User`s guide

Chapter 5 - I/O Commands
ASCII POSITION MESSAGE (@@Eq)
Motorola Binary Format
Response Message Continued
Height:
s = sign of height + or -
hhhh.h = height in meters -1000.0..18,000.0
Velocity:
sss.s = speed in knots 000.0..999.9
hhh.h = heading in degrees 000.0..359.9
Receiver status:
m = fix mode 0 = autonomous
1 = differential
t = fix type 0 = no fix
1 = 2D fix
2 = 3D fix
3 = Position Propagate Mode
dd.d = dilution of precision 00.0…99.9, HDOP if 2D, PDOP if 3D
nn = number of satellites in use 00..37
rrrr = reference station ID 0000..1023
aa = age of differential data in s 00..90
CCC = checksum 000 .. 255****
Message length: 96 bytes
****Note that unlike all other binary messages, the @@Eq response checksum consists of the
three ASCII characters that make up the normal XOR'ed checksum of the hex values of the
ASCII characters. For instance, if the hex value of the XOR'ed checksum = 0xC4, the receiver
would report an ASCII checksum of 196.
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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