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Product Registration and Support
Help us better support you by completing your online registration today! Have the
serial number of your product handy and connect to the Garmin website
(www.garmin.com
Registration link on the Home page. Also, be sure to record your serial number in the
space provided.
For aviation product support, visit flyGarmin.com.
Record of Revision
PART
REVISION
NUMBER
190-01182-01
190-01182-01 Rev. E
or https://fly.garmin.com/fly-garmin). Look for the Product
DATE
A
11/19/12
B
03/30/15
C
04/07/15
D
10/05/20
E
10/21/20
Garmin GNC 255A/255B Pilot's Guide
Warnings, Cautions, and Notes
CHANGE DESCRIPTION
Initial Release.
Added v2.10 functionality.
Corrected Part Number on back cover.
Added COM transceiver note and
removed support phone numbers.
Updated images on page 3-20.
iii
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