Date   
Space-based ATC service begins this month

Bob
 

Videos of BBC timesync, decode digi modes

Ralf Bender
 

Hello Patrick and all,

to grow my video list on your website :-) , here are a few videos of the last weeks from my little YT Channel.
Maybe some are interesting for someone. 

Multipsk Decode and Sychronize time from BBC broadcast on 198 kHz longwave
https://youtu.be/v00ijoLaWsk
 
DOMINOEX-4 QSO on 20m Shortwave, 25 December 2018, 1003 UTC
https://youtu.be/V0fS_QH9FEY
 
Olivia 32-1000 decode with Multipsk, 22 December 2018, 1025 UTC
https://youtu.be/e_wM_RymlPE
 
Olivia 8-250/16-500 decode with Multipsk, 29 November 2018, around 2100 UTC
https://youtu.be/yp1KPGfQgus
 
MRASZ in memoriam special event station, RTTY, 3591 kHz, 27 November 2018, 2132 UTC
 

Re: LMS6 radiosonde bandwidth setting?

Patrick Lindecker
 

Hello Andy,

 

>That screen gives several options FM 5 Khz, FM 6, and FM 10 m which should I choose ?

The standard is 6 KHz for this mode, as I have supposed that it might not be very different from RS41. But as I have not received any feedback nor SDR file, the decoding is “experimental” (☺).

 

A SDR recording made with Multipsk will be welcome.

 

For the location of Radiosondes sites in USA, see https://www.weather.gov/upperair/nws_upper for more information. LMS6 are used by the big majority of the sites , but I don’t know more about details on launching times, type of RS really used, etc.

 

There is also this note https://www.ecmwf.int/sites/default/files/elibrary/2017/17551-assessment-different-radiosonde-types-20152016.pdf, particularly pages 3 and 4, but this document is a bit old.

 

73

Patrick



 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Andrew OBrien
Envoyé : vendredi 15 mars 2019 02:13
À : multipsk@groups.io
Objet : [multipsk] LMS6 radiosonde bandwidth setting?

 

If I am understanding correctly, to receive  LMS6 radiosonde I should use the I/Q Direct feature in Multipsk .  That screen gives several options FM 5 Khz, FM 6, and FM 10 m which should I choose ?
Andy K3UK




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LMS6 radiosonde bandwidth setting?

Andrew OBrien
 

If I am understanding correctly, to receive  LMS6 radiosonde I should use the I/Q Direct feature in Multipsk .  That screen gives several options FM 5 Khz, FM 6, and FM 10 m which should I choose ?
Andy K3UK

New releases of MULTIPSK (4.39) and Clock (1.11.8)

Patrick Lindecker
 

New release of MULTIPSK (4.39)

 

Hello to all Ham and SWL,

 

The new releases of Clock 1.11.8 and MultiPSK (4.39) are on my Web site (http://f6cte.free.fr/index_anglais.htm).
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: f067765e48c16a056f90003861798aea

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

 

Clock 1.11.8  fixes a bug about the BBC day of week decoding.

 

The main improvements of MULTIPSK 4.39 are the following:

 

403 MHz LMS6 radiosondes decoding (experimental)

 

The LMS6 radiosonde is in service since about 2010. It equips the weather balloons used in meteorology (mainly in USA+Pacific), on the UHF frequencies around 403 MHz. It is a small box of 250 g, equiped with sensors, a GPS receiver (for its position) and a transmitter for data transmission. 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.

 

See https://www.weather.gov/upperair/nws_upper for more information.

 

For Hams and SWL, the LMS6 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: Multipsk decodes the radiosonde position but not the telemetry (temperature, pressure etc).

 

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

 

See general specifications further on.

 

Transmission of positions in real time

 

For several modes receiving positions (APRS, EPRIB, 1382, BIIS and all radiosonde modes), if the "GPS" button is pushed, all the received positions are transmitted, via a $GPGLL or $GPGGA NMEA GPS frame, to any cartography application able to manage GPS frames in real time (as Google Earth). The user must first select a serial port (physical or virtual) in the "Serial port for GPS" menu, on the Configuration screen.

For an application on the same PC, it will be necessary to install a virtual serial link (with the "Com0com" program for example). A serial port will be configured on Multipsk and the other will be scanned by the cartography application.

 

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.38.2 version of Multipsk has been translated to Spanish by Joachin (EA4ZB), from French.

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

 

73

Patrick

 

Description of the LMS6 mode

Baud rate: 4800 symbols/second.

 

Modulation : GFSK ("Gaussian Frequency Shift Frequency").

