Date   

Re: SkySonde audio setup #airspyr2 #sdrsharp

jdow
 

Windows 10? You may have to fiddle with the privacy settings for your input sort of audio/video devices.
{^_^}

On 20200621 10:04:46, valuedshortwavelistener via groups.io wrote:
On Sat, Jun 20, 2020 at 02:04 AM, Alan G4ZFQ wrote:
And you have enabled Stereo Mix and removed the mute?
I made it the default device for recording and everywhere I look its volume is 100%. Is there a mute setting in SkySonde Server you are referring to?


Re: SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

On Sat, Jun 20, 2020 at 02:04 AM, Alan G4ZFQ wrote:
And you have enabled Stereo Mix and removed the mute?
SkySonde User Guide seems to say that once there is a decodable signal, SkySonde Server will respond depending on packet type. No way to test PC audio setup beforehand? Win10 says microphone is currently in use by SkySonde Server.


Re: SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

On Sat, Jun 20, 2020 at 02:04 AM, Alan G4ZFQ wrote:
And you have enabled Stereo Mix and removed the mute?
I made it the default device for recording and everywhere I look its volume is 100%. Is there a mute setting in SkySonde Server you are referring to?


Re: SkySonde audio setup #airspyr2 #sdrsharp

Mark Jessop
 

VB-Cable is probably a better option, and there's a free version (with only one 'loopback cable' - which is all you need!): https://www.vb-audio.com/Cable/

Install it, and you'll find you have one new playback device ('Cable Output'), and one new recording device ('Cable Input'). The rest is hopefully obvious!

If you're looking for something to decode radiosondes automatically, you might want to check out: https://github.com/projecthorus/radiosonde_auto_rx/wiki
Unfortunately it doesn't work with the Airspy yet (sorry prog...), but now i've got a functioning command-line spyserver client, that might be a possibility. 
For now, you'll have to use a RTLSDR. There's currently quite a few stations in the US uploading telemetry: https://tracker.sondehub.org/?sondehub=1#!mt=osm&mz=5&qm=6_hours&mc=39.42651,-94.10157&f=none&q=RS_*;*chase

73
Mark VK5QI



On Sat, Jun 20, 2020 at 5:34 PM Alan G4ZFQ <alan4alan@...> wrote:
> I see SkySonder Server is 'using the microphone',
> but it looks like SkySonde Server still isn't getting anything.

And you have enabled Stereo Mix and removed the mute?

 >Virtual Audio Cable has a 90-page user manual

Which I doubt many ever need to refer to, I'm not sure I ever have. In
any case the cheaper VB cable is adequate if you really can't get Stereo
Mix to work.
Unfortunately if you decide to use a computer for technical purposes it
is not often plug and play. There is usually a solution if you do not
give up.

73 Alan G4ZFQ




Re: SkySonde audio setup #airspyr2 #sdrsharp

Alan G4ZFQ
 

I see SkySonder Server is 'using the microphone', but it looks like SkySonde Server still isn't getting anything.
And you have enabled Stereo Mix and removed the mute?

Virtual Audio Cable has a 90-page user manual
Which I doubt many ever need to refer to, I'm not sure I ever have. In any case the cheaper VB cable is adequate if you really can't get Stereo Mix to work.
Unfortunately if you decide to use a computer for technical purposes it is not often plug and play. There is usually a solution if you do not give up.

73 Alan G4ZFQ


Re: Airspy and Windows XP

Paul
 

That worked a treat so it's all up and running, I didn't think to try Zadig on an AS so thanks a lot for your suggestion Alan.
Cheers
Paul


Re: SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

Bummer because I was looking forward to getting the telemetry of the NWS daily balloon launches here in Boise Idaho. I get the signal good with the Airspy Mini. I work with IMETs on wildfires as a fire behavior specialist; the IMET's don't always launch balloons but a couple years ago on a Utah fire I helped an IMET with the launches.  I know the lower atmosphere is complex but I never imagined that decoding a signal on a PC would be.


Re: 3 DTV carriers on 1 frequency Channel

Ray Anderson
 

Check table 8.2 in section 8.5.5.1 of the following document at atsc.org

“Recommended Practice:
Guide to the Use of the ATSC Digital Television Standard, including Corrigendum No. 1”

Alternate offset frequencies include the following: (selected for various cases where there are nearby analog and or other digital stations)

332.138 kHz ±3Hz
338.056 kHz ±1kHz

342.138 kHz ±3Hz
348.056 kHz ±1kHz

322.138 kHz ± 3 Hz
328.056 kHz ± 1 kHz

328.8436 kHz ± 10 Hz

The selection process Is pretty convoluted so you need to refer to the referenced document for details.

