Difference between revisions of "HFDL"

Revision as of 19:22, 17 January 2016

Please see the SigIDWiki definition for HFDL for a technical description, software and additional information

PC-HFDL

PC-HFDL is a Windows software to decode HFDL data traffic and has been written by Charles Brain. Just feed the HF receiver speaker's output into the soundcard of a Windows PC. It can be downloaded from the HFDL Yahoo group.

PC-HFDL screen

The best monitoring results will be achieved with the following PC-HFDL settings:

PREAM ON - to control the audio offset of the receiver
SPDU OFF - only needed temporarily ON to see the squitters of a new unknown ground station
MPDU ON - see the MPDU packets
LPDU ON - see the LPDUs within the MPDUs
BDU ON - see the BDUs
VERB ON - see more details
HFNPDU ON - see the routine position reports
HEX OFF - only needed for debugging purposes

So in short, with all options ON except SPDU and HEX, the complete session can be seen: LOG-ON of the aircraft to the ground station giving its 24bit ICAO-ID, the assignment of the 1byte sequence ID number to the given ICAO-ID by the ground station referenced in all subsequent traffic, clear distinction of MPDU packets containing more than just one LPDU, and full traffic details.

The HFDL Yahoo group can be found here. Version 2.042 can be downloaded from this stub page

The .dat file that can be used with the registered version of PC-HFDL can be had by joining the HFDL Yahoo group and requesting one via private mail. It will NOT work with the free version.

@@ Line 1: / Line 1: @@
-==What is HFDL?==
+Please see the SigIDWiki definition for [http://www.sigidwiki.com/wiki/High_Frequency_Data_Link_(HFDL) HFDL] for a technical description, software and additional information
-HFDL is a HF data link protocol, defined in [http://www.arinc.com ARINC] spec 635-3.  The HFDL service is operated by Rockwell Collins (since 2014) through a worldwide network of HF stations. See this [http://www.udxf.nl/What%20Is%20HFDL.pdf PDF file] from the UDXF for more.
+==PC-HFDL==
-* Transmissions on HF are in USB on a sub carrier of 1440 Hz with a symbol speed of 1800 baud.
-* Modulation is 2-[[PSK]], 4-PSK or 8-PSK with effective bit rates of 300, 600, 1200 or 1800 bits/sec.
-This topic can be discussed in our
-[http://forums.radioreference.com/shortwave-data-decoding SW Data Decoding] forum.
-==Current Usage==
-This mode is utilized exclusively by fixed aeronautical stations in communications with planes, often at great distances - too far for VHF radio to accomplish. See the Related Links section for a link to a list of frequencies and sites.
-==Synonyms==
-* HF ACARS
-* HF Datalink
-* ARINC 635
-==Decoders==
-===PC-HFDL===
 PC-HFDL is a Windows software to decode HFDL data traffic and has been written by Charles Brain. Just feed the HF receiver speaker's output into the soundcard of a Windows PC. It can be downloaded from the [https://groups.yahoo.com/neo/groups/hfdl/info HFDL Yahoo group].
@@ Line 41: / Line 21: @@
 The HFDL Yahoo group can be found [http://groups.yahoo.com/group/hfdl/ here]. Version 2.042 can be downloaded from this stub [http://www.chbrain.dircon.co.uk/ page]
+The .dat file that can be used with the registered version of PC-HFDL can be had by joining the [https://groups.yahoo.com/neo/groups/hfdl/info HFDL Yahoo group] and requesting one via private mail. It will NOT work with the free version.
-=== Other software that can decode HFDL ===
-; Hobby Level Software
-* [http://www.hoka.net/products/code3-32p.html Hoka Code 3-32P]
-* [http://www.hoka.com/products/code300-32-p.html Hoka Code 300-32P]
-* [http://f6cte.free.fr/index_anglais.htm MultiPSK]
-* [http://www.coaa.co.uk/planeplotter.htm PlanePlotter] (Not a decoder but will show aircraft decoded by PC-HFDL)
-* [http://www.saharlow.com/technology/sigmira/index.htm Sigmira]
-* [http://www.pervisell.com/ham/skysweeper/skysweep.html SkySweeper]
-* [http://www.radioaficion.com/HamNews/archivo/vagabundos-del-dial/5814-sorcerer-decoder.html Sorcerer]
-** '''Note:''' It has been recently discussed on the UDXF Yahoo group that Sorcerer is using an old freq/site list - you may get correct decodes, but not correct site IDs
-; Professional Equipment/Software
-* [http://www.go2signals.ch/products/go2decode/ go2decode]
-* go2monitor
-* [http://www.hoka.com/products/code300-32/standard-version.html Hoka 300-32]
-* [http://www.comintconsulting.com/krypto500/ Krypto 500]
-* Many of the newer [http://www.computer-int.com/wa.htm WaveCom] modems
-* [http://www.computer-int.com/WA-WCode.htm Wavecom W-Code]
-*[http://www.wavecom.ch/w-spectra.php Wavecom W-Spectra]
-==Audio Example and Waveform==
-* See this [http://www.sigidwiki.com/wiki/High_Frequency_Data_Link_(HFDL) entry] from the Signals Indentification wiki
-* [http://sferix.myweb.hinet.net/hfasia/files/HFDL.html HFDL Waveform]
-==Related Links==
-*The current version (Sept. 5 2014) of the HFDL database table is 49. It's available from the UDXF Modes page [http://www.udxf.nl/HFDL-ACARS-VDL2.pdf here] in PDF.
-*The .dat file that can be used with the registered version of PC-HFDL can be had by joining the PC-HFDL Yahoo group and requesting one via private mail. It will NOT work with the free version.
-* [http://www.shoc.ch/manuals/nethelp_go2m/index.html#!hfdl.htm go2Monitor HFDL Description]

Difference between revisions of "HFDL"

From The RadioReference Wiki

Revision as of 19:22, 17 January 2016

PC-HFDL