 

Reception mode: FM

 

Bandwidth : about 5 KHz

 

Demodulation : not coherent

 

Synchronization for bits: automatic using the signal

 

Detection code: yes on a header of 48 bits

 

Interleaving : no

 

Scrambling: no

 

Each LMS6 frame is composed of 4800 bits but only 608 bits are useful for the geographical data. Data is integrated in a convolutional code and a Reed-Solomon code but Multipsk does not take profit of them by lack of details. The decoding is basic, without correction.

 




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Re: Display-Launcher updated

Paul Gulliver
 

This is the download page Display Launcher  http://www.agenetools.com/downloads-2.html

Paul


On 14/03/2019 at 15:55, pelix21 <mauro.pelissetti@...> wrote:
Hi Mike
I tried to download your software for my new PC but the domain seems to be disappeared. Any suggestion?  Thanks. Mauro

Re: Display-Launcher updated

pelix21
 

Hi Mike
I tried to download your software for my new PC but the domain seems to be disappeared. Any suggestion?  Thanks. Mauro

#aero #aero

Roland Fechter
 

Hello,
I am very interested to get hold of a functioning Outernet Multi gap patch antenna for receiving aero.
Is there any source available - any dealer, any user having a second copy of it and willing to let me have it for a fair price ?
Unfortunately my expensive LP antenna broke down depriving me of the possibility to receive aero data.
I look forward to your suggestions.
Thanks in advance.
Regards,
Roland
 

Re: inmarsat Acars L-band antenna #Beginner

Roland Fechter
 

Hello, Bill !

Would your kind offer be still valid even today ?

I would gladly bear any resulting costs.

I look forward to your reply.

Regards,

Roland

Am 29.11.2018 um 11:44 schrieb billcoombes:

Hello Roland,

I'm not sure where you are but if you want, I can make you the antenna listed in Paul's reply. The only problem would be getting it to you if you are not in the UK or Europe. Let me know if you want me to.

Kind regards,
Bill - G4ERV

----- Original Message -----
From: "Paul Gulliver" <paulg1953@...>
To: multipsk@groups.io
Date: Thu, 29 Nov 2018 08:28:21 +0000
Subject: Re: [multipsk] inmarsat Acars L-band antenna #Beginner

Hi Roland,
I very much doubt if an antenna designed for 2.4GHz would be suitable for L
band Acars (1.5GHz).
I know you say you are void of any special knowledge for building antenna but
they really are easy so why not have a go.
here is a basic design for a suitable helix but take note the helix must be
wound in the opposite direction to the article if you are using it without a
dish


https://uhf-satcom.com/satellite-reception/l-band


Another point is, L band acars is sent in two modes 10500 bit per second and
1200 bits per second, without a dish you will probably only be able to receive
the 1200 bps mode - that was certainly my case when I was receiving data from
the Alphasat satellite.


Cheers,


Paul


On 28/11/2018 at 14:19, <fly-fechter@...> wrote:
Hallo,

i just found online a circular pol Helix antenna plus an omnidirectional 2.4
GB WLAN antenna.
Both are described as WLAN antennas.
Can these be used also for receiving L-band wacars, please ?
If so, I intend to use with them also a suitable LNA as my coax cable is abt.
20m Long,
my rx is the funcube pro plus dongle.
Kindly advise - thank you very much in advance.
As I am utterly clumsy and void of any special knowledge I have to use a
suitable ready-made antenna,
patch or dish etc. I would appreciate very much your respective
recommendations !
Regards to you all.
Roland









Re: ic-7300 and Multipsk

Patrick Lindecker
 

TKS for the information Philip.

 

73

Patrick

 

De : multipsk@groups.io [mailto:multipsk@groups.io] De la part de Philip
Envoyé : mardi 12 mars 2019 23:32
À : multipsk@groups.io
Objet : Re: [multipsk] ic-7300 and Multipsk

 

You can connect Multipsk to HRD by using HRD Bridge
http://www.dxlabsuite.com/HRD_Bridge
Philip G7JUR




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Re: ic-7300 and Multipsk

Philip
 

You can connect Multipsk to HRD by using HRD Bridge
http://www.dxlabsuite.com/HRD_Bridge
Philip G7JUR

Re: Display-Launcher - for MultiPSK

MadMike
 

Hi heavenzgoat,

I confirm that ACARSDeco-Display is not working correctly with the latest version of acarsdeco2 - This is because of a change in format in that program. I will post a new version asap.

Regards, Mike Simpson
South Penrith, NSW, Australia


Re: Display-Launcher - for MultiPSK

MadMike
 

Hi Richard,

I was trying to decode AERO 10500b on L-Band using my RSP2, with no luck either on SDR# or MultiPSK. However I have now tried using a RTL-SDR dongle direct into MultiPSK and it is decoding fine in MultiPSK and when saving the QSO at 20sec intervals AERO-Display works fine.

