Date   
New HFDL system table and a new Ground station in South Korea near Muan Int Airport (MWX RKJB)

Dick
 

As reported on the Yahoo HFDL group by Donnie several HFDL groundstations started using system table 51.
The most exiting thing is that apparently a new Ground Station is added.
I configured PC-HFDL so that it will show ID 10 as MUAN - SOUTH KOREA
As some programs use this name it seem best if we all use the same :-)

Ground Station ID 10
MUAN - SOUTH KOREA
UTC UNLOCKED
Longitude 126 14 19 E Latitude 35 1 56 N Squitter Version 0 Number of frequencies 8 Frequency 21931000 Hz Master Frame Slot 3 Frequency 17958000 Hz Master Frame Slot 11 Frequency 13342000 Hz Master Frame Slot 7 Frequency 10060000 Hz Master Frame Slot 3 Frequency 8939000 Hz Master Frame Slot 11 Frequency 6619000 Hz Master Frame Slot 7 Frequency 5502000 Hz Master Frame Slot 3 Frequency 2941000 Hz Master Frame Slot 7

John posted:
It's right outside Taecheonan-gil, on a peninsula in the southwest coast of South Korea. Google Earth shows 2 towers with the characteristic guy anchor points. It's about 14km from Muan International Airport.

So who will be the first one to log a message from this Ground Station?

See attached 'SystemTable 51.zip' file.

To use this SystemTable with PC-HFDL
1. Stop PC-HFDL.
2. Copy pchfdl.dat and pchfdl.txt to your \PC-HFDL\configs folder.
3. Start PC-HFDL

The file 'pchfdl.txt' shows ID 10 as MUAN - SOUTH KOREA.
The file 'SystemTable 51 (hex 33).txt' shows the table in readable format.

@ Patrick, not sure what is needed to add this new GS to MultiPSK, but I amsure you will take care of it...

Cheers and 73,
Dick PA2015

Re: New HFDL system table and a new Ground station in South Korea near Muan Int Airport (MWX RKJB)

Patrick Lindecker
 

Hello Dick,

Thanks for the information. I just have updated the code and HFDL_System_Table.txt with the new Muan station.

73
Patrick

-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Dick
Envoyé : mercredi 16 janvier 2019 13:27
À : multipsk@groups.io
Objet : [multipsk] New HFDL system table and a new Ground station in South Korea near Muan Int Airport (MWX RKJB)

As reported on the Yahoo HFDL group by Donnie several HFDL groundstations started using system table 51.
The most exiting thing is that apparently a new Ground Station is added.
I configured PC-HFDL so that it will show ID 10 as MUAN - SOUTH KOREA As some programs use this name it seem best if we all use the same :-)

Ground Station ID 10
MUAN - SOUTH KOREA
UTC UNLOCKED
Longitude 126 14 19 E Latitude 35 1 56 N Squitter Version 0 Number of frequencies 8 Frequency 21931000 Hz Master Frame Slot 3 Frequency 17958000 Hz Master Frame Slot 11 Frequency 13342000 Hz Master Frame Slot 7 Frequency 10060000 Hz Master Frame Slot 3 Frequency 8939000 Hz Master Frame Slot 11 Frequency 6619000 Hz Master Frame Slot 7 Frequency 5502000 Hz Master Frame Slot 3 Frequency 2941000 Hz Master Frame Slot 7

John posted:
It's right outside Taecheonan-gil, on a peninsula in the southwest coast of South Korea. Google Earth shows 2 towers with the characteristic guy anchor points. It's about 14km from Muan International Airport.

So who will be the first one to log a message from this Ground Station?

See attached 'SystemTable 51.zip' file.

To use this SystemTable with PC-HFDL
1. Stop PC-HFDL.
2. Copy pchfdl.dat and pchfdl.txt to your \PC-HFDL\configs folder.
3. Start PC-HFDL

The file 'pchfdl.txt' shows ID 10 as MUAN - SOUTH KOREA.
The file 'SystemTable 51 (hex 33).txt' shows the table in readable format.

