Date   
Re: #aero #aero

MadMike
 

Hi Roland,

This is a MultiPSK group, so why don't you use MultiPSK to decode your L-Band Aero messages, it works very well, and you can then pass the data  to my freeware Display-Launcher to get a full display of ground to air messages.

Regards, Mike Simpson
South Penrith, NSW, Australia


Re: #aero #aero

Glen Ellenbart
 

you have to compile the aeroambe files!!!    Follow the steps to the T in all three of these videos!
https://www.youtube.com/watch?v=yyX4JkTwStA

https://www.youtube.com/watch?v=cK8g7vNXwaA

https://www.youtube.com/watch?v=mT3OyhHwDkY

Re: #aero #aero

Paul Gulliver
 

Hi Roland,
Just to try and help a bit more I've attached a couple of screenshots of how your SDR# and Jaero should be looking - in this case I'm decoding a 600bps signal. 
The SDR# settings are USB with a 5KHz bandwidth.
If you notice the third spike from the left is wider than the others, this is a 1200bps signal

Hope this helps a bit

Paul

Re: #aero #aero

Roland Fechter
 

Thanks for your reply, Paul !

Yes, I DO use a virtual cable from my sdrsharp to Jaero. I never get all three green lights in Jaero - at most only volume, very rarely shortly signal and never data !

Never all 3 lights together !  I do try different frequs and speeds following the information you and other members kindly offer to me - only once I got a EBNo of 9-10 -

mostly far below and even then no decoding !  I am going to change my set-up linking my dongle next to my LNA and then feeding currency from my notebook to my dongle via a 20m long active USB cable. Maybe THIS is the solution to my problem !?

Thanks once again for your kind interest in my non-ending ? saga !!!

Regards,

Roland

 

Am 14.01.2019 um 17:05 schrieb Paul Gulliver:

Roland

Aeroamble is for voice messages only - it will not effect the decoding of standard L band or C band aero messages - I get the same error message but still manage to decode OK

Ignore the error message and check the following:
Are you using a virtual audio cable to pass to pass the audio from your receiver to Jaero? The standard soundcard/speaker line is not suitable
Are you getting all three green lights in Jaero? (Volume,signal and data)
Have you selected the correct speed for the signal you're receiving?

Paul

On 14/01/2019 at 15:45, Roland Fechter <fly-fechter@...> wrote:

However Jaero refuses to decode these, saying "cant find or load the libraries necessary for aeroambe".

Re: #aero #aero

Willi Rauschenberg
 

Hi Roland,

just do not take notice of "Can't find or load all the libraries necessary for aeroambe. You will not get audio."

This is for information only and does not effect the decoding. Audio between groundstations and planes can occasionally heard in C-band.
JAERO also decodes audio, but due to legal reasons regarding patents it is necessary to compile the audio decoder manually from source.
73
Willi

 

ror"Am 14.01.2019 um 16:45 schrieb Roland Fechter:

Hallo,
I am glad to report that thanks to my new Anjo Inmarsat Yagi and my NSDR Smartee dongle plus my barebone LNA I manage finally to
get aero signals. However Jaero refuses to decode these, saying "cant find or load the libraries necessary for aeroambe".
I have now installed MSYS2 MinGW 64 bit in my Windows 10 OS. Apparently this is not good enough as I still receive the Jaero complaint about missing libraries !
I know that there are many members of your group decoding successfully Aero data via Sdrsharp/ Jaero.
I would be most grateful for your help re these missing libraries and their Installation into Jaero.
Thanks in advance for your assistance.
Kind regards,
Roland


Re: #aero #aero

Paul Gulliver
 

Roland

Aeroamble is for voice messages only - it will not effect the decoding of standard L band or C band aero messages - I get the same error message but still manage to decode OK

Ignore the error message and check the following:
Are you using a virtual audio cable to pass to pass the audio from your receiver to Jaero? The standard soundcard/speaker line is not suitable
Are you getting all three green lights in Jaero? (Volume,signal and data)
Have you selected the correct speed for the signal you're receiving?

Paul


On 14/01/2019 at 15:45, Roland Fechter <fly-fechter@...> wrote:

However Jaero refuses to decode these, saying "cant find or load the libraries necessary for aeroambe".

