UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
4
1-1
Jan
9/14
CHAPTER 1
SL30 NAV COM
SECTION 1
SYSTEM DESCRIPTION
1-1. System
Description
A. The SL30 NAV/COM unit is a VHF Navigation/Communications Transceiver
utilizing high performance Digital Signal Processing (DSP) filtering. It includes a 760-
channel VHF Com transceiver and a 200-channel VOR/LOC/GS navigation receiver.
B. Functions and features of the SL30 include automatic decoding of the Morse
code station identifier for VOR/LOC, memory storage for most-used frequency, built-in
course deviation indicator, standby Com and Nav frequency monitoring, Nav receiving for
both VOR and LOC navigation signals, and built in Glideslope receiver.
C. The components of the SL30 system include the panel mounted SL30 unit and
nav and com antennas. The SL30 provides output to a VOR/LOC/GS Indicator and to
either a VOX ICS or an audio panel.
D. Power to the SL30 unit is provided via the
COM
circuit breaker (CB27) (5 Amp)
and the
NAV
circuit breaker (CB39) (2 Amp) located on the left side of the center pedestal.
E. Refer to the 280FX Rotorcraft Flight Manual Supplement and the current
vendor operating manuals/instructions for operation of the SL30 system.
1-2. Vendor
Publications
A. The SL30 is to be operated and maintained I/A/W the current vendor’s
instructions to ensure the continued airworthiness of the aircraft. The applicable vendor
manuals are listed in Table 1-1.
Table 1-1. Vendor Manuals
Component Publication
Vendor
SL30
SL30 Nav Com Pilot’s Guide Garmin International
1200 E. 151
st
Street
Olathe, KS 66062
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