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| − | ==Overview==
| + | #REDIRECT [[HF Aeronautical Communications]] |
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| − | HFDL is a HF data link protocol, defined in [http://www.arinc.com ARINC] spec 635-3. The HFDL service is operated by ARINC as GLOBALink service through a worldwide network of HF stations.
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| − | | |
| − | The name is somewhat misleading, as HFDL actually describes a class of data signals; it is also referred to as HF [[ACARS]].
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| − | | |
| − | * Transmissions on HF are in USB on a sub carrier of 1440 Hz with a symbol speed of 1800 baud.
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| − | * Modulation is 2-[[PSK]], 4-PSK or 8-PSK with effective bit rates of 300, 600, 1200 or 1800 bits/sec.
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| − | | |
| − | ==PC-HFDL==
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| − | | |
| − | 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 listed below.
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| − | | |
| − | [[Image:pchfdl_screenshot.jpg|thumb|PC-HFDL screen]]
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| − | The best monitoring results will be achieved with the following PC-HFDL settings:
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| − | | |
| − | * PREAM ON - to control the audio offset of the receiver
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| − | * SPDU OFF - only needed temporarily ON to see the squitters of a new unknown ground station
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| − | * MPDU ON - see the MPDU packets
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| − | * LPDU ON - see the LPDUs within the MPDUs
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| − | * BDU ON - see the BDUs
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| − | * VERB ON - see more details
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| − | * HFNPDU ON - see the routine position reports
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| − | * HEX OFF - only needed for debugging purposes
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| − | | |
| − | 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.
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| − | The HFDL Yahoo group can be found [http://groups.yahoo.com/group/hfdl/ here]. Version 2.042 (which '''is''' Vista compatible) can be downloaded from this stub [http://www.chbrain.dircon.co.uk/download/PC-HFDL%202.042%20Setup.zip page]
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| − | | |
| − | ===Other Packages known to support HFDL===
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| − | * [http://www.hoka.net/old_product/code30/code30uk.htm Hoka Code30/A]
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| − | * [http://www.hoka.net/old_product/code300/code300uk.htm Hoka Code 300/A]
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| − | * [http://www.hoka.net/code300-32/code300-32.htm Hoka 300-32]
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| − | * [http://www.monteriallc.com/centurion/centurion_feat.htm Monteria Centurion]
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| − | * [http://www.skysweep.com Skysweeper]
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| − | * [http://www.wavecom.ch/w61PC.htm Wavecom W61PC]
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| − | * [http://www.wavecom.ch/W61LAN.htm Wavecom W61LAN]
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| − | | |
| − | ==Frequencies in Use==
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| − | Thanks to MT Utility World which had the text link. New entries are in '''bold'''<br>
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| − | ARINC System Table 34
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| − | {| border="1" cellpadding="3" style="vertical-align:top;BORDER-COLLAPSE: collapse" colspan="2"
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| − | ! Node ID
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| − | ! Xmtr Name
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| − | ! 1
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| − | ! 2
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| − | ! 3
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| − | ! 4
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| − | ! 5
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| − | ! 6
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| − | ! 7
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| − | ! 8
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| − | ! 9
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| − | ! 10
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| − | ! 11
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| − | ! 12
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| − | ! 13
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| − | ! 14
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| − | ! 15
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| − | ! 16
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| − | ! 17
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| − | ! 18
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| − | ! 19
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| − | ! 20
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| − | |-
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| − | |01
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| − | |San Francisco CA
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| − | | 21934
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| − | | 17919
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| − | | 13276
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| − | | 11327
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| − | | 10081
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| − | | 8927
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| − | | 6559
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| − | | 5508
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| − | | 4672
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| − | | 2947
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| − | ||||||||||
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| − | |-
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| − | |02
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| − | |Molokai, HI
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| − | | 21937
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| − | | 21928
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| − | | 17934
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| − | | 17919
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| − | | '''13324'''
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| − | | '''13312'''
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| − | | 13276
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| − | | 11348
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| − | | 11312
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| − | | 10081
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| − | | 8936
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| − | | 8912
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| − | | '''6565'''
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| − | | 6559
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| − | | '''5514'''
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| − | | '''5463'''
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| − | | '''4687'''
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| − | | 3434
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| − | | 3019
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| − | | 2947
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| − | |-
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| − | |03
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| − | |Reykjavik, ISL
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| − | | 17985
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| − | | 15025
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| − | | 11184
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| − | | 8977
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| − | | 6712
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| − | | 5720
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| − | | 3900
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| − | | 3116
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| − | ||||||||||||
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| − | |-
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| − | |04
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| − | |Riverhead, NY
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| − | | 21934
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| − | | 21931
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| − | | 17952
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| − | | 17934
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| − | | 17919
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| − | | 13276
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| − | | 11387
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| − | | 11354
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| − | | 11315
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| − | | 10027
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| − | | 8912
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| − | | 8885
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| − | | 8831
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| − | | 6661
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| − | | 6652
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| − | | 6646
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| − | | 5652
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| − | | 5523
