DCN - Decca Position (obsolete)

                                      11  13      16
        1  2  3   4 5  6   7 8  9   10| 12| 14  15| 17
        |  |  |   | |  |   | |  |   | | | | |   | | |
 $--DCN,xx,cc,x.x,A,cc,x.x,A,cc,x.x,A,A,A,A,x.x,N,x*hh<CR><LF>

 Field Number: 
  1) Decca chain identifier
  2) Red Zone Identifier
  3) Red Line Of Position
  4) Red Master Line Status
  5) Green Zone Identifier
  6) Green Line Of Position
  7) Green Master Line Status
  8) Purple Zone Identifier
  9) Purple Line Of Position
  10) Purple Master Line Status
  11) Red Line Navigation Use
  12) Green Line Navigation Use
  13) Purple Line Navigation Use
  14) Position Uncertainity
  15) N = Nautical Miles
  16) Fix Data Basis
     1 = Normal Pattern
     2 = Lane Identification Pattern
     3 = Lane Identification Transmissions
  17) Checksum