Garmin GNC 420 User Manual

P/N 13772-104 1 of 8
Cirrus Design Section 9
SR22 Supplements
Pilot’s Operating Handbook and
FAA Approved Airplane Flight Manual
Supplement
For
Garmin GNC 420 GPS Navigator
When a GARMIN GNC 420 GPS Navigator with VHF COM is installed
in the Cirrus Design SR22, this Supplement is applicable and must be
inserted in the Supplements Section (Section 9) of the Cirrus Design
SR22 Pilot’s Operating Handbook. This document must be carried in
the airplane at all times. Information in this supplement either adds to,
supersedes, or deletes information in the basic SR22 Pilot’s Operating
Handbook.
• Note •
This POH Supplement Revision dated Revision 2: 08-15-07
supersedes and replaces the Revision 1 of this supplement
dated 05-25-05.
Revision 2: 08-15-07

Garmin GNC 420 Specifications

General

Brand	Garmin
Model	GNC 420
Category	GPS
Language	English

Summary

Section 1 General

Section 2 Limitations

Section 3 Emergency Procedures

Section 4 Normal Procedures

Activate GPS

Procedure for activating the GPS navigator system, involving battery and avionics power switches.

GPS Course Remote Display

Deactivate GPS

Procedure for turning off the GPS navigator by rotating the COM/Power switch.

Section 5 Performance

Section 6 Weight & Balance

Section 7 Systems Description

GNC 420 Integrated GPS/COM System

Overview of the GNC 420 integrated GPS navigator and COM transceiver system.

GPS Navigator

Communication (COM) Transceiver

TERRAIN Interface