>
>> FYI :
>>
>> << I will run another test when the snowfalls stop >>
>> Weather conditions are getting better ! I just started my DX session
>> checking - as usual - my local LF beacon.
>>
>> Tonight, though the combo SDRuno / RSPduo still shows exactly the same
>> value, the "Signal Disgnostics" tool reads 5 dB more than the last time
>> after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB
>> more today, that's 20 dB discrepancy).
>>
>> I really don't understand these variations and why one reading remains
>> very steady while the other one fluctuates that way, considering both
>> setup are supposed to be very accurate. When one combo gives 5 dB more,
>> the other one should also give 5 dB more, whatever the value is, right ?
>>
>> Have a nice evening,
>> Pat
>
>
>
>




AIrSpy HF+ questions

Marcus D. Leech
 

I'm looking at options for doing repeatable galactic-background noise measurements in the region of about 25MHz to 45MHz.

Bandwidths will be modest (25kHz to perhaps 500kHz).

Our bandwidths may be contaminated with RFI, hopefully of a not-overwhelming level, and not at an overwhelming density. We have some
algorithms for excising the RF artifacts before calculating a noise level.

My thought-experiment setup is with two channels consisting of:

SpyVerter----->AirSpy-HF+ (because we're going to want to look above 31MHz).

I have some questions:

o What is the expected noise figure of such a setup, considering that the SpyVerter will be "out front".
o can you have more than one AirSpy-HF+ on a system, and is there gr-osmosdr support?
o Will the presence of "modest" RFI within our observing band tend to trigger AGC?


Re: Weird "signal diagnostics" readings

jdow
 

That is a very good possibility. The AirSpy HF+ does not deliver anything approaching a calibrated constant level output. It almost always* runs an AGC system to optimize the input level to the A/D converter. Other systems do not. So they will behave quite differently and not have levels that can be related to each other.

{^_^}
* I understand there is a way to disable the AGC with a significant reduction in performance. I don't know that SDRSharp implements this as it's an off label use for the HF+.

On 20190124 14:19:18, Joe M. wrote:
Why do you think the AGC should be identical between the two?
I can see how within the same company it might be the same, but odds
of two different companies using the same values is not likely.
What you describe really sounds like varying interference
signal levels that are triggering/affecting the AGC.
Joe M.
On 1/24/2019 3:30 PM, Patrick wrote:
Hi buddies !

FYI :

<< I will run another test when the snowfalls stop >>
Weather conditions are getting better ! I just started my DX session
checking - as usual - my local LF beacon.

Tonight, though the combo SDRuno / RSPduo still shows exactly the same
value, the "Signal Disgnostics" tool reads 5 dB more than the last time
after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB
more today, that's 20 dB discrepancy).

I really don't understand these variations and why one reading remains
very steady while the other one fluctuates that way, considering both
setup are supposed to be very accurate. When one combo gives 5 dB more,
the other one should also give 5 dB more, whatever the value is, right ?

Have a nice evening,
Pat


Re: Weird "signal diagnostics" readings

jdow
 

They have different built in analog filtering characteristics. Sp you are still comparing pickles and bandanas. There is probably a strong signal that is within the RF bandwidth of one of the devices and not the other.
{^_^}

