Furuno FR-2805 Series - Manual (Page 101)

A-7
,a*hh<CR><LF> .
.
Mode indication *2
(A/D/E/M/S/N)
Checksum
,a*hh<CR><LF>
Mode indication *2
(See note in below.)
Checksum
.
*1 Not used
*2 Edition 2 only
*1
UTC of observation *1
*1 Not used
*2 Edition 2 only
UTC of observation *1
*1
. .
Note: The mode indicatior charactor "a" has been defined as follows:
A= Automonous mode
D= Differential mode
E= Estimated (dead reckonning) mode
M= Manual input mode
S= Simulator mode
N= Data not valid