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New release of MULTIPSK (4.35) (M10 radiosonde)

Patrick Lindecker
 

New release of MULTIPSK (4.35)

 

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 release of MultiPSK (4.35) is on my Web site (http://f6cte.free.fr).
The mirror site is Earl's, N8KBR: 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: e2737b1791476f9f5c9490edba6c1b86

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

 

The main improvements of MULTIPSK 4.35 are the following:

 

M10 radiosondes decoding

 

The M10 radiosonde is in service since 2010 (and present in 60 countries). It equips the weather balloons used in meteorology. It is a small box equiped with sensors, a GPS receiver (for its position) and a transmitter for data transmission, this one being done according to a mode poorly documented.

It is possible to monitor these radiosondes up to a range of 600 km, according to the reception equipment, whereas the weather balloons can travel up to 300 km, in general. It has to be noted that the balloons launches are done at fixed time. One or two launches are done each day.

 

For Hams and SWL, the M10 signal can be received:

·                     either from the discriminator output of a classical UHF FM receiver via a direct connection to the PC sound card. However, the receiver must have a large reception bandwidth due to the high modulation speed,

·                     or with a SdR receiver (FunCube Dongle, RTL SDR,...) and directly demodulated by Multipsk. It is the most simple solution.

 

Note 1: Multipsk decodes the radiosonde position but not the telemetry (temperature, pressure etc).

 

Note 2: if you are not too far from Paris, you can test the decoding on the M10 radiosonde sent by the Trappes station, on 401 MHz between 11h30 and 12h30 UTC.

 

This mode is available for licencied copies, only (otherwise, the decoding is stopped after 5 minutes).

 

See general specifications further on.

 

 

Other improvements:

·                     In SELCAL, possibility to use the data file ("SELCAL_DICTIONARY.txt").

·                     Protocol SDR TCP/IP interface V. 1 preliminary
The goal of this preliminary protocol is to test the possibility to interface SdR transceivers (RX/TX), the "official" version remaining the 0.1 one (for RX only).
For developers, the different files necessary are available at the following WEB address:
http://f6cte.free.fr/SDR_TCP_IP_INTERFACE_Version_1_preliminary.ZIP

 

 

Note about TLE files: if you use the "Satellites" option, don't forget to download

(with the "Downloading" button) the 5 recent TLE files (amateur.txt, argos.txt, orbcomm.txt, stations.txt, weather.txt).

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.34.1 version of Multipsk has been completely translated to Spanish by Joachin (EA4ZB), from French. The translation file is on my Web site (http://f6cte.free.fr/Translation_files.htm).

 

73

Patrick

 

Description of the M10 mode

 

Baud rate: 9600 symbols/second.

 

Modulation : PSK. Each symbol is a bit of a double-bit. A double-bit expresses a "1" if both bits are out of phase and a "0" if they are of the same polarity. It is a code close to the differential Manchester one or the Miller one.

 

Reception mode: FM

 

Bandwidth : about 8 KHz (in base band)

 

Demodulation : not coherent

 

Synchronization for bits: automatic using the signal and for double-bits: by testing both possibilities.

 

Detection code: yes on 16 bits (Synchronization+Header).

 

Interleaving : no

 

Each M10 frame contains different blocks:

·                     a block of 8 double-bits "Synchronization" followed by a block of 8 double-bits "Header" always the same 0000000011111000),

·                     a block of 24 double-bits "Sonde-Header" which varies (unknown reason),

·                     an information block containing time, date, position....,

·                     a checksum.

 

73

Patrick

 

 

 




Avast logo

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


Siegfried Jackstien
 

please ... add the rs41 :-)

dg9bfc

sigi

ps drop me a mail if you need further info abt the rs41


Am 13.06.2018 um 16:41 schrieb Patrick Lindecker:

New release of MULTIPSK (4.35)

 

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 release of MultiPSK (4.35) is on my Web site (http://f6cte.free.fr).
The mirror site is Earl's, N8KBR: 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: e2737b1791476f9f5c9490edba6c1b86

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

 

The main improvements of MULTIPSK 4.35 are the following:

 

M10 radiosondes decoding

 

The M10 radiosonde is in service since 2010 (and present in 60 countries). It equips the weather balloons used in meteorology. It is a small box equiped with sensors, a GPS receiver (for its position) and a transmitter for data transmission, this one being done according to a mode poorly documented.

It is possible to monitor these radiosondes up to a range of 600 km, according to the reception equipment, whereas the weather balloons can travel up to 300 km, in general. It has to be noted that the balloons launches are done at fixed time. One or two launches are done each day.

 

For Hams and SWL, the M10 signal can be received:

·                     either from the discriminator output of a classical UHF FM receiver via a direct connection to the PC sound card. However, the receiver must have a large reception bandwidth due to the high modulation speed,

·                     or with a SdR receiver (FunCube Dongle, RTL SDR,...) and directly demodulated by Multipsk. It is the most simple solution.

 

Note 1: Multipsk decodes the radiosonde position but not the telemetry (temperature, pressure etc).

 

Note 2: if you are not too far from Paris, you can test the decoding on the M10 radiosonde sent by the Trappes station, on 401 MHz between 11h30 and 12h30 UTC.

 

This mode is available for licencied copies, only (otherwise, the decoding is stopped after 5 minutes).

 

See general specifications further on.

 

 

Other improvements:

·                     In SELCAL, possibility to use the data file ("SELCAL_DICTIONARY.txt").