On 20190124 12:30:36, Patrick wrote:
Hi buddies !
FYI :
<< I will run another test when the snowfalls stop >>
Weather conditions are getting better ! I just started my DX session checking - as usual - my local LF beacon.
Tonight, though the combo SDRuno / RSPduo still shows exactly the same value, the "Signal Disgnostics" tool reads 5 dB more than the last time after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB more today, that's 20 dB discrepancy).
I really don't understand these variations and why one reading remains very steady while the other one fluctuates that way, considering both setup are supposed to be very accurate. When one combo gives 5 dB more, the other one should also give 5 dB more, whatever the value is, right ?
Have a nice evening,
Pat
Le mer. 23 janv. 2019 à 18:57, Kenneth Sejkora via Groups.Io <quickhatch44=yahoo.com@groups.io <mailto:yahoo.com@groups.io>> a écrit :
I can attest to this 'phenomenon'.  I use an RTL-SDR V3 dongle with SDRSharp
in direct sampling mode to listen to 20-meters and other frequencies in the
HF band.  I live between Boston and Providence, so there are plenty of AM
transmitters in the vicinity.  After about 18:00 local time, and up until
about 07:00 local, the spectrum displays some minor phantom signals about
every 60 kHz apart.  However, during daylight hours, there are strong
signals every 10.0 kHz apart on exactly 10-kHz multiples... 14,100.0,
14,110.0, 14,120,0, etc., several of which exhibit audible audio
intermodulation with bandwidths up to 4 khz wide, like listening to a AM
broadcast..  Same thing if I drop down to 75-meters... 3,800.0, 3810.0,
3820.0, etc.  No, I do not have any kind of AM broadcast high-pass or
band-stop filter installed.  But once it starts getting dark, somewhere
between about 17:30 and 18:30 local, those 10.0-kHz interval signals
disappear.  I suspect it's a combination of both higher daytime power and
different antenna patterns, as almost all of the AM broadcasters in the area
exercise both practices of diurnal/nocturnal power and antenna patterns changes.
I did consider the possibility of temperature-related phenomena, such as
joints/junctions in wires, fences, rain gutters, etc. being heated up by the
sun and forming a pseudo-diode junction that radiated RF, but with recent
single-digit daytime temps, the pattern looks the same as it does on warmer
days.
Of course, your mileage may vary depending on the number of AM BCB stations,
transmit power, frequencies, antenna patterns, etc. in your local vicinity. I've been considering buying and trying an AM band-stop filter to see if it
helps.  I'd welcome any experiences, successes, or failures anyone has had
with such band-stop filters.
Good luck!
Ken, WBØOCV Norton, MA USA
41.959546N, 71.163996W  FN41kx
On Wednesday, January 23, 2019, 08:05:28 AM EST, jdow <jdow@earthlink.net
<mailto:jdow@earthlink.net>> wrote:
Dumb question - what time of day was this and what time of day do you usually
use it? At least in the states most broadcast stations run with different day
and night power and antenna patterns. And noise and signals do show a daily
pattern even on LF, at least around here in the past.
{o.o}


Re: Weird "signal diagnostics" readings

Joe M.
 

Why do you think the AGC should be identical between the two?

I can see how within the same company it might be the same, but odds
of two different companies using the same values is not likely.

What you describe really sounds like varying interference
signal levels that are triggering/affecting the AGC.

Joe M.

On 1/24/2019 3:30 PM, Patrick wrote:
Hi buddies !

FYI :

<< I will run another test when the snowfalls stop >>
Weather conditions are getting better ! I just started my DX session
checking - as usual - my local LF beacon.

Tonight, though the combo SDRuno / RSPduo still shows exactly the same
value, the "Signal Disgnostics" tool reads 5 dB more than the last time
after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB
more today, that's 20 dB discrepancy).

I really don't understand these variations and why one reading remains
very steady while the other one fluctuates that way, considering both
setup are supposed to be very accurate. When one combo gives 5 dB more,
the other one should also give 5 dB more, whatever the value is, right ?

Have a nice evening,
Pat


Re: Weird "signal diagnostics" readings

Patrick
 

Hi buddies !

FYI :

<< I will run another test when the snowfalls stop >>
Weather conditions are getting better ! I just started my DX session checking - as usual - my local LF beacon.

Tonight, though the combo SDRuno / RSPduo still shows exactly the same value, the "Signal Disgnostics" tool reads 5 dB more than the last time after 1 hour ! (15 dB less last time when I turned on the radio, 5 dB more today, that's 20 dB discrepancy).

I really don't understand these variations and why one reading remains very steady while the other one fluctuates that way, considering both setup are supposed to be very accurate. When one combo gives 5 dB more, the other one should also give 5 dB more, whatever the value is, right ?

