Garmin 010-00859-00 Installation Manual - page 39
Manual is about: TSO, Transceivers/Receivers
of
44
GDL 88 TSO Installation Manual
Page B-3
190-01122-00
Rev. A
B.1.4 Shadin Altitude Sentence
The GDL 88 is capable of receiving the following 17-byte message from Shadin Altitude Encoders,
Altitude Serializers, and Altitude Converters:
RMS
Where:
RMS
ASCII characters
space (0x20)
<+/->
sign indicator (0x2b["+"] or 0x2d["-"])
12345
altitude in feet
T
ASCII character
<+/->
sign indicator
12
sensor temperature
ul
checksum of bytes 1 through 14 in hex ASCII (i.e., "FA")
carriage return (0x0d)
Note: Checksum is calculated by adding each byte in the message (1 through 14).