#aero #aero

Roland Fechter
 

Hallo,
I am glad to report that thanks to my new Anjo Inmarsat Yagi and my NSDR Smartee dongle plus my barebone LNA I manage finally to
get aero signals. However Jaero refuses to decode these, saying "cant find or load the libraries necessary for aeroambe".
I have now installed MSYS2 MinGW 64 bit in my Windows 10 OS. Apparently this is not good enough as I still receive the Jaero complaint about missing libraries !
I know that there are many members of your group decoding successfully Aero data via Sdrsharp/ Jaero.
I would be most grateful for your help re these missing libraries and their Installation into Jaero.
Thanks in advance for your assistance.
Kind regards,
Roland

Re: MMSI List

David Stark
 

Hmph.  I failed to update my thumb drive MULTIPSK directory, which is why I was looking at an outdated file.

Thanks for setting me straight.

-Dave, NF2G

Re: SELCALL 32

Glen Ellenbart
 

Yes I agree!  It appears the system started in 1956 and no update til now.

SELCALL 32

Patrick Lindecker
 

Hello Glen,

 

Thanks for the post. It would be a good idea to have one identifier for one plane, thanks to this system (32 carriers instead 16, fully compatible with the old one).

So we will to wait 2020 for the first transmissions.

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Glen Ellenbart
Envoyé : samedi 12 janvier 2019 04:31
À : multipsk@groups.io
Objet : Re: [multipsk] SELCALL Flightaware combo box

 

By the way here is some interesting reading on a proposal to update the SELCAL system soon!

https://www.asri.aero/selcal/selcal-32/

SELCAL 32 Expansion Program

Growth of SELCAL

While SELCAL is an older technology by aviation standards, demand for SELCAL codes continues to increase by approximately 4% annually.   This demand is being driven by the expanding civil aviation market and the requirement for almost all aircraft flying in remote regions to have HF communications.  The resulting growth in the last decade has now oversubscribed the ICAO SELCAL register maintained by ASRI.  The current database totals over 35,000 individual SELCAL code assignments while still increasing at rate of 3000 registrations a year.  Given the 16 tone SELCAL system is limited to only 10,920 unique codes, this means multiple duplicate codes have been issued to different aircraft for what is supposed to be a unique identifier.  While the ICAO Registrar (ASRI) attempts to mitigate the issue of duplicate SELCAL codes, the situation is expected to deteriorate with the growing number of airframes worldwide.

In one study by ASRI in 2012, a single ANSP ground station reported 266 occurrences of multiple aircraft responding to the same transmitted SELCAL code.  Furthermore, several incidents have been reported with up to 6 different aircraft answering to a single transmission for what is supposed to be a unique assignment.

A second ANSP with a Flight Information Region (FIR) covering the NAT recorded duplicate SELCAL events listed below over the last five years.

DATE

2012

2013

2014

2015

2016

TOTAL Flights

400,480

404,787

420,423

442,645

470,000

Recorded Duplicate SELCAL Events

90

100

181

250

280

As the ICAO nominated registrar, ASRI is concerned that the duplication of codes is creating some potential human factors risk for aircrews and additional workload on service providers.  Aviation HF and VHF voice continues to be used extensively world-wide and will be a backup communications media for the foreseeable future.  The ICAO Global Air Navigation Plan (GANP) 5th edition has planned that HF systems will be operational beyond 2030.  Expected HF usage has already been extended several times over the years due to existing equipage and demand for use from aircraft operators and ANSPs.

What is SELCAL 32?

To mitigate duplicate SELCAL code concerns, ASRI has been attempting to educate users about the potential duplication issue, while radio ground station operators have been proactively managing aircraft to minimize the issue.  However, these measures can only mitigate the duplication issue so far, and therefore ASRI in cooperation with the affected Civil Aviation Authorities (CAAs), ANSPs, and avionics manufacturers, has been updating the SELCAL standards to allow for aviation growth.  The new SELCAL proposal uses sixteen (16) new audio tones, in addition to the existing 16 audio tones, to create SELCAL codes from a total of 32 available audio frequencies (called SELCAL 32).

The updated standard labels the new audio frequencies with letters from T to Z, and the numbers 1 to 9. Creating SELCAL codes from these 32 different audio tones will result in up to 200,000 new unique SELCAL codes being available for assignment, mitigating the duplicate code issue for the foreseeable future.

The SELCAL 32 proposal will allow for new SELCAL avionics to operate without an increasing risk of SELCAL code duplication and the associated operational impacts.  As this solution uses the existing 16 audio tones, it is backwards compatible with all existing aircraft avionics, while providing benefits to new aircraft with the updated SELCAL 32 standard.  With growing support in the international aviation community, the new SELCAL 32 standard will eventually allow for continued operation of the SELCAL system to meet the increasing worldwide demand from aviation.

