Cirrus DESIGN SR20 Information Manual page 338

Section 9
Supplements
SkyWatch may be pilot controlled through the GNS 430 controller.
STBY (standby), OPER (operational), and SELF TEST modes as well
as altitude display (ABV, look up; NRM, normal: BLW, look down; or
UNR, unrestricted) can be selected.
The SkyWatch System consists of a Transmitter Receiver Computer
(TRC) installed under the copilot's seat just forward of the spar tunnel
and a directional antenna installed on the airplane exterior above the
cabin. The system also utilizes inputs from the altitude encoder, the
aircraft heading system (gyro slaving amplifier), and a speed switch
plumbed into the pitot system. Electrical power for system operation is
28 vdc supplied through the 5-amp SKYWATCH Circuit Breaker on the
Avionics Non-Essential bus.
Refer to the L-3 Avionics Systems SkyWatch Pilot's Guide (P/
N 009-10801-001) for a description of the SkyWatch System.
Refer to the GARMIN Addendum for "Display Interface for
Traffic and Weather Data" P/N 190-001140-10 for additional
operational information and a display description.
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• Note •
Cirrus Design
SR20
P/N 11934-S15
Revision 01: 10-12-05