@ Patrick, not sure what is needed to add this new GS to MultiPSK, but I amsure you will take care of it...

Cheers and 73,
Dick PA2015





---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus

New releases of MULTIPSK (4.38.1) and Clock (1.11.6)

Patrick Lindecker
 

New releases of MULTIPSK (4.38.1) and Clock (1.11.6)

 

Pour les francophones: la version en français de ce message se trouve sur mon site (http://f6cte.free.fr). Il suffit de cliquer sur le lien "Principales modifications (courriel avertissant de la sortie de la nouvelle version)".


Hello to all Ham and SWL,

 

The new releases of Clock 1.11.6 and MultiPSK (4.38.1) are on my Web site (http://f6cte.free.fr/index_anglais.htm).
The mirror site is Earl's, W8BR: https://www.paazig.net/f6cte/MULTIPSK_setup.exe

The MD5 signature of the downloaded MULTIPSK_setup.exe file to, possibly, check (with WinMD5 for example), that the downloading works without error, is equal to: e65507188345823fc14f01c6cefd7658

Multipsk associated to Clock are freeware programs but with functions submitted to a license (by user key).

 

The main improvement of Clock 1.11.6 is the possibility to receive GPS time frames through a NMEA 183 link at the 4800 bauds 8-N-1 or 8-N-2 (1 ou 2 stop bits) formats.

 

The main improvements of MULTIPSK 4.38.1 are the following:

 

Improvement of the AERO decoding

 

The C band decoding at 1200 bauds has been completely reviewed.

However, unfortunately, the  C band reception remains very difficult (a big dish is required).

 

Example of decoding:

<15/01/19 23:21:38> Type: 7 (Other "safety") / Reference no.: 3 / Towards station 43 [Aussaguel --> sat. AOR-E (3-F2)] from plane 3C64F6

Complete ACARS message:  Mode: 2 / Plane identifier: D-AIGV / Ack.: {NAK} / Type: B6 (Downlink - Provide ADS report) / Block: 5 (Downlink)

Message: J49ALH0515/NYCODYA.ADS.D-AIGV071EDC66FB5989089E241D0E17D12CC0000F15B18FC00010922F7E7A0D2000071C71C90886BF222227555549088055F4 

Flight number: LH515 / Controlled by FIR: NYCODYA (New York - USA)

Basic report:  Lat = 43.3981°  Long = -45.8175°  Alt = 37000 feet (11278 m)  Time = [H]:32:09  FOM: 29

By reference to Earth:  Track = 67°  Horizontal speed = 602 knots (1115 km/h)  Vertical speed = 0 feet/mn (0.00 m/s)

By reference to air:  Track = 61°  Mach speed = 0.799  Vertical speed = 0 feet/mn (0.00 m/s)

Meteo (wind/air):  Speed = 146 knots (270 km/h)  True direction = 267°  Temperature = -49°C (-56°F)

Next waypoint in 00:28:47:  Lat = 45.0000°  Long = -40.0000°  Alt = 37000 feet (11278 m)

 

The L band AERO modes decoding have also been improved.

 

Frequencies

The "Frequencies" command has been added in the RX/TX menu. This one gives access to all the frequencies, known by the author, for all the modes decoded by Multipsk.

 

Improvement of the "Extended Message" mode management

Several improvements have been integrated.

Example of several EM messages displayed simultaneously on the waterfall.

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.38 version of Multipsk has been translated to Spanish by Joachin (EA4ZB), from French.

See: http://f6cte.free.fr/Translation_files.htm.

