Sentence use reference
98-139768-A Appendix B: NMEA sentences B-5
BBBB
NMEA sentences
B.2.6 NRX - NAVTEX received message (output)
$--NRX,xxx,xxx,xx,aaxx,x,hhmmss.ss,xx,xx,xxxx,x.x,x.x,A,c--c*hh<CR><LF>
Field Data format Description Comment
1 NRX Sentence Id Used
2 xxx Total number of sentences, 001 to 999 Used
3 xxx Sentence number, 001 to 999 Used
4 xx Sequential message id, 00 to 99 Used
5 aaxx NAVTEX message code Used
6 x Frequency table index, 0 to 9 Used
7 hhmmss.ss UTC of receipt of message Used
8 xx Day, 1 to 31 Used
9 xx Month, 1 to 12 Used
10 xxxx Year Used
11 x.x Total number of characters in this series of NRX
sentences
Used
12 x.x Total number of bad characters Used
13 A Status indication Always 'A'
14 c--c Message body Used
Table B-7: NMEA sentence: NRX