Nmea 183 - Magellan FX324 MAP Manual

NMEA 183

8 bits of DATA, 2 STOP bits, no parity, 4800 BAUDS.
NMEA 183 format is a series of several blocks made up of ASCII characters. When
the GPS does not calculate the data (no reception), the blocks are nil (empty).
Three versions of the NMEA 183 standard are available on the FX324 MAP:
Version 1.5, Version 2.0 and Version 2.3.
Note: To use the device with the cockpit repeater Echonav, select the
sentences preceded by the letter E (e.g. EGGA).
AAM: Waypoint Arrival Alarm
Version 1.5
$GPAAM, A/V, A/V, X.X, N, C- -C
Version 2.0 and Version 2.3
$GPAAM, A/V, A/V, X.X, N, C- -C * hh
A/V: Arrival circle entered: Yes = A; No = V
A/V: Perpendicular passed at waypoint: Yes = A; No = V
X.X, N: Arrival circle Radius in NM
Version 1.5:
C- -C: Waypoint identification in 4 letters
Version 2.0 and Version 2.3:
C- -C: Waypoint identification in 6 letters
*hh: Sentence checksum
APB: Autopilot format B
Version 1.5
$GPAPB, A/V, A/V, 0.05,R,N, A/V, A/V, 000,M,C- -C, 268,M, XXX,M
Version 2.0
$GPAPB, A/V, A/V, 0.05,R,N, A/V, A/V, 000,M,C- -C, 268, XXX,M *hh
Version 2.3
$GPAPB, A/V, A/V, 0.05,R,N, A/V, A/V, 000,M,C- -C, 268, XXX,M,a *hh
A/V: Destination valid = A, invalid = V
A/V: Everything is OK = A, reception alarm = V
0.05,R,N: Cross track error (XTE) in NM with R/L direction: L = port; R = starboard
A/V: Arrival circle entered: Yes = A, Non = V
A/V: Perpendicular passed at waypoint: Yes = A, Non = V
000,M: Magnetic azimuth from the origin to the destination
268,M: Magnetic azimuth from the current position to the destination
XXX, M: Magnetic course to steer to the waypoint
Version 1.5:
C- -C: Waypoint identification in 4 letters
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