The QSO file you sent me direct also worked fine when entered into AERO-Display using the 'Read old QSO file' button. The only problem I did notice is that I have not included an option in this module to select U.S. Date format, so on certain days of the month it might fail due incorrect/invalid dates.

I will send an update asap.

Regards, Mike Simpson
South Penrith, NSW, Australia


Paper "Etude des transmissions par ultrasons"

Patrick Lindecker
 

Hello,

 

For francophone’s possibly interested, I have uploaded my last paper “Etude des transmissions par ultrasons” (“Study of ultrasound transmissions”), issued in the “Dan OM” Ham revue.

It is available there: http://f6cte.free.fr/Transmissions_par_ultrasons_Rev_A.pdf

 

73

Patrick




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Multipsk 4.38.2 translated to Spanish

Patrick Lindecker
 

Hello to all Spanish native speakers,

 

The 4.38.2 version of Multipsk has been completely translated to Spanish by Joachin (EA4ZB), from French. The links to the translation file and to the manual (AIDE_PSK.CHM) in Spanish are on my Web site (http://f6cte.free.fr/Translation_files.htm).

 

Note that for a new CHM file (as here the AIDE_PSK.CHM file):

 

"

Sometimes .CHM files are flagged (by Windows) as downloaded from an untrusted source such as the Internet.

 

To resolve this issue, carry out the following steps:

 

1.       Right-click the .CHM file and choose Properties

 

2.       On the General tab, click the button labeled "Unblock"

 

3.       Click OK

"

 

73

Patrick

 

 




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Re: Display-Launcher - for MultiPSK

Richard
 

Hello Mike, 

re: AERO v 1.0.31

I am receiving 10500b AERO signals quite well using the NooElec NESDR Smartee, Outernet patch antenna w/ LNA, Multipsk doing the demod.  However nothing is being displayed on the AERO-Display screens.

Previous v 1.0.20 was working fine.

When I start the program the following error window pops up a few times and if I click through, the program runs but nothing gets displayed:

           "An error - Subscript out of range occurred in the Subroutine Form Load a=13"

Path to Multipsk looks o.k.

Thanks for the new version of Display-Launcher.  I have been testing the GMDSS module the past couple of days.  For several years I have used an older TCP/IP version - like the newer format.


Richard
KE7KRF

Re: Display-Launcher - for MultiPSK

MadMike
 

Thanks for that info, I have not used acarsdeco2 for a while, and did not know that it had changed. I will check that out asap.

Regards, Mike Simpson
South Penrith, NSW, Australia

Original msg:-
Acars-Deco-Display is not working correctly with the current version of acarsdeco2 found here: http://xdeco.org/?page_id=30
I think the location of registration numbers has changed which messes up the parsing. No aircraft details are being shown. Flight numbers seem to be OK.

Re: Display-Launcher - for MultiPSK

heavenzgoat
 

Acars-Deco-Display is not working correctly with the current version of acarsdeco2 found here: http://xdeco.org/?page_id=30
I think the location of registration numbers has changed which messes up the parsing. No aircraft details are being shown. Flight numbers seem to be OK.

Re: Display-Launcher - for MultiPSK

Fred Albertson
 

Thanks, Mike,

That fixed it.

Keep up the good work,

Fred

Re: Display-Launcher - for MultiPSK

Steve Collins
 

Know what you mean Mike. I have written some VB programs and not used a packer but they run ok don’t cause problems. I’ll check it with Malawarebytes and if there are no issues I’ll probably risk it.

 

Best wishes – Steve

 

 

Sent from Mail for Windows 10

 


From: multipsk@groups.io <multipsk@groups.io> on behalf of MadMike <virtualtrains@...>
Sent: Saturday, March 9, 2019 9:46:44 PM
To: multipsk@groups.io
Subject: Re: [multipsk] Display-Launcher - for MultiPSK
 
Hi Steve,

This is becoming standard for a lot of anti-virus programs these days. There is a list somewhere of 'known' .exe files. If an unknown one (DLsetup15.exe only appeared yesterday), then they flag it as unrecognised. You will notice it says 'MIGHT' put your PC at risk.

Unfortunately this now happens for all authors of freeware/shareware programs as there downloads are often too small to get on the 'good list'. It is up to the user to decide if they want to run the program or not. Funny thing is that my copy of Windows Defender did not bring up that notice, I just checked it.

Regards, Mike Simpson
South Penrith, NSW, Australia