Implementation Guidance for SELCAL 32

ANSPs will need to consider the impact of the SELCAL code pool expansion on their flight planning systems and any other systems that support the SELCAL system. Airlines will need to evaluate the impact that the SELCAL code pool expansion may have on their ground systems including flight planning when new aircraft are added to their fleets that support the expanded SELCAL code pool functionality.

Airbus and Boeing are expected to begin offering the SELCAL 32 functionality on new aircraft being delivered after the 2020 timeframe, with some existing aircraft being already compatible with suitable software updates.




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Re: SELCALL Flightaware combo box

Glen Ellenbart
 

By the way here is some interesting reading on a proposal to update the SELCAL system soon!

https://www.asri.aero/selcal/selcal-32/

SELCAL 32 Expansion Program

Growth of SELCAL

While SELCAL is an older technology by aviation standards, demand for SELCAL codes continues to increase by approximately 4% annually.   This demand is being driven by the expanding civil aviation market and the requirement for almost all aircraft flying in remote regions to have HF communications.  The resulting growth in the last decade has now oversubscribed the ICAO SELCAL register maintained by ASRI.  The current database totals over 35,000 individual SELCAL code assignments while still increasing at rate of 3000 registrations a year.  Given the 16 tone SELCAL system is limited to only 10,920 unique codes, this means multiple duplicate codes have been issued to different aircraft for what is supposed to be a unique identifier.  While the ICAO Registrar (ASRI) attempts to mitigate the issue of duplicate SELCAL codes, the situation is expected to deteriorate with the growing number of airframes worldwide.

In one study by ASRI in 2012, a single ANSP ground station reported 266 occurrences of multiple aircraft responding to the same transmitted SELCAL code.  Furthermore, several incidents have been reported with up to 6 different aircraft answering to a single transmission for what is supposed to be a unique assignment.

A second ANSP with a Flight Information Region (FIR) covering the NAT recorded duplicate SELCAL events listed below over the last five years.

DATE 2012 2013 2014 2015 2016
TOTAL Flights 400,480 404,787 420,423 442,645 470,000
Recorded Duplicate SELCAL Events 90 100 181 250 280

As the ICAO nominated registrar, ASRI is concerned that the duplication of codes is creating some potential human factors risk for aircrews and additional workload on service providers.  Aviation HF and VHF voice continues to be used extensively world-wide and will be a backup communications media for the foreseeable future.  The ICAO Global Air Navigation Plan (GANP) 5th edition has planned that HF systems will be operational beyond 2030.  Expected HF usage has already been extended several times over the years due to existing equipage and demand for use from aircraft operators and ANSPs.

What is SELCAL 32?

To mitigate duplicate SELCAL code concerns, ASRI has been attempting to educate users about the potential duplication issue, while radio ground station operators have been proactively managing aircraft to minimize the issue.  However, these measures can only mitigate the duplication issue so far, and therefore ASRI in cooperation with the affected Civil Aviation Authorities (CAAs), ANSPs, and avionics manufacturers, has been updating the SELCAL standards to allow for aviation growth.  The new SELCAL proposal uses sixteen (16) new audio tones, in addition to the existing 16 audio tones, to create SELCAL codes from a total of 32 available audio frequencies (called SELCAL 32).

The updated standard labels the new audio frequencies with letters from T to Z, and the numbers 1 to 9. Creating SELCAL codes from these 32 different audio tones will result in up to 200,000 new unique SELCAL codes being available for assignment, mitigating the duplicate code issue for the foreseeable future.

The SELCAL 32 proposal will allow for new SELCAL avionics to operate without an increasing risk of SELCAL code duplication and the associated operational impacts.  As this solution uses the existing 16 audio tones, it is backwards compatible with all existing aircraft avionics, while providing benefits to new aircraft with the updated SELCAL 32 standard.  With growing support in the international aviation community, the new SELCAL 32 standard will eventually allow for continued operation of the SELCAL system to meet the increasing worldwide demand from aviation.

Implementation Guidance for SELCAL 32

ANSPs will need to consider the impact of the SELCAL code pool expansion on their flight planning systems and any other systems that support the SELCAL system. Airlines will need to evaluate the impact that the SELCAL code pool expansion may have on their ground systems including flight planning when new aircraft are added to their fleets that support the expanded SELCAL code pool functionality.

