Appendix F - C-Map Data Transfer - AvMap EKP-IV User Manual

REGIONAL CARTOGRAPHY
You can enhance the level of detail found in the internal memory with regional Compact Flashs. The additional
street and lake information provides more detail and increased accuracy of the land cartography on the lower
zoom levels of the unit.
CUSTOMIZED REGIONAL COVERAGE AREA
C-MAP's customized regional coverage option can provide you with the opportunity to create a Compact Flash
centered around your home town. Actual coverage area will be determined by the amount of detail in your area.
NAVDATA UPDATES
Updates to the aviation Database cartridge are provided through C-MAP Aviation. Cartridges are updated on a
28-day cycle and consist of data compiled from Jeppesen and other sources. Subscriptions are available for three
and six time per year updates. Please contact C-MAP Aviation for pricing and availability.

Appendix F - C-MAP Data Transfer

The bi-directional data port outputs and inputs NMEA Data. NMEA messages sent/received at 48004N1, are
defined as follows:
APA Autopilot Sentence "A" contains navigation receiver warning flag status, cross-track-error, Waypoint ar-
rival status and initial bearing from origin Waypoint to the destination Waypoint for the active navigation leg of
the journey.
APB Autopilot message contains all of the above plus: heading to steer toward destination, bearing from the
present position to the destination (magnetic or true).
BOD Bearing Origin to Destination.
BWC Bearing and Distance to Waypoint.
GGA GPS position, time, fix quality, number of satellites used, height of antenna, HDOP (Horizontal Dilution
of Precision), differential reference information and age.
GLL GPS-derived Latitude, Longitude and time of fix.
GSA GPS receiver operating mode, satellites used in the navigation solution reported by the $— GGA sentence
and DOP (Dilution of Precision) values.
GSV Number of satellites in view, satellite numbers, elevation, azimuth, and SNR value.
HDG Heading, Deviation & Variation.
HDM Heading Magnetic.
HDT Heading True.
HSC Heading Steering Command.
PCMPA C-MAP Proprietary Sentence "A" contains Time, Fix Latitude/Longitude, SOG, COG, Date. For
more information contact your local dealer.
PCMPT C-MAP Proprietary Sentence used to transfer Track history data and all additional information ssociated
to the Track. For more information contact your local dealer.
RMA Recommended Minimum Specific Loran-C Data.
RMB Data status, Cross Track Error, direction to steer, origin, destination Waypoint, Waypoint location, bear-
ing to destination and velocity toward the destination.
RMC Time, Latitude, Longitude, Speed Over Ground, Course Over Ground and date.
RTE Routes RTE - Routes.
VHW Water Speed and Heading.
VTG Course Over Ground & Ground Speed.
WCV Waypoint Closure Velocity
WPL Waypoint Location.
XTE Cross-Track Error
For information about the NMEA format specifications:
NMEA National Office - P.O. Box 3435, New Bern, NC 28564-3435, U.S.A.
Telephone: (252) 638-2626, FAX: (252) 638-4885 E-mail: nmea@coastalnet.com, http://www.nmea.org
104 User Manual