Garmin GNC 255A Pilot's Guide

190-01182-01 Rev. E Garmin GNC 255A/255B Pilot’s Guide v
Table of Contents
1 GETTING STARTED ............................................................................................................ 1-1
1.1 Product Description ................................................................................... 1-1
1.2 Pilot Controls ............................................................................................ 1-2
1.3 USB Port ................................................................................................... 1-4
2 BASIC OPERATION ............................................................................................................ 2-1
2.1 COM Radio ............................................................................................... 2-1
2.1.1 Selecting a COM Frequency ................................................................ 2-1
2.1.2 Monitoring the Standby COM Channeler ........................................... 2-2
2.1.3 Saving a COM Channel ...................................................................... 2-2
2.1.4 COM Database Look-Up ..................................................................... 2-4
2.1.5 Emergency Channel ........................................................................... 2-5
2.1.6 Stuck Mic ........................................................................................... 2-5
2.1.7 Connext Setup ................................................................................... 2-5
2.1.8 Remote Frequency Selection Control .................................................. 2-6
2.2 NAV Radio ................................................................................................ 2-6
2.2.1 Selecting a NAV Frequency ................................................................. 2-6
2.2.2 Saving a NAV Channel ....................................................................... 2-7
2.2.3 Listening to the NAV Audio Channel .................................................. 2-7
2.3 OBS Mode ................................................................................................ 2-8
2.4 Distance/Speed/Time (DST) Display ............................................................ 2-9
3 FUNCTIONS ........................................................................................................................... 3-1
3.1 Functions .................................................................................................. 3-1
3.2 COM Frequencies ..................................................................................... 3-2
3.2.1 Recent COM Frequencies ................................................................... 3-2
3.2.2 COM User Frequencies ....................................................................... 3-2
3.2.3 COM Database Frequencies ................................................................ 3-5
3.2.4 COM Nearest Airports (APT) ............................................................... 3-6
3.2.5 COM Nearest Area Control Center (ACC) Frequencies ........................ 3-6
3.2.6 COM Nearest Flight Service Station (FSS) Frequencies ......................... 3-7
3.2.7 COM Nearest Weather (WX) Frequencies ........................................... 3-7
3.3 NAV Frequencies ....................................................................................... 3-8
3.3.1 Recent NAV Frequencies ..................................................................... 3-8
3.3.2 NAV User Frequencies ........................................................................ 3-8
3.3.3 NAV Database Frequencies ............................................................... 3-11
3.3.4 NAV Nearest VOR ............................................................................. 3-12
3.4 ICS Configuration ................................................................................... 3-13
3.4.1 Adjust Intercom ................................................................................ 3-13
3.4.2 AUX Audio ....................................................................................... 3-14
3.4.3 Intercom On/Off ............................................................................... 3-14
3.4.4 Speaker On/Off ................................................................................ 3-15
3.5 System Configuration ............................................................................. 3-16
3.5.1 COM Spacing ................................................................................... 3-16
3.5.2 COM Sidetone (Software v2.10 or later) ........................................... 3-17
3.5.3 Display Brightness ............................................................................ 3-18
3.5.4 Display Contrast ............................................................................... 3-18
3.5.5 Database Info ................................................................................... 3-19
3.5.6 Load Database ................................................................................. 3-19
3.5.7 Software Version .............................................................................. 3-20
3.5.8 Serial Number .................................................................................. 3-20

Garmin GNC 255A Specifications

General

Brand	Garmin
Model	GNC 255A
Category	Transceiver
Language	English