Garmin G3X - Page 780

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page C-3
Table C-2 Attitude/Air Data Set 2 Message Format
Field Name Offset Width Units Notes Min Max
Escape character 0 1 '='
Sentence ID 1 1 '2'
Sentence version 2 1 Currently ‘1’
UTC hour 3 2 hours 00 23
UTC minute 5 2 minutes 00 59
UTC second 7 2 seconds 00 59
UTC second
fraction
9 2 10 ms 00 99
True Airspeed 11 4 0.1 knots 0000 9999
Density Altitude 15 6 1 foot -01000 +99999
Heading Bug 21 3 1 degree magnetic 000 359
Altitude Bug 24 6 1 foot -01000 +99999
Airspeed Bug 30 4 0.1 knots 0000 9999
Vertical Speed Bug 34 4 10 fpm positive = up -999 +999
Checksum 38 2 ASCII hex
sum of all previous
bytes
CR/LF 40 2 0x0D / 0x0A
Total length 42