Have a nice evening,
Pat




Le mer. 23 janv. 2019 à 18:57, Kenneth Sejkora via Groups.Io <quickhatch44=yahoo.com@groups.io> a écrit :
I can attest to this 'phenomenon'.  I use an RTL-SDR V3 dongle with SDRSharp in direct sampling mode to listen to 20-meters and other frequencies in the HF band.  I live between Boston and Providence, so there are plenty of AM transmitters in the vicinity.  After about 18:00 local time, and up until about 07:00 local, the spectrum displays some minor phantom signals about every 60 kHz apart.  However, during daylight hours, there are strong signals every 10.0 kHz apart on exactly 10-kHz multiples... 14,100.0, 14,110.0, 14,120,0, etc., several of which exhibit audible audio intermodulation with bandwidths up to 4 khz wide, like listening to a AM broadcast..  Same thing if I drop down to 75-meters... 3,800.0, 3810.0, 3820.0, etc.  No, I do not have any kind of AM broadcast high-pass or band-stop filter installed.  But once it starts getting dark, somewhere between about 17:30 and 18:30 local, those 10.0-kHz interval signals disappear.  I suspect it's a combination of both higher daytime power and different antenna patterns, as almost all of the AM broadcasters in the area exercise both practices of diurnal/nocturnal power and antenna patterns changes.

I did consider the possibility of temperature-related phenomena, such as joints/junctions in wires, fences, rain gutters, etc. being heated up by the sun and forming a pseudo-diode junction that radiated RF, but with recent single-digit daytime temps, the pattern looks the same as it does on warmer days.

Of course, your mileage may vary depending on the number of AM BCB stations, transmit power, frequencies, antenna patterns, etc. in your local vicinity.  I've been considering buying and trying an AM band-stop filter to see if it helps.  I'd welcome any experiences, successes, or failures anyone has had with such band-stop filters.

Good luck!

Ken, WBØOCV Norton, MA USA
41.959546N, 71.163996W  FN41kx


On Wednesday, January 23, 2019, 08:05:28 AM EST, jdow <jdow@...> wrote:


Dumb question - what time of day was this and what time of day do you usually
use it? At least in the states most broadcast stations run with different day
and night power and antenna patterns. And noise and signals do show a daily
pattern even on LF, at least around here in the past.

{o.o}



Re: Airspy mini scanning software #sdrsharp #software

Mike M <Mike@...>
 

Hello
Thank you for the information it's much appreciated :-)
 
73s
 
Mike 2E0UMF


Re: Multiple SDR# instances running concurrently

EB4APL
 

Hi Joanna,

This is approximately what I do, but something like profiles (or support for multiple configuration files, like in the Spyserver) would make it very easy, only one program folder to maintain. Just an idea that could be added to the "to do" list.

73 de Ignacio, EB4APL




El 24/01/2019 a las 0:09, jdow escribió:
Setup}
    Load in SDRSharp to its own folder.

    Right click on SDRSharp.exe and select Create shortcut.

    Copy the shortcut to your 12 folders.

    For each folder: (Painful part)

        Right click and select properties.

        Edit the "Start in:" to show the folder name containing the shortcut.

    DONE

Update:
    Load in the new SDRSharp,

    DONE

Now you PROBABLY could create an intermediate folder "...\SDRSharp". Load each version in to its own folder, "...\SDRSharp1670". Create the shortcut. Copy the shortcut for the version you want to run into "...\SDRSharp". Then you could check earlier versions when a new version shows some peculiar behavior.

{^_^}

On 20190123 07:37:56, EB4APL wrote:
Hi,

I currently run several instances of SDR# and I have multiple copies of
the program folder which only differs in the configuration files, which
are tailored for different receivers.

While I think that I did my homework, I didn't found a trick for using
different profiles and only a program folder, such the one used with
Spyserver. While I tried the same schema, it did not work. Is it
possible to do it now or maybe something planned for the future?. This
way updating the program only in one folder is much better than doing it
in more than my current 12 copies.

