NavCom LAND-PAK Rev.N - Manual (Page 131)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only
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0xab - WAAS Data Stream - 48 bytes
Record
Usage Command - No
Response - Yes Input: Not used;
Output: reports WAAS correction data
Ref Message Field Description Data Type Units Range Scale
Byte
Count
STX 02 (hex) U08 1
PRA1 99 (hex) U08 1
PRA2 66 (hex) U08 1
ID ab (hex) U08 1
Length 0x002e U16 2
W1 GPS Week Number, since Jan 6, 1980 U16 0 - 65535 2
W2 GPS Time U32 sec 0 - 604800 4
W3 250 Bits of Data (see WAAS spec) U08[32] 1[32]
W4 WAAS Satellite ID U08 1
W5 WAAS message type U08 1
W6 C/N0 U08 dB/Hz Lsb: 0.25 1
W7 WAAS channel used U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1