DATA LINK ACCESS FOR AIRCRAFT SYSTEM
MU CONTAINS A MODEM THAT USES MINIMUM SHIFT KEYING (MSK) AMPLITUDE MODULATION PROVIDING A DATA RATE OF 2400 BITS/SECOND
VHF ACARS STATIONS ON GROUND PROVIDE OVERLAPPING RANGE USING THE SAME FREQUENCY
AS ON 31ST DEC, 1999 THERE WERE 517 REMOTE GROUND STATIONS WERE OPERATING
ASSIGNED FREQUENCIES ARE:
- 131.725 MHz FOR EUROPE, SOUTH AMERICA, CARIBBEAN, MIDDLE EAST, AFRICA AND ST. PIERRE ET MIQUELON(FRENCH CANADA)
- 131.550 MHz FOR ASIA, NEW ZEALAND AND THE PACIFIC
- 136.850 MHz FOR United States of America AND CANADA
- TO PARTLY MEET THE REQUIREMENT OF DENSE TRAFFIC IN EUROPE, 131.525 MHz PROVIDED FOR ENROUTE AND 136.900 MHz PROVIDED FOR USE ON GROUND