Airbus and Boeing are expected to begin offering the SELCAL 32 functionality on new aircraft being delivered after the 2020 timeframe, with some existing aircraft being already compatible with suitable software updates.

Re: MMSI List

Patrick Lindecker
 

Dave,

 

The GMDSS_MMSI_coast_stations.txt file is maintained by Peter. The last version (the one inside the last Multipsk package) is from the 6th of september 2018.

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de David Stark
Envoyé : vendredi 11 janvier 2019 14:09
À : multipsk@groups.io
Objet : Re: [multipsk] MMSI List

 

Probably, but I pasted the file name (minus date string) from my MULTIPSK directory.  If the name has changed, I was not aware of it.

-Dave, NF2G




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Re: MMSI List

David Stark
 

Probably, but I pasted the file name (minus date string) from my MULTIPSK directory.  If the name has changed, I was not aware of it.

-Dave, NF2G

Re: MMSI List

Patrick Lindecker
 

Hello Dave,

 

>Multipsk+Coast+station+MMSI+list+*.txt?
Do you mean the GMDSS_MMSI_coast_stations.txt file?

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de David Stark
Envoyé : vendredi 11 janvier 2019 06:38
À : multipsk@groups.io
Objet : [multipsk] MMSI List

 

Several folks are now working on building up the VDL2 database.  Is anyone maintaining or doing similar work on
Multipsk+Coast+station+MMSI+list+*.txt?

The most recent one I have is from 2015.

-Dave, NF2G




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Re: MMSI List

Sergio Sarabia
 

This attached list is dated January 9, 2019.

MMSI List

David Stark
 

Several folks are now working on building up the VDL2 database.  Is anyone maintaining or doing similar work on
Multipsk+Coast+station+MMSI+list+*.txt?

The most recent one I have is from 2015.

-Dave, NF2G

Re: Multipsk 4.38 - Test version 4

Patrick Lindecker
 

Hello Ralf,

 

>I did not realize that 'Preceded by the "Notes" field' is a button. Sorry. 
Yes I confirm

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Ralf Bender
Envoyé : jeudi 10 janvier 2019 22:13
À : multipsk@groups.io
Objet : Re: [multipsk] Multipsk 4.38 - Test version 4

 

Me again.
Reading the help file before write a comment will sometimes help....
I did not realize that 'Preceded by the "Notes" field' is a button. Sorry. 
I works perfect!

Thanks a lot, Patrick!




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Re: Multipsk 4.38 - Test version 4

Ralf Bender
 

Me again.
Reading the help file before write a comment will sometimes help....
I did not realize that 'Preceded by the "Notes" field' is a button. Sorry. 
I works perfect!

Thanks a lot, Patrick!

Re: Multipsk 4.38 - Test version 4

Ralf Bender
 

Hello Patrick,

many thanks for the modifications. 

Maybe I did something wrong, but the eQSL option doesn't work for me.
As you can see I wrote some notes into the log:


But they didn't arrived in the eQSL comments:



or did I miss an option?



73
Ralf

Re: Multipsk 4.38 - Test version 4

Patrick Lindecker
 

Hello Paul,

 

>What is new in this test version, just to give us some idea what we are testing :)

You are right. All are minor modifications:

·         in AERO C band, a TCP/IP panel to transfer data to Virtual Radar,

·         the "Frequencies" command in the RX/TX menu (top part),

·         for many modes, use of Junzis and Flightradar for plane database,

·         an addition of an eQSL option about the QSL comment.

 

73

Patrick

 

 

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Paul Gulliver
Envoyé : jeudi 10 janvier 2019 18:35
À : multipsk@groups.io
Objet : Re: [multipsk] Multipsk 4.38 - Test version 4

 

Hi Patrick

What is new in this test version, just to give us some idea what we are testing :)

 

Paul

 

On 10/01/2019 at 17:09, Patrick Lindecker <f6cte@...> wrote:

Hello to all,

 

Before issuing the 4.38.1 version, I proposed this test version 4: http://f6cte.free.fr/MULTIPSK_4_38_1_test_version_4.zip

 

Paste this address in your Internet Explorer or equivalent. Download the file.
Extract the ZIP file and replace the “official” Multipsk.exe with this test version. Before, make a copy of the “official” Multipsk.exe, in case of. I also added the two updated manuals (French and English).

 

Thanks for report on possible regression bugs.

 

73

Patrick

 


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