Ray
WB6TPU 





On Jun 19, 2020, at 10:47 AM, Greg Ella <gregella53@...> wrote:


The "standard" pilot tone in a North American ATSC signal is 309.440559 KHz above the bottom of the channel.  However, the ATSC specification allows for other specific pilot
tone frequencies when two or more transmitters are close enough to potentially interfere with each other.  I suspect that if you watch these 3 pilot tones over the long term, you
will find that each one is stable, accurate and precise, but two of them are not "standard".  Unfortunately, I have not found an online resource which gives the pilot tone frequency
for specific transmitters.

Greg Ella
N0EMP





Re: SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

On Fri, Jun 19, 2020 at 11:47 AM, jdow wrote:
"Virtual Audio Device" would be good search terms.
Virtual Audio Cable has a 90-page user manual.  Maybe I don't need to listen to that balloon after all. 


Re: SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

Thank you, I think I made some progress by getting rid of the USB Dragonfly DAC and plugging the PC Speakers directly into the soundcard jack.  I enabled Stereo Mix and it is active and selected as the Audio Input Device in SkySonde Server; I also tried all the audio output options in SDRSharp, I see SkySonder Server is 'using the microphone', but it looks like SkySonde Server still isn't getting anything. Out of ideas, thanks anyway.


Re: SkySonde audio setup #airspyr2 #sdrsharp

jdow
 

On 20200618 23:47:12, Alan G4ZFQ wrote:
Is there a way to just get SkySonde aimed at my PC audio output?
You need an intermediate connection from SDR# output to the program.
My notes here, https://sites.google.com/site/g4zfqradio/pipe_sound_between_sdr_and_decoder
Alan
"Virtual Audio Device" would be good search terms.

{^_^}


Re: 3 DTV carriers on 1 frequency Channel

Greg Ella
 

The "standard" pilot tone in a North American ATSC signal is 309.440559 KHz above the bottom of the channel.  However, the ATSC specification allows for other specific pilot
tone frequencies when two or more transmitters are close enough to potentially interfere with each other.  I suspect that if you watch these 3 pilot tones over the long term, you
will find that each one is stable, accurate and precise, but two of them are not "standard".  Unfortunately, I have not found an online resource which gives the pilot tone frequency
for specific transmitters.

Greg Ella
N0EMP


On Thu, Jun 18, 2020 at 9:57 AM jdow <jdow@...> wrote:
Fascinating - that spread suggests the pilots are not particularly well suited
for calibration to 1ppm. 3ppm might be OK.