 

 

73

Patrick




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L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
www.avast.com


#aero #aero

Roland Fechter
 

Hallo,
First  time good news from me - I finally left  SDRsharp and JAERO in their  dormant state - apparently they consider the signal strength I get as insufficient for them -and went over to Multipsk aero. To my great delight and relief decoding of 10500 baud messages via Perth and Fucino started immediately !
Chapeau to Patrick - great job from him !!!
As I hope and suppose that these messages also contain position data from hopefully many airplanes over oceans I wonder how - if so - I could get Planeplotter
to read and indicate their positions. Could you kindly tell me or refer me to a link containing this information, please ?
Thanks in advance for your attention and assistance.
Kind regards,
Roland

#aero #aero

Roland Fechter
 

Hello,
Further to my previous message I now understand that the L-band frequs do not carry positional Information and that the latter can be found on the C-band only..
I am still after positional data which can be made visible by Planeplotter, i.e. the respective locations over oceans etc.
I am sure many of the Aero "fans" know on which frequencies and at which Bauds positional data is transmitted and how to make Planeplotter access and show this data on maps/charts.
Would you kindly disclose to me this information ?
Thanks in advance,
Regards,
Roland

Re: #aero #aero

Paul Gulliver
 

Roland,
I suggest you ask these questions in the Plane Plotter group  https://groups.io/g/planeplotter

The following may help




Note that for Alphasat you will need a least an 1.8m or 2.4m dia dish to get a good signal for decoding

Paul


On 18/01/2019 at 10:16, Roland Fechter <fly-fechter@...> wrote:
Hello,
Further to my previous message I now understand that the L-band frequs do not carry positional Information and that the latter can be found on the C-band only..
I am still after positional data which can be made visible by Planeplotter, i.e. the respective locations over oceans etc.
I am sure many of the Aero "fans" know on which frequencies and at which Bauds positional data is transmitted and how to make Planeplotter access and show this data on maps/charts.
Would you kindly disclose to me this information ?
Thanks in advance,
Regards,
Roland

Not recognizing VSPE ports

Roger
 

I am trying to run 4.38.1 on my Win7 PC. It seems to be working for RX.
TX function requires PTT and Multipsk is not detecting the virtual serial port created by Virtual Serial Port Emulator. All other apps that I have used have no problem seeing these ports. Is there a fix?
Thank you.
Roger

110A and 4485

Roger
 

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where stations are transmitting the submodes that Multipsk can decode? LF stations that can be received in west coast Canada would be best.
Thank you.

Re: Not recognizing VSPE ports

Patrick Lindecker
 

Hello Roger,

Is there a fix?
There is no bug. Simply, Multipsk sees what Windows sees (through an API).

73
Patrick

-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : samedi 19 janvier 2019 00:09
À : multipsk@groups.io
Objet : [multipsk] Not recognizing VSPE ports

I am trying to run 4.38.1 on my Win7 PC. It seems to be working for RX.
TX function requires PTT and Multipsk is not detecting the virtual serial
port created by Virtual Serial Port Emulator. All other apps that I have
used have no problem seeing these ports. Is there a fix?
Thank you.
Roger



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus

110A and 4485 - WWVB

Patrick Lindecker
 

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen, you
will have all the frequencies (as far as I know them) for all the Multipsk
decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations
decoded by Clock (for example WWVB, see below, extracted from the paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization source
for tens of millions of radio controlled clocks, began operation from its
present location near Fort Collins, Colorado at 0 hours, 0 minutes Universal
Time on July 5, 1963. Thus, the year 2013 marked the station’s 50th
anniversary, a half century of delivering frequency and time signals
referenced to the national standard to the United States public. One of the
best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras. Based
on technology that was already mature and well established when the station
began broadcasting in 1963, WWVB later benefitted from the miniaturization
of electronics and the advent of the microprocessor, which made low cost
radio controlled clocks possible that would work indoors. "

73
Patrick

-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : samedi 19 janvier 2019 00:16
À : multipsk@groups.io
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where stations
are transmitting the submodes that Multipsk can decode? LF stations that can
be received in west coast Canada would be best.
Thank you.



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus

Re: #aero #aero

Roland Fechter
 

Thank you, Paul !

What is your location, please ? Do you get your data from 215E Alphasat ??

