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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csmolinski@erols.com Chris Smolinski

Updated September 1, 1999