{o.o}

On 20200617 11:44:33, David Eckhardt wrote:
> Here is a bit of data I just took from my system showing multiple broadcasters
> via meteor scatter.  There is some weak Es just below center which also shows
> overload, likely in the audio stages of the Icom R-7000.  There are also a few
> weak airline scatter traces which I still have yet to explain (if they are close
> enough to produce scatter from airliners, why don't I receive a direct signal
> from the transmitter?).  Local time is 1240 (MDT) so the meteor flux is greatly
> reduced from this morning.
> image.png
>
> Dave - WØLEV
>
>
> On Wed, Jun 17, 2020 at 11:16 AM David Eckhardt via groups.io <http://groups.io>
> <davearea51a=gmail.com@groups.io <mailto:gmail.com@groups.io>> wrote:
>
>     N. Colorado (WØLEV):  My traces are certainly not from CATV leakage as I'm
>     well away from the cities and the closest neighbor is 1/4-mile distant.  We
>     are very sparsely populated out here between two hog backs.  The spine of
>     the formed valley is N/S with no cities or villages in site.  With the
>     exception of Es, all traces support dense meteor scatter during morning
>     hours, and reduced flux during afternoons - very typical of meteors.  At
>     present I have 5 vertical traces painted by meteors and two discontinuous
>     weak Es signatures.
>
>     Dave - WØLEV
>
>     On Wed, Jun 17, 2020 at 2:16 AM jdow <jdow@...
>     <mailto:jdow@...>> wrote:
>
>         Those are apparently cable TV leakage or frequency translators to fill in
>         coverage in valleys. I'd not feel confident using their frequencies for
>         calibration, especially if you can see four of them.
>
>         {^_^}
>
>         On 20200616 10:18:56, David Eckhardt wrote:
>          > Here in the foothills of the Rockies in N. Colorado, at times I
>         receive as many
>          > as 6 and rarely 7 carriers on 66.310 MHz.  As I write, I have 6
>         individual
>          > broadcasters painting vertical smudges - LOT'S of meteors, especially
>         on one of
>          > the 6.  All but one carrier is detected only on densely painted
>         meteor scatter
>          > trails.  That single one is Es and paints an intermittent solid
>         vertical line.
>          > In 5 or so years of monitoring this frequency with the following
>         equipment, I
>          > have never detected less than 4 broadcasters at one time.
>          >
>          > Antenna:  Single 1/2-wavelength dipole at 10-feet off soil surface
>         (decaying
>          > Upper Permian mudstone), strung E/W.  Chicken
>          >                   laid on soil surface below dipole.
>          > Feedline:  100-feet of new RG-58
>          > Preamp:  Single narrowband J-310 followed MMIC (broadband) - inside,
>         not at
>          > antenna feed
>          > Receiver:  Icom R7000
>          > Frequency:  66.3095 USB
>          > PC:  Dell laptop running SpectrumLab
>          > Location:  40 16 36.80 N     105 13 0.16 W   (check QRZ map)
>          >
>          > Dave - WØLEV
>          >   -
>          >
>          > On Tue, Jun 16, 2020 at 1:06 AM Paul Cianciolo <paulc@...
>         <mailto:paulc@...>
>          > <mailto:paulc@... <mailto:paulc@...>>> wrote:
>          >
>          >     All,
>          >
>          >     This video was inspired by a comment from NO6B about the close
>         relationship
>          >     between carrier frequencies of DTV pilot on the same channel.
>         Here we see
>          >     that Hz relationship but also propagation of 3 carriers from 3
>         different
>          >     transmitters on the same frequency, and the distinctly different
>         propagation
>          >     happening on each carrier. The frequency relationship does not
>         vary, but the
>          >     relative amplitudes of the carriers are subject to 3 distinct
>         terrestrial
>          >     paths. 2 hours of waterfall are compressed into just a couple
>         minutes.
>          >
>          >     Here is the link https://youtu.be/Sbq_Ny-BbZE
>          >
>          >
>          >
>          >
>          >     PaulC
>          >     W1VLF
>          >
>          >
>          >
>          > --
>          > *Dave - WØLEV*
>          > /*Just Let Darwin Work*/
>          >
>          >
>
>
>
>
>
>     --
>     *Dave - WØLEV*
>     /*Just Let Darwin Work*/
>
>
>
> --
> *Dave - WØLEV*
> /*Just Let Darwin Work*/
>
>
>
> 66.3095 A - 17 JUNE 2020.jpg
>




Re: skinned v skinned versions.

Steve Jerome
 

That’s told Kevin, who to me asked a perfectly reasonable question !

Steve


Re: Airspy and Windows XP

Alan G4ZFQ
 

Yes, from my HDSDR page

"Airspy SDRs:- (HF+ USB ID 03EB 800C) A few have not been able to get the driver to install using the instructions at the Airspy site. The driver is WinUSB, Zadig has installed that when all else seems to have failed."


Re: Airspy and Windows XP

Alan G4ZFQ
 

the Wizard cannot find the necessary software' even though it's pointing at the correct folder.
Paul,

I *MAY* have used Zadig to point libusb to the HF+

73 Alan G4ZFQ


Re: Airspy and Windows XP

Alan G4ZFQ
 

can it install on XP?
Paul

Yes, it does, I've just checked with HDSDR.
Don't ask me how.. it must have been a while ago that I set that profile.
-p AirSpy1 extio_airspyhf_101117.dll

73 Alan G4ZFQ


Airspy and Windows XP

Paul
 

I'm hoping to have a week away where analogue TV on all VHF and UHF bands is still alive and well so I've been setting up an old laptop with three programs for capturing analogue TVDX that won't run on any OS later than XP. So far so good but it would be useful to use my Airspy to capture the audio channel so I can tailor the bandwidth to suit reception but will it install on XP?

I've installed a new drive and installed XP SP3, I know Sharp ver1361 runs on XP and it supports Airspy. I've tried the compatability driver from the Airspy website but that fails 'because the Wizard cannot find the necessary software' even though it's pointing at the correct folder. I'm sure I used my Airspy with XP when I first purchased it (first release) but maybe I was mistaken? So, did it or can it install on XP?
Paul


Re: SkySonde audio setup #airspyr2 #sdrsharp

Alan G4ZFQ
 

Is there a way to just get SkySonde aimed at my PC audio output?
You need an intermediate connection from SDR# output to the program.
My notes here, https://sites.google.com/site/g4zfqradio/pipe_sound_between_sdr_and_decoder

Alan


SkySonde audio setup #airspyr2 #sdrsharp

valuedshortwavelistener@...
 

