GPS 155Xl/GNC 300XL Installation Manual
P/N 190-00067-22 Rev E Page 4-7
4.3.9
I/O Channel 2
NOTE:
This page is not found in the Test Pages but is included here to aid installation. For more
information, see SET pages in the Pilot’s Guide (GPN 190-00067-20 for the GPS 155XL or
190-00067-30 for the GNC 300XL).
Select the I/O CHANNEL 2 Set Page. Change the selectable input and output to match that of the installed
equipment. The available options are:
Input:
Field
Description
off
NO AVAILABLE SELECTIONS
rtcm 104
RTCM SC-104 Compatible Differential GPS Receiver
NOTE:
Below is a list of the RTCM SC-104 messages that the unit will receive:
•
Message Type 1: Differential GPS Corrections
•
Message Type 2: Delta Differential GPS Corrections
•
Message Type 3: Reference Station Parameters
•
Message Type 9: High Rate Differential Corrections
Output:
Field
Description
off
No units connected to Channel 2 output
plotting
Serial position, velocity, navigation and satellite data
to: NMEA 0183 Version 2.0 compatible mapping device
or GARMIN PC software
NOTE:
The following is a list of the NMEA 0183 sentences (with maximum number of characters)
that the GPS 155XL/GNC 300XL transmits.
RMC
-70 characters
GGA
-72 characters
GSA
-57 characters
GSV
-140 characters (70 characters x 2 sentences)
RMB
-70 characters
BOD
-35 characters
WPL
-38 characters
*PGRME
-35 characters
*GARMIN proprietary accuracy error sentence that is not a part of the NMEA 0183 standard.
4.4
GROUND TEST
The GPS 155XL/GNC 300XL ground test procedure incorporates a series of display pages to test CDI/flag, OBI,
annunciators, external switches, altitude inputs, and power functions of the unit.
