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HF ACARS
HF ACARS Stations and Schedules
Station: H01 Dixon, CA, USA Latitude: 38 Deg 13 Min (North) Longitude: 121 Deg 27 Min (West) Freq. StartTime 8927 24 hrs TX2 13276 03:10 17919 17:10 21934 19:10 TX1 Station: H02 Molokai, HA, USA Latitude: 21 Deg 11 Min (North) Longitude: 157 Deg 11 Min (West) Freq. StartTime 11348 24 hrs Tx2 17934 24 hrs Tx1 Station: H03 Reykjavik, Iceland Latitude: 64 Deg 14 Min (North) Longitude: 23 Deg 09 Min (West) Freq. StartTime 11184 24 hrs Tx1 15025 24 hrs Tx2 Station: H04 River Head, NY, USA Latitude: 40 Deg 53 Min (North) Longitude: 72 Deg 38 Min (West) Freq. StartTime 8912 18:55 Tx2 11312 24 hrs Tx1 17919 10:35 21934 12:55 Station: H05 Auckland, New Zealand Latitude: 37 Deg 01 Min (South) Longitude: 174 Deg 48 Min (East) Freq. StartTime 6535 24 hrs Tx2 11327 24 hrs Tx1 Station: H06 Hat Yai, Thailand Latitude: 6 Deg 56 Min (North) Longitude: 100 Deg 24 Min (East) Freq. StartTime 5655 24 hrs Tx2 13309 24 hrs Tx1 Station: H07 Shannon, Ireland Latitude: 52 Deg 44 Min (North) Longitude: 8 Deg 56 Min (West) Freq. StartTime 8843 24 hrs Tx2 11384 24 hrs Tx1 Station: H08 Johannesburg, South Africa Latitude: 26 Deg 08 Min (South) Longitude: 28 Deg 12 Min (East) Freq. StartTime 8834 15:15 Tx1 13321 24 hrs Tx2 21949 05:25 Station: H10 Annapolis, MD, USA Latitude: 38 Deg 57 Min (North) Longitude: 76 Deg 34 Min (West) Freq. StartTime 8885 24 hrs Tx1 Station: H12 Anchorage, Alaska, USA Latitude: 61 Deg 10 Min (North) Longitude: 150 Deg 00 Min (West) Freq. StartTime 11354 24 hrs Tx1
Some other HF ACARS frequencies that may be active:
KXH6: Molokai Ranch, Kahalelani, Hawaii 2878, 2947, 2995, 3001, 3007, 3019, 3410, 3428, 3434, 3497, 4654, 4672, 4687, 5463, 5508, 5514, 5523, 5529, 5538, 5544, 5610, 5652, 5661, 6538, 6559, 6565, 6610, 6634, 6646, 6652, 8885, 8912, 8927, 8936, 10027, 10081, 10084, 10093, 11312, 11315, 11327, 11348, 11354, 11387, 13276, 17919, 17934, 21928, 21931, 21934, 21937 KKP7: Anchorage International Airport, Anchorage, Alaska 2944, 2992, 3007, 3497, 4654, 4687, 5529, 5538, 5544, 6646, 8927, 8936, 10027, 10093, 11354, 17919, 17934 KEA5: Islip, New York 2887, 2899, 2962, 2971, 3016, 3455, 3494, 3476, 4675, 5500, 5520, 5598, 5616, 5649, 6628, 6640, 6856, 6577, 8846, 8825, 8864, 8879, 8906, 8891, 8918, 8933, 11309, 11330, 11342, 11396, 13291, 13297, 13306, 13330, 13354, 17907, 17925, 17946, 21964 KMA7, ARINC, 7514 Radio Station Rd, Dixon, CA 2870.4, 3014.4, 3414.4, 3453.4, 3495.4, 5530.4, 5539.4, 5548.4, 5575.4 6602.4, 6638.4, 6641.4, 6674.4, 8844.4, 8934.4, 8850.4, 10034.4 10058.4, 11283.4, 11343.4, 11349.4, 13274.4, 13262.4, 13289.4, 13301.4, 13341.4, 13349.4, 13355.4, 17905.4, 17926.4, 17941.4, 21926.4
Software
No software is presently available to decode HF ACARS. I am hoping to add support to MultiMode
Specifications
Under Construction - Still trying to get the official specs
ARINC Draft Specification 635 and ARINC Characteristic 753, an adaptation of the MIL-188-110A single- tone modem standard using 8-PSK modulation and a raw data rate of 3600 chips/s.1440 Hz center frequency and a reduced chip rate of 5400 chips/s
To assist with the search for a useable frequency, each HF=Datalink ground station broadcasts system management uplink packets ('squitters') every 32 seconds on 3 or more active frequencies. Aircraft can measure the quality of each channel and use this info to select and automatically tune to a frequency which will allow error-free transmission with adaptive rates of 150, 300, 600, 1200 and 1800 bps. A network of 9-14 HF=Datalink ground stations will extend the coverage of VHF ACARS networks on a world wide basis to over-water flights including air routes over the Atlantic, North Pole, S.America, Africa, the Pacific and Asia.
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You are visitor number csmolinski@erols.com Chris Smolinski Updated September 1, 1999