Garmin GNC 250 Pilot’S Quick Reference Guide

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GNC 250

Pilot’s Quick

Reference Guide

ACTV STBY GNC 250

NAVWPTRTENRSTSQ

MSG

CLR ENT

CRSR

250 Quick Ref 7/14/98 9:14 AM Page 1

Reference Guide1
Cursor Control3
Data Entry4
Power up5
Select Active and Standby Frequencies5
To Select a Direct - to Destination6
To Select Comm Frequencies7
To Exchange Active and Standby Frequencies7
To Adjust the Audio Volume7
To Override the Automatic Squelch7
To Auto-Tune a Frequency Displayed in GPS Database8
To Auto-Tune Frequncy from List in GPS Database8
To Automatically Tune for Emergency Transmission8
To Access Apt Information10
To Enter Apts by Identifier10
To Select an Apt by Facility Name or City10
Direct-To11
To Select a Direct11
To Cancel A-Direct to11
To Re - Center the D - Bar11
Using the Direct-To Confirmation Page12
To Select a Direct-To Destination12
To Review the Location/Facility of Direct12
To Enter a Desired Course to or from Destination Waypoint12
Waypoint Sequencing and Hold Mode13
To Hold on a Waypoint13
Using the Course Selection Function14
To Enter a New Course from the CDI Page14
Navigation15
CDI Page16
Navicom Page16
Position Page16
Nearest/Sua17
Nearest Waypoihnt Information18
Special Use Airspace Alerts18
Routes19
To Create or Edit a Route19
Activating and Deleting Routes20
Flying the Active Route20
To Review Route Waypoints from Active Route Page20
To Hold on Route Waypoint20
Unit Settings21

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Questions and Answers:

M
Margaret FosterSep 10, 2025
What does it mean if Garmin Transceiver RAM failed?
- J
  Joshua OrtegaSep 12, 2025
  If your Garmin Transceiver RAM failed, replace the CPU Board.

Garmin GNC 250 Specifications

General

Display Type	LCD
Power Supply	10-32 VDC
Frequency Range	118.000 to 136.975 MHz
Channel Spacing	25 kHz
GPS	Yes
Type	GPS/COM
Navigational Capabilities	GPS

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Garmin GNC 250 Pilot’S Quick Reference Guide

Table of Contents

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Garmin GNC 250 Specifications

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