·                     Protocol SDR TCP/IP interface V. 1 preliminary
The goal of this preliminary protocol is to test the possibility to interface SdR transceivers (RX/TX), the "official" version remaining the 0.1 one (for RX only).
For developers, the different files necessary are available at the following WEB address:
http://f6cte.free.fr/SDR_TCP_IP_INTERFACE_Version_1_preliminary.ZIP

 

 

Note about TLE files: if you use the "Satellites" option, don't forget to download

(with the "Downloading" button) the 5 recent TLE files (amateur.txt, argos.txt, orbcomm.txt, stations.txt, weather.txt).

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.34.1 version of Multipsk has been completely translated to Spanish by Joachin (EA4ZB), from French. The translation file is on my Web site (http://f6cte.free.fr/Translation_files.htm).

 

73

Patrick

 

Description of the M10 mode

 

Baud rate: 9600 symbols/second.

 

Modulation : PSK. Each symbol is a bit of a double-bit. A double-bit expresses a "1" if both bits are out of phase and a "0" if they are of the same polarity. It is a code close to the differential Manchester one or the Miller one.

 

Reception mode: FM

 

Bandwidth : about 8 KHz (in base band)

 

Demodulation : not coherent

 

Synchronization for bits: automatic using the signal and for double-bits: by testing both possibilities.

 

Detection code: yes on 16 bits (Synchronization+Header).

 

Interleaving : no

 

Each M10 frame contains different blocks:

·                     a block of 8 double-bits "Synchronization" followed by a block of 8 double-bits "Header" always the same 0000000011111000),

·                     a block of 24 double-bits "Sonde-Header" which varies (unknown reason),

·                     an information block containing time, date, position....,

·                     a checksum.

 

73

Patrick

 

 

 




Avast logo

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



Patrick Lindecker
 

Hello Sigi,

 

Unfortunatly there is no RS41 launched around Paris (as far as I know) so no possibility to listen to it…

 

73

Patrick

 

De : main@digitalradio.groups.io [mailto:main@digitalradio.groups.io] De la part de Siegfried Jackstien
Envoyé : jeudi 14 juin 2018 16:06
À : main@digitalradio.groups.io
Objet : Re: [digitalradio] New release of MULTIPSK (4.35) (M10 radiosonde)

 

please ... add the rs41 :-)

dg9bfc

sigi

ps drop me a mail if you need further info abt the rs41

 

Am 13.06.2018 um 16:41 schrieb Patrick Lindecker:

New release of MULTIPSK (4.35)

 

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 release of MultiPSK (4.35) is on my Web site (http://f6cte.free.fr).
The mirror site is Earl's, N8KBR: 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: e2737b1791476f9f5c9490edba6c1b86

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

 

The main improvements of MULTIPSK 4.35 are the following:

 

M10 radiosondes decoding

 

The M10 radiosonde is in service since 2010 (and present in 60 countries). It equips the weather balloons used in meteorology. It is a small box equiped with sensors, a GPS receiver (for its position) and a transmitter for data transmission, this one being done according to a mode poorly documented.

It is possible to monitor these radiosondes up to a range of 600 km, according to the reception equipment, whereas the weather balloons can travel up to 300 km, in general. It has to be noted that the balloons launches are done at fixed time. One or two launches are done each day.

 

For Hams and SWL, the M10 signal can be received:

·                     either from the discriminator output of a classical UHF FM receiver via a direct connection to the PC sound card. However, the receiver must have a large reception bandwidth due to the high modulation speed,

·                     or with a SdR receiver (FunCube Dongle, RTL SDR,...) and directly demodulated by Multipsk. It is the most simple solution.

 

Note 1: Multipsk decodes the radiosonde position but not the telemetry (temperature, pressure etc).

 

Note 2: if you are not too far from Paris, you can test the decoding on the M10 radiosonde sent by the Trappes station, on 401 MHz between 11h30 and 12h30 UTC.

 

This mode is available for licencied copies, only (otherwise, the decoding is stopped after 5 minutes).

 

See general specifications further on.

 

 

Other improvements:


·                     In SELCAL, possibility to use the data file ("SELCAL_DICTIONARY.txt").


·                     Protocol SDR TCP/IP interface V. 1 preliminary
The goal of this preliminary protocol is to test the possibility to interface SdR transceivers (RX/TX), the "official" version remaining the 0.1 one (for RX only).
For developers, the different files necessary are available at the following WEB address:
http://f6cte.free.fr/SDR_TCP_IP_INTERFACE_Version_1_preliminary.ZIP

 

 

Note about TLE files: if you use the "Satellites" option, don't forget to download

(with the "Downloading" button) the 5 recent TLE files (amateur.txt, argos.txt, orbcomm.txt, stations.txt, weather.txt).

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.34.1 version of Multipsk has been completely translated to Spanish by Joachin (EA4ZB), from French. The translation file is on my Web site (http://f6cte.free.fr/Translation_files.htm).

 

73

Patrick

 

Description of the M10 mode

 

Baud rate: 9600 symbols/second.

 

Modulation : PSK. Each symbol is a bit of a double-bit. A double-bit expresses a "1" if both bits are out of phase and a "0" if they are of the same polarity. It is a code close to the differential Manchester one or the Miller one.

 

Reception mode: FM

 

Bandwidth : about 8 KHz (in base band)

 

Demodulation : not coherent

 

Synchronization for bits: automatic using the signal and for double-bits: by testing both possibilities.

 

Detection code: yes on 16 bits (Synchronization+Header).

 

Interleaving : no

 

Each M10 frame contains different blocks:

·                     a block of 8 double-bits "Synchronization" followed by a block of 8 double-bits "Header" always the same 0000000011111000),

·                     a block of 24 double-bits "Sonde-Header" which varies (unknown reason),

·                     an information block containing time, date, position....,

·                     a checksum.

 

73

Patrick

 

 

 

 


Avast logo

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