How big and what kind of dish do you use ?

Do you happen to be able to receive at your location POSITIONAL data of aircraft ?

If so, would you mind to tell me the respective frequencies including Bauds ?

And lastly .......do they show clear, uncoded plain positions, e.g. N.........E........ readable by Planeplotter via Jaero ?

Sorry to bother you again, however your reply to these questions would be most appreciated by me !

Regards,

Roland

Am 18.01.2019 um 12:00 schrieb Paul Gulliver:

Roland,
I suggest you ask these questions in the Plane Plotter group  https://groups.io/g/planeplotter

The following may help




Note that for Alphasat you will need a least an 1.8m or 2.4m dia dish to get a good signal for decoding

Paul


On 18/01/2019 at 10:16, Roland Fechter <fly-fechter@...> wrote:
Hello,
Further to my previous message I now understand that the L-band frequs do not carry positional Information and that the latter can be found on the C-band only..
I am still after positional data which can be made visible by Planeplotter, i.e. the respective locations over oceans etc.
I am sure many of the Aero "fans" know on which frequencies and at which Bauds positional data is transmitted and how to make Planeplotter access and show this data on maps/charts.
Would you kindly disclose to me this information ?
Thanks in advance,
Regards,
Roland

Re: #aero #aero

Paul Gulliver
 

Sorry Roland, I don't receive C-band transmissions from Alphasat so I'm unable to help.

I think you will find John has answered most of your questions in the reply he made to your post in the Plane Plotter group (also in the links I provided in a previous post).

Cheers,

Paul


On 19/01/2019 at 19:08, Roland Fechter <fly-fechter@...> wrote:

Thank you, Paul !

What is your location, please ? Do you get your data from 215E Alphasat ??

How big and what kind of dish do you use ?

Do you happen to be able to receive at your location POSITIONAL data of aircraft ?

If so, would you mind to tell me the respective frequencies including Bauds ?

And lastly .......do they show clear, uncoded plain positions, e.g. N.........E........ readable by Planeplotter via Jaero ?

Sorry to bother you again, however your reply to these questions would be most appreciated by me !

Regards,

Roland

Am 18.01.2019 um 12:00 schrieb Paul Gulliver:
Roland,
I suggest you ask these questions in the Plane Plotter group  https://groups.io/g/planeplotter

The following may help




Note that for Alphasat you will need a least an 1.8m or 2.4m dia dish to get a good signal for decoding

Paul


On 18/01/2019 at 10:16, Roland Fechter <fly-fechter@...> wrote:
Hello,
Further to my previous message I now understand that the L-band frequs do not carry positional Information and that the latter can be found on the C-band only..
I am still after positional data which can be made visible by Planeplotter, i.e. the respective locations over oceans etc.
I am sure many of the Aero "fans" know on which frequencies and at which Bauds positional data is transmitted and how to make Planeplotter access and show this data on maps/charts.
Would you kindly disclose to me this information ?
Thanks in advance,
Regards,
Roland


Re: 110A and 4485 - WWVB

Roger
 

Thank you for the information Patrick.
73,
Roger

On Jan 19, 2019, at 1:38 AM, Patrick Lindecker <f6cte@...> wrote:

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen, you
will have all the frequencies (as far as I know them) for all the Multipsk
decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations
decoded by Clock (for example WWVB, see below, extracted from the paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization source
for tens of millions of radio controlled clocks, began operation from its
present location near Fort Collins, Colorado at 0 hours, 0 minutes Universal
Time on July 5, 1963. Thus, the year 2013 marked the station’s 50th
anniversary, a half century of delivering frequency and time signals
referenced to the national standard to the United States public. One of the
best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras. Based
on technology that was already mature and well established when the station
began broadcasting in 1963, WWVB later benefitted from the miniaturization
of electronics and the advent of the microprocessor, which made low cost
radio controlled clocks possible that would work indoors. "

73
Patrick


-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : samedi 19 janvier 2019 00:16
À : multipsk@groups.io
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where stations
are transmitting the submodes that Multipsk can decode? LF stations that can
be received in west coast Canada would be best.
Thank you.



