M12 Oncore Users Guide Supplement - deetc - isel

Input Command
Response Message
Motorola GPS Products
M12 Oncore User’s Guide Supplement
Revision 1.0 01/25/00
UTC/IONOSPHERIC DATA INPUT
Motorola Binary Format
• Change UTC/Ionospheric Data:
@@CoabcdefghAAAAaaaadtwWnDC
Ionospheric Data (see ICD-GPS-200, Table 20-X for scale factors)
a
b
α0 α1 -128…+127 seconds
-128…+127 seconds/semi-circle
c α2 -128…+127 seconds/(semi-circle) 2
d α3 -128…+127 seconds/(semi-circle) 3
e
f
β0 β1 -128…+127 seconds
-128…+127 seconds/semi-circle
g β2 -128…+127 seconds/(semi-circle) 2
h β3 -128…+127 seconds/(semi-circle) 3
UTC Data (see ICD-GPS-200, Table 20-IX for scale factors)
AAAA A0 -2,147,483,648…+2,147,483,647 seconds
aaaa
d
A1 ∆tLS -8,388,608…+8,388,607 seconds/second
-128…+127 seconds
t tot 0…602,112 seconds
w WNt0…255 weeks
W WNLSF 0…255 weeks
n DN 1…7 days
D ∆tLSF -128…+127 seconds
C checksum
Message Length: 29 bytes
• To above command:
@@CoabcdefghAAAAaaaadtwWnDC
Ionospheric Data (see ICD-GPS-200, Table 20-X for scale factors)
a α 0 -128…+127 seconds
b α 1 -128…+127 seconds/semi-circle
c α 2 -128…+127 seconds/(semi-circle) 2
d α 3 -128…+127 seconds/(semi-circle) 3
e β 0 -128…+127 seconds
f β 1 -128…+127 seconds/semi-circle
g β 2 -128…+127 seconds/(semi-circle) 2
h β 3 -128…+127 seconds/(semi-circle) 3
UTC Data (see ICD-GPS-200, Table 20-IX for scale factors)
AAAA A0 -2,147,483,648…+2,147,483,647 seconds
aaaa
d
A1 ∆tLS -8,388,608…+8,388,607 seconds/second
-128…+127 seconds
t tot 0…602,112 seconds
w WNt0…255 weeks
W WNLSF 0…255 weeks
n DN 1…7 days
D ∆tLSF -128…+127 seconds
C checksum
Message Length: 29 bytes
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