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| − | | 3428
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| − | | 3410
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| − | |-
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| − | |05
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| − | |Auckland, NZL
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| − | | 21949
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| − | | 17916
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| − | | 13351
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| − | | 11327
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| − | | 10084
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| − | | 8921
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| − | | 6535
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| − | | 5583
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| − | | 3404
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| − | | 3016
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| − | ||||||||||
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| − | |-
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| − | |06
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| − | |Hat Yai, THA
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| − | | 21949
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| − | | 17928
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| − | | 13270
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| − | | 10066
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| − | | 8825
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| − | | 6535
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| − | | 5655
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| − | | 4687
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| − | | 3470
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| − | |||||||||||
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| − | |-
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| − | |07
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| − | |Shannon, IRL
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| − | | 11384
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| − | | 10081
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| − | | 8942
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| − | | 8843
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| − | | 6532
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| − | | 5547
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| − | | 3455
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| − | | 2998
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| − | ||||||||||||
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| − | |-
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| − | |08
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| − | |Johannesburg, AFS
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| − | | 21949
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| − | | 13321
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| − | | 8834
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| − | | 4681
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| − | | 3016
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| − | |||||||||||||||
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| − | |-
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| − | |09
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| − | |Barrow, AK
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| − | | 21937
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| − | | 21928
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| − | | 17934
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| − | | 17919
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| − | | 11354
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| − | | 10093
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| − | | 10027
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| − | | 8936
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| − | | 8927
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| − | | 6646
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| − | | 5544
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| − | | 5538
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| − | | 5529
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| − | | 4687
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| − | | 4654
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| − | | 3497
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| − | | 3007
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| − | | 2992
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| − | | 2944
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| − | |-
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| − | |'''11'''
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| − | |'''Albrook PAN'''
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| − | | '''21940'''
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| − | | '''17901'''
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| − | | '''10063'''
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| − | | '''6589'''
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| − | | '''5589'''
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| − | | '''2902'''
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| − | |||||||||||||||
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| − | |-
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| − | |13
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| − | |Santa Cruz, BOL
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| − | | 21997
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| − | | 21988
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| − | | 21973
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| − | | 21946
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| − | | 17916
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| − | | 13315
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| − | | 11318
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| − | | 8957
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| − | | 6628
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| − | | 4660
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| − | | 3467
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| − | | 2983
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| − | ||||||||
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| − | |-
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| − | |14
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| − | |Krasnoyarsk, RUS
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| − | | 21990
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| − | | 17912
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| − | | 13321
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| − | | 10087
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| − | | 8886
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| − | | 6596
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| − | | 5622
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| − | | 4679
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| − | | 2905
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| − | | 2878
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| − | ||||||||||
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| − | |-
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| − | |15
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| − | |Al Muharraq, BHR
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| − | | 21982
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| − | | 17967
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| − | | 13354
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| − | | 11312
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| − | | 10075
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| − | | 8885
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| − | | 5544
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| − | | 2986
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| − | ||||||||||||
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| − | |-
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| − | |16
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| − | |Agana, GUM
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| − | | 17919
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| − | | 13312
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| − | | 11306
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| − | | 11288
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| − | | 8927
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| − | | 6652
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| − | | 5451
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| − | |||||||||||||
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| − | |-
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| − | |17
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| − | |Telde, Gran Canaria, CNR
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| − | | 21955
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| − | | 17928
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| − | | 13303
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| − | | 11348
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| − | | 8948
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| − | | 6529
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| − | | 5589
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| − | | 2905
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| − | ||||||||||||
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| − | |-
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| − | |}
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| − | | |
| − | | |
| − | [[Category:Aircraft Monitoring]]
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| − | [[Category:HF Topics]] | |