Best regards,

Ignacio, EB4APL



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Re: Airspy mini scanning software #sdrsharp #software

EB4APL
 

Frequency Manager and ScannerSuite by Jeff Knapp is a very good solution. It is a plugin for SDR# that has a database and a scanner that can scan by frequency range or by groups of frequencies stored in the database. It is referred in the download section of the SDR# site. It can be downloaded from here: http://www.freqmgrsuite.com/

73 de Ignacio, EB4APL


El 23/01/2019 a las 18:02, Mike M escribió:
Hello
has anybody found suitable software for scanning frequencies or a list of channels?

Here is a little information about me :-)

https://siliconhell.com/paralysed-using-an-amateur-radio
Many Thanks

Mike
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Re: Multiple SDR# instances running concurrently

jdow
 

On 20190123 15:09:07, jdow wrote:
Setup}
    Load in SDRSharp to its own folder.
    Right click on SDRSharp.exe and select Create shortcut.
    Copy the shortcut to your 12 folders.
    For each folder: (Painful part)
Hm, you might need to do this for the DLLs you need, too.


        Right click and select properties.
        Edit the "Start in:" to show the folder name containing the shortcut.
    DONE
Update:
    Load in the new SDRSharp,
    DONE
Now you PROBABLY could create an intermediate folder "...\SDRSharp". Load each version in to its own folder, "...\SDRSharp1670". Create the shortcut. Copy the shortcut for the version you want to run into "...\SDRSharp". Then you could check earlier versions when a new version shows some peculiar behavior.
{^_^}
It would be easier if Youssef and crew taught SDRSharp to read the commandline to get the name of the config file to be used.

{o.o}


Re: Weird "signal diagnostics" readings

jdow
 

The filters are not going to hurt nearly as much as they help.
{o.o}

On 20190123 08:03:30, Kenneth Sejkora via Groups.Io wrote:
I can attest to this 'phenomenon'.  I use an RTL-SDR V3 dongle with SDRSharp in direct sampling mode to listen to 20-meters and other frequencies in the HF band.  I live between Boston and Providence, so there are plenty of AM transmitters in the vicinity.  After about 18:00 local time, and up until about 07:00 local, the spectrum displays some minor phantom signals about every 60 kHz apart.  However, during daylight hours, there are strong signals every 10.0 kHz apart on exactly 10-kHz multiples... 14,100.0, 14,110.0, 14,120,0, etc., several of which exhibit audible audio intermodulation with bandwidths up to 4 khz wide, like listening to a AM broadcast..  Same thing if I drop down to 75-meters... 3,800.0, 3810.0, 3820.0, etc.  No, I do not have any kind of AM broadcast high-pass or band-stop filter installed.  But once it starts getting dark, somewhere between about 17:30 and 18:30 local, those 10.0-kHz interval signals disappear.  I suspect it's a combination of both higher daytime power and different antenna patterns, as almost all of the AM broadcasters in the area exercise both practices of diurnal/nocturnal power and antenna patterns changes.
I did consider the possibility of temperature-related phenomena, such as joints/junctions in wires, fences, rain gutters, etc. being heated up by the sun and forming a pseudo-diode junction that radiated RF, but with recent single-digit daytime temps, the pattern looks the same as it does on warmer days.
Of course, your mileage may vary depending on the number of AM BCB stations, transmit power, frequencies, antenna patterns, etc. in your local vicinity. I've been considering buying and trying an AM band-stop filter to see if it helps.  I'd welcome any experiences, successes, or failures anyone has had with such band-stop filters.
Good luck!
Ken, WBØOCV Norton, MA USA
41.959546N, 71.163996W  FN41kx
On Wednesday, January 23, 2019, 08:05:28 AM EST, jdow <jdow@earthlink.net> wrote:
Dumb question - what time of day was this and what time of day do you usually
use it? At least in the states most broadcast stations run with different day
and night power and antenna patterns. And noise and signals do show a daily
pattern even on LF, at least around here in the past.
{o.o}


Re: Multiple SDR# instances running concurrently

jdow
 

Setup}
Load in SDRSharp to its own folder.

Right click on SDRSharp.exe and select Create shortcut.

Copy the shortcut to your 12 folders.

For each folder: (Painful part)

Right click and select properties.

Edit the "Start in:" to show the folder name containing the shortcut.

DONE

Update:
Load in the new SDRSharp,

DONE

Now you PROBABLY could create an intermediate folder "...\SDRSharp". Load each version in to its own folder, "...\SDRSharp1670". Create the shortcut. Copy the shortcut for the version you want to run into "...\SDRSharp". Then you could check earlier versions when a new version shows some peculiar behavior.

{^_^}

On 20190123 07:37:56, EB4APL wrote:
Hi,
I currently run several instances of SDR# and I have multiple copies of
the program folder which only differs in the configuration files, which
are tailored for different receivers.
While I think that I did my homework, I didn't found a trick for using
different profiles and only a program folder, such the one used with
Spyserver. While I tried the same schema, it did not work. Is it
possible to do it now or maybe something planned for the future?. This
way updating the program only in one folder is much better than doing it
in more than my current 12 copies.
Best regards,
Ignacio, EB4APL
---
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Re: Weird "signal diagnostics" readings

jdow
 

Hypothetically speaking you could have made a settings change while operating the last time that was not reinitialized when the program started the next time. I'd be surprised. One thing to do in situations like that is to shut down the program, power cycle the dongle, and restart the program to see if anything changes. At any rate learning how to make this happen repeatedly would allow Youssef and crew to effect any SW changes needed or isolate any HW problem that might exist.

{^_^}

On 20190123 07:29:34, Patrick wrote:
Hi !
Thanks for the replies and comments.
<< In any case, you can trust what the signal diagnostics plugin says it's not "just for display >>
That's the reason why I was so surprised with the reading ! I know this tool is very reliable and I often use it.
<< Lower ambient noise? Some neighbor is on vacation or changed his noisy TV? >>
RSPduo / SDRuno should have also shown lower values in such a case, but they were the usual ones, as specified in my first post (signal strength for this beacon has been the same, within a dB, for 3 years, using this antenna !)
<< IF noise reduction or another plugin is enabled? >>
Same parameters / settings I always use. Of course, I checked the HF AGC, HF ATT all was OK.
The weird thing is that the values got back to normal progressively after about 1h, for undetermined reason, without modifying a single parameter.
<< what time of day was this and what time of day do you usually use it? At least in the states most broadcast stations run with different day  and night power and antenna patterns >>
It was in the evening, as usual. This LF beacon is about 20 km from home and it strength level is very stable. That's why I use it to ensule my setup is OK (or to compare antennas for example).
<< And noise and signals do show a daily  pattern even on LF>>
As stated above, this would not explain why the SDRuno / RSPduo combo was showing the very usual values (same antenna, same cable, etc)
Nothing too bad of course, but quite surprising (never noticed this before).
I will run another test when the snowfalls stop. If it occurs again, I have to think about running SDR Console to see if it also shows unsual numbers, even if not as accurate as the "signal diagnostics" tool.
Pat
Le mer. 23 janv. 2019 à 12:48, prog <info@sdrsharp.com <mailto:info@sdrsharp.com>> a écrit :
On Wed, Jan 23, 2019 at 12:46 PM, Patrick wrote:
Is there an explanation to this ?
Lower ambient noise? Some neighbor is on vacation or changed his noisy TV?
IF noise reduction or another plugin is enabled?
In any case, you can trust what the signal diagnostics plugin says it's not
"just for display".


Re: Multiple SDR# instances running concurrently

EB4APL
 

Thank you, this was just treated, but my question is not for Spyserver but refers to SDR#


El 23/01/2019 a las 19:02, hmarais@... escribió:
You can pass the spyserver executable a config file to use on the command line. So you'd run multiple copies from the same program folder like so:
spyserver <config_file1>
spyserver <config_file2>
...and so on.

Regards,
Hennie Marais

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