I have a telemetry signal from an Airspy Mini (SDRSharp) but I can't get the audio into SkySonde Server.  The single option in the Select Audio Input Device dropdown is Microphone(3-USB Advanced Audio Device) but my computer audio is through a Dragonfly DAC plugged into a USB port. The SkySonde User Manual (Version 1.9 July 2016) seems to say using a microphone port is the only option.  Confusing because under Data Source one of the options is Sound Card Audio.
Is there a way to just get SkySonde aimed at my PC audio output?
Thanks.


Re: 3 DTV carriers on 1 frequency Channel

jdow
 

Fascinating - that spread suggests the pilots are not particularly well suited for calibration to 1ppm. 3ppm might be OK.

{o.o}

On 20200617 11:44:33, David Eckhardt wrote:
Here is a bit of data I just took from my system showing multiple broadcasters via meteor scatter.  There is some weak Es just below center which also shows overload, likely in the audio stages of the Icom R-7000.  There are also a few weak airline scatter traces which I still have yet to explain (if they are close enough to produce scatter from airliners, why don't I receive a direct signal from the transmitter?).  Local time is 1240 (MDT) so the meteor flux is greatly reduced from this morning.
image.png
Dave - WØLEV
On Wed, Jun 17, 2020 at 11:16 AM David Eckhardt via groups.io <http://groups.io> <davearea51a=gmail.com@groups.io <mailto:gmail.com@groups.io>> wrote:
N. Colorado (WØLEV):  My traces are certainly not from CATV leakage as I'm
well away from the cities and the closest neighbor is 1/4-mile distant.  We
are very sparsely populated out here between two hog backs.  The spine of
the formed valley is N/S with no cities or villages in site.  With the
exception of Es, all traces support dense meteor scatter during morning
hours, and reduced flux during afternoons - very typical of meteors.  At
present I have 5 vertical traces painted by meteors and two discontinuous
weak Es signatures.
Dave - WØLEV
On Wed, Jun 17, 2020 at 2:16 AM jdow <jdow@...
<mailto:jdow@...>> wrote:
Those are apparently cable TV leakage or frequency translators to fill in
coverage in valleys. I'd not feel confident using their frequencies for
calibration, especially if you can see four of them.
{^_^}
On 20200616 10:18:56, David Eckhardt wrote:
> Here in the foothills of the Rockies in N. Colorado, at times I
receive as many
> as 6 and rarely 7 carriers on 66.310 MHz.  As I write, I have 6
individual
> broadcasters painting vertical smudges - LOT'S of meteors, especially
on one of
> the 6.  All but one carrier is detected only on densely painted
meteor scatter
> trails.  That single one is Es and paints an intermittent solid
vertical line.
> In 5 or so years of monitoring this frequency with the following
equipment, I
> have never detected less than 4 broadcasters at one time.
>
> Antenna:  Single 1/2-wavelength dipole at 10-feet off soil surface
(decaying
> Upper Permian mudstone), strung E/W.  Chicken
>                   laid on soil surface below dipole.
> Feedline:  100-feet of new RG-58
> Preamp:  Single narrowband J-310 followed MMIC (broadband) - inside,
not at
> antenna feed
> Receiver:  Icom R7000
> Frequency:  66.3095 USB
> PC:  Dell laptop running SpectrumLab
> Location:  40 16 36.80 N     105 13 0.16 W   (check QRZ map)
>
> Dave - WØLEV
>   -
>
> On Tue, Jun 16, 2020 at 1:06 AM Paul Cianciolo <paulc@...
<mailto:paulc@...>
> <mailto:paulc@... <mailto:paulc@...>>> wrote:
>
>     All,
>
>     This video was inspired by a comment from NO6B about the close
relationship
>     between carrier frequencies of DTV pilot on the same channel.
Here we see
>     that Hz relationship but also propagation of 3 carriers from 3
different
>     transmitters on the same frequency, and the distinctly different
propagation
>     happening on each carrier. The frequency relationship does not
vary, but the
>     relative amplitudes of the carriers are subject to 3 distinct
terrestrial
>     paths. 2 hours of waterfall are compressed into just a couple
minutes.
>
>     Here is the link https://youtu.be/Sbq_Ny-BbZE
>
>
>
>
>     PaulC
>     W1VLF
>
>
>
> --
> *Dave - WØLEV*
> /*Just Let Darwin Work*/
>
>
--
*Dave - WØLEV*
/*Just Let Darwin Work*/
--
*Dave - WØLEV*
/*Just Let Darwin Work*/
66.3095 A - 17 JUNE 2020.jpg