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus



Re: 110A and 4485 - WWVB

Roger
 

Patrick,

Do I understand correctly that to use the 110A mode in Multipsk the soundcard must be (or optimally should be) running at 12000 Hz sampling rate? Or are multiples of that OK (e.g. 48,000, 96,000)?

Thank you.

Roger

On Jan 19, 2019, at 1:38 AM, Patrick Lindecker <f6cte@...> wrote:

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen, you
will have all the frequencies (as far as I know them) for all the Multipsk
decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations
decoded by Clock (for example WWVB, see below, extracted from the paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization source
for tens of millions of radio controlled clocks, began operation from its
present location near Fort Collins, Colorado at 0 hours, 0 minutes Universal
Time on July 5, 1963. Thus, the year 2013 marked the station’s 50th
anniversary, a half century of delivering frequency and time signals
referenced to the national standard to the United States public. One of the
best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras. Based
on technology that was already mature and well established when the station
began broadcasting in 1963, WWVB later benefitted from the miniaturization
of electronics and the advent of the microprocessor, which made low cost
radio controlled clocks possible that would work indoors. "

73
Patrick


-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : samedi 19 janvier 2019 00:16
À : multipsk@groups.io
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where stations
are transmitting the submodes that Multipsk can decode? LF stations that can
be received in west coast Canada would be best.
Thank you.



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus



Re: 110A and 4485 - WWVB

Patrick Lindecker
 

Hello Roger,

12000 Hz is the internal sampling frequency. Modern cards are 48 KHz sampling frequency and not 44,1 KHz as 20 years before. They are now, in general, quite precise.

You can test your sound card: click on the "Adjustments" menu button, select the "Determination of the RX/TX sound-card sampling frequencies" option and push on the "Determination of the 48 KHz RX sampling frequency (test on 3 minutes)" button.
If the sampling frequency is close to 48000 Hz, better is to select 48000 Hz.

At the end of the test, click on "Return".

73
Patrick

-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : mercredi 23 janvier 2019 02:03
À : multipsk@groups.io
Objet : Re: [multipsk] 110A and 4485 - WWVB

Patrick,

Do I understand correctly that to use the 110A mode in Multipsk the soundcard must be (or optimally should be) running at 12000 Hz sampling rate? Or are multiples of that OK (e.g. 48,000, 96,000)?

Thank you.

Roger

On Jan 19, 2019, at 1:38 AM, Patrick Lindecker <f6cte@...> wrote:

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen,
you will have all the frequencies (as far as I know them) for all the
Multipsk decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations
decoded by Clock (for example WWVB, see below, extracted from the
paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization
source for tens of millions of radio controlled clocks, began
operation from its present location near Fort Collins, Colorado at 0
hours, 0 minutes Universal Time on July 5, 1963. Thus, the year 2013
marked the station’s 50th anniversary, a half century of delivering
frequency and time signals referenced to the national standard to the
United States public. One of the best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras.
Based on technology that was already mature and well established when
the station began broadcasting in 1963, WWVB later benefitted from the
miniaturization of electronics and the advent of the microprocessor,
which made low cost radio controlled clocks possible that would work indoors. "

73
Patrick


-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de
Roger Envoyé : samedi 19 janvier 2019 00:16 À : multipsk@groups.io
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where
stations are transmitting the submodes that Multipsk can decode? LF
stations that can be received in west coast Canada would be best.
Thank you.



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus



Re: 110A and 4485 - WWVB

Roger
 

Thank you for clarifying Patrick.

I understand that the 12000 Hz sampling rate is used internally by Multipsk for the 110A mode but that my soundcard can be running in 48000 (or I presume 96000) sampling rate while using Multipsk for that mode.

I ran the “Determination…” test you mention, with a good result.

73,
Roger

On Jan 23, 2019, at 10:57 AM, Patrick Lindecker <f6cte@...> wrote:

Hello Roger,

12000 Hz is the internal sampling frequency. Modern cards are 48 KHz sampling frequency and not 44,1 KHz as 20 years before. They are now, in general, quite precise.

You can test your sound card: click on the "Adjustments" menu button, select the "Determination of the RX/TX sound-card sampling frequencies" option and push on the "Determination of the 48 KHz RX sampling frequency (test on 3 minutes)" button. 
If the sampling frequency is close to 48000 Hz, better is to select 48000 Hz.

At the end of the test, click on "Return".

73
Patrick



-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : mercredi 23 janvier 2019 02:03
À : multipsk@groups.io
Objet : Re: [multipsk] 110A and 4485 - WWVB

Patrick,

Do I understand correctly that to use the 110A mode in Multipsk the soundcard must be (or optimally should be) running at 12000 Hz sampling rate? Or are multiples of that OK (e.g. 48,000, 96,000)?

Thank you.

Roger

On Jan 19, 2019, at 1:38 AM, Patrick Lindecker <f6cte@...> wrote:

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen, 
you will have all the frequencies (as far as I know them) for all the 
Multipsk decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or 
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations 
decoded by Clock (for example WWVB, see below, extracted from the 
paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization 
source for tens of millions of radio controlled clocks, began 
operation from its present location near Fort Collins, Colorado at 0 
hours, 0 minutes Universal Time on July 5, 1963. Thus, the year 2013 
marked the station’s 50th anniversary, a half century of delivering 
frequency and time signals referenced to the national standard to the 
United States public. One of the best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras. 
Based on technology that was already mature and well established when 
the station began broadcasting in 1963, WWVB later benefitted from the 
miniaturization of electronics and the advent of the microprocessor, 
which made low cost radio controlled clocks possible that would work indoors. "

73
Patrick


-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de 
Roger Envoyé : samedi 19 janvier 2019 00:16 À : multipsk@groups.io 
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where 
stations are transmitting the submodes that Multipsk can decode? LF 
stations that can be received in west coast Canada would be best.
Thank you.



---
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus










Re: 110A and 4485 - WWVB

Patrick Lindecker
 

>I ran the “Determination…” test you mention, with a good result.

So select 48000 Hz.

 

Multipsk internally will divide the sampling frequency (48000) by 4 to obtain 12000 Hz.

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : mercredi 23 janvier 2019 22:26
À : multipsk@groups.io
Objet : Re: [multipsk] 110A and 4485 - WWVB

 

Thank you for clarifying Patrick.

 

I understand that the 12000 Hz sampling rate is used internally by Multipsk for the 110A mode but that my soundcard can be running in 48000 (or I presume 96000) sampling rate while using Multipsk for that mode.

 

I ran the “Determination…” test you mention, with a good result.

 

73,

Roger



On Jan 23, 2019, at 10:57 AM, Patrick Lindecker <f6cte@...> wrote:

 

Hello Roger,

12000 Hz is the internal sampling frequency. Modern cards are 48 KHz sampling frequency and not 44,1 KHz as 20 years before. They are now, in general, quite precise.

You can test your sound card: click on the "Adjustments" menu button, select the "Determination of the RX/TX sound-card sampling frequencies" option and push on the "Determination of the 48 KHz RX sampling frequency (test on 3 minutes)" button. 
If the sampling frequency is close to 48000 Hz, better is to select 48000 Hz.

At the end of the test, click on "Return".

73
Patrick



-----Message d'origine-----
De : 
multipsk@groups.io [mailto:multipsk@groups.io] De la part de Roger
Envoyé : mercredi 23 janvier 2019 02:03
À : 
multipsk@groups.io
Objet : Re: [multipsk] 110A and 4485 - WWVB

Patrick,

Do I understand correctly that to use the 110A mode in Multipsk the soundcard must be (or optimally should be) running at 12000 Hz sampling rate? Or are multiples of that OK (e.g. 48,000, 96,000)?

Thank you.

Roger


On Jan 19, 2019, at 1:38 AM, Patrick Lindecker <f6cte@...> wrote:

Roger and all,

If you click on the "Frequencies" command on top of the RX/TX screen, 
you will have all the frequencies (as far as I know them) for all the 
Multipsk decoded modes.

For 4485 it is only transmitted a repeated test sentence (by French or 
Italian navy if I remember well). Nothing really exciting.

For LF transmissions, apart from Multipsk, you have also time stations 
decoded by Clock (for example WWVB, see below, extracted from the 
paper from

"WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio").

"NIST radio station WWVB, which today serves as the synchronization 
source for tens of millions of radio controlled clocks, began 
operation from its present location near Fort Collins, Colorado at 0 
hours, 0 minutes Universal Time on July 5, 1963. Thus, the year 2013 
marked the station’s 50th anniversary, a half century of delivering 
frequency and time signals referenced to the national standard to the 
United States public. One of the best known and most widely used measurement services provided by the U. S.
government, WWVB has spanned and survived numerous technological eras. 
Based on technology that was already mature and well established when 
the station began broadcasting in 1963, WWVB later benefitted from the 
miniaturization of electronics and the advent of the microprocessor, 
which made low cost radio controlled clocks possible that would work indoors. "

73
Patrick


-----Message d'origine-----
De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de 
Roger Envoyé : samedi 19 janvier 2019 00:16 À : multipsk@groups.io 
Objet : [multipsk] 110A and 4485

I would like to try out these modes.
For testing the RX function, does anyone know of frequencies where 
stations are transmitting the submodes that Multipsk can decode? LF 
stations that can be received in west coast Canada would be best.
Thank you.



---
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Re: New site to CPDLC

JetDX
 

Dani,

This is great, thanks for providing the website and SATCOM feeds ! 

Just wondering if there any way you can change the output so that the origin of the CPDLC messages are displayed as well ?

It would make it a lot easier to follow if you could see what controlling agency was sending the CPDLC message.

The first part of the message, eg:  /YQXE2YA.AT1. 

DX








 


Re: New site to CPDLC

MadMike
 

Hi DX,

I used to work for SITA some years ago and the 7 character code at the beginning of these messages was then set up as:-
First 3 characters - Origin location in IATA 3 letter code - YQX = Gander
Next 2 characters - Department sending message - often specific to sender, e.g. LL = Lost Luggage
Final 2 characters - Indicate airline or group sending message - XS = SITA, possible YA = Airinc

Regards, Mike Simpson
South Penrith, NSW, Australia


Re: New site to CPDLC

JetDX
 

MadMike,

Thanks for the info. Most of the ATC addresses I've seen end with YA, although I have seen some differences, Shannon ending in XA and Maastricht ending in 7X for example. 

Just to be clear the problem isn't that I don't know what they mean, it's they are not being displayed with the CPDLC messages on the SatRadar24 website. 

The CPDLC messages come out decoded like this. The first part of the message that identifies the station is not displayed.

Header:
Msg ID: 2
Timestamp: 20:26:18
Message data:
CONFIRM ASSIGNED ROUTE

FANS-1/A CPDLC Message:
CPDLC Uplink Message:
Header:
Msg ID: 2
Timestamp: 20:26:18
Message data:
CONFIRM ASSIGNED ROUTE

I'm not sure if this is an issue with the SatRadar24 website or it's a JERO/libacars thing ? Like I say it would be helpful if you could see what agency was sending the message.

It displays this line with the ADS messages okay.

/PIKCPYA.ADS.VP-BBR08030A1812B113266125CB14EA09     <<<<----- this line, can it be added to the CPDLC decoded messages too ? Or just the "PIKCPYA" part.

ADS-C message:
Event contract request:
Contract number: 3
Report when lateral deviation exceeds: 3.000 nm
Report when vertical speed is:

DX