Garmin GTX 345 User manual

FAA Approved: Mar 28/19 Jan 15/19
ENSTROM F-28F/280FX OPERATOR’S
MANUAL
AND
FAA APPROVED
ROTORCRAFT FLIGHT MANUAL
SUPPLEMENT
GTX 345 ADS-B TRANSPONDER
* * * * *
REPORT NO. 28-AC-081
HELICOPTER SERIAL NO.
HELICOPTER REGISTRATION NO.
* * * * *
THIS SUPPLEMENT MUST BE CARRIED IN THE
HELICOPTER AT ALL TIMES IF EQUIPPED WITH THE
GTX 345 INSTALLATION. CHAPTERS 1, 2, 3, AND 4 ARE
FAA APPROVED.
FAA APPROVED
ACTING MANAGER, SOUTHWEST FLIGHT TEST SECTION,
AIR-713
FEDERAL AVIATION ADMINISTRATION
FT. WORTH, TX
DATE
THE ENSTROM HELICOPTER CORPORATION
2209 22ND STREET
MENOMINEE, MICHIGAN 49858-3515
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
INTENTIONALLY LEFT BLANK
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

ENSTROM F-28F/280FX RFM SUPPLEMENT i
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
LOG OF REVISIONS
Rev.
No. Issue Date FAA Approved / Date
Approved by the Manager,
Southwest Flight Test Section, AIR-713
Federal Aviation Administration
Ft. Worth, TX
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

ii ENSTROM F-28F/280FX RFM SUPPLEMENT
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
INTENTIONALLY LEFT BLANK
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

ENSTROM F-28F/280FX RFM SUPPLEMENT iii
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
ROTORCRAFT FLIGHT MANUAL SUPPLEMENT
GTX 345 ADS-B TRANSPONDER
TABLE OF CONTENTS
CHAPTER DESCRIPTION PAGE
Log of Revisions ..........................................i
Table of Contents......................................iii
List of Figures .......................................... iv
List of Tables ............................................iv
List of Effective Pages ...............................v
INTRODUCTION ............................ INTRO-1
CHAPTER 1 OPERATING LIMITATIONS
MinimumEquipment............................. 1-1
ADS-B Out ............................................ 1-1
Software Version.................................... 1-1
Pressure Altitude Broadcast Inhibit ....... 1-1
Traffic Display and Alerting ................... 1-2
Datalinked Weather Display .................. 1-2
Placards ................................................ 1-2
Pilot’s Guide .......................................... 1-2
CHAPTER 2 NORMAL PROCEDURES
General ................................................. 2-1
Before Takeoff........................................ 2-1
CHAPTER 3 EMERGENCY PROCEDURES
General ................................................. 3-1
Abnormal Procedures ............................ 3-1
CHAPTER 4 PERFORMANCE DATA
General ................................................. 4-1
CHAPTER 6 WEIGHT/BALANCE AND LOADING
General ................................................. 6-1
CHAPTER 7 SYSTEM DESCRIPTION AND OