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APPENDIX B
98
WIRING & INTERFACE (cont.)
Interfacing
The following formats are supported for connection to up to
three NMEA devices:
• NMEA 0183 version 2.0
Approved sentences—
GPGGA, GPGSA, GPGSV, GPRMB,
GPRMC, GPRTE, GPWPL, GPBOD
Proprietary sentences—
PGRME (estimated error), PGRMM (map datum)
PGRMZ (altitude), PSLIB (beacon receiver control
input)
DGPS
DGPS corrections are accepted in RTCM-104 v. 2.0 format
through the NMEA In (BROWN) harness lead. The GARMIN GBR 21
is the recommended beacon receiver for use with the GPSMAP sys-
tem. Other receivers with the correct RTCM format may be used, but
may not correctly display status or allow tuning control from the
GPSMAP 195 unit. When using the GARMIN GBR 21, select the
‘RTCM In/NMEA Out’ interface format (as described on page 74).
Other differential receivers may use this setting or the ‘RTMC In/No
Out’ format.
GARMIN
GBR 21
GARMIN GBR 21 Beacon Receiver
gps 195 manual C 7/1/99 4:49 PM Page 98