AP-20
APPENDIX 4 DATA COLOR AND
MEANING
Validity and integrity of input data (mode indicator)
*
1
: “Age of differential GPS data” in GGA and GNS sentences is ten seconds or higher. In this
case, ship’s latitude and longitude are displayed in yellow.
Data color
HDG
L/L
SPD
COG/SOG
Normal color
(normal data)
THS-A, E
HDT
GNS-A, D *
1
, F, P, R and (NAV status: S, V)
GGA-1, 2 *
1
, 3, 4, 5
GLL-A, D and (status: A)
RMC-A, D, F, P, R and (status: A) and (NAV
status: S, V)
VBW-A
VHW
VTG-A, D, P
RMC-A, D,
F, P, R and
(status: A)
and (NAV
status: S,
V).
Yellow-or-
ange color
(invalid data)
GNS-E, M, S
GGA-6, 7, 8
GLL-E, M, S and (status: A)
RMC-E, M, S and (Status: A)
VTG-E, M, S
RMC-E, M,
S, and (sta-
tus: A)
Yellow color
(low integrity)
GNS-A, D*
1
, F, P, R, and (NAV status: C, U)
RMC-A, D, F, P, R and (status: A) and (NAV
status: C, U)
RMC-A, D,
F, P, R and
(status: A)
and (NAV
status: C, U)
***.*
THS-M, V, S GNS-N
GGA-0
RMC-N, (status: V), (NAV status: N)
GLL-N, (status: V)
VBW-V VTG-N
RMC-N (sta-
tus: V)
Summary of Contents for FAR-2218
Page 132: ...1 OPERATIONAL OVERVIEW 1 110 This page is intentionally left blank ...
Page 176: ...3 TARGET TRACKING TT 3 36 This page is intentionally left blank ...
Page 202: ...4 AIS OPERATION 4 26 This page is intentionally left blank ...
Page 232: ...5 VIDEO PLOTTER OPERATION 5 30 This page is intentionally left blank ...
Page 294: ......