Cirrus DESIGN SR20 Information Manual page 353

Cirrus Design
SR20
GPS Course Remote Display
GNC 420 GPS course information is displayed on the airplane CDI.
Since the GNC 420 does not provide ILS outputs, the CDI
utilized in this installation does not provide glideslope display.
Deactivate GPS
1. Navigator Com/ Power Switch .......................... Rotate CCW 'OFF'
Section 5 - Performance
No change from basic Handbook.
Section 6 - Weight & Balance
No change from basic Handbook.
Section 7 - Systems Description
This supplement provides a general description of the
GARMIN GNC 420, its operation, and SR20 interface. For a
detailed description of the GNC 420 and full operation
instructions refer to the GARMIN GNC 420 Pilot's Guide and
Reference, P/N 190-00140-20, Revision B dated August 2002
(or later appropriate revision).
GNC 420 Integrated GPS/COM System
This airplane is equipped with a GNC 420 integrated GPS navigator
and COM transceiver. The GPS navigator consists of a GPS receiver,
a navigation computer, and a Jeppeson NavData database all
contained in the GNC 420 control unit mounted in the center console.
The GPS is designated 'GPS 2.' Additionally, a VHF communications
receiver, designated COM 2, is also integrated into the unit. All tuning
and display controls for the GPS and COM are located in the GNC 420
control/display in the center console. The following paragraphs
describe the GPS and COM functions of this unit. For a complete
description, as well as full operating instructions, refer to the GARMIN
GNC 420 Pilot's Guide and Reference.
P/N 11934-S23
Revision 02: 08-15-07
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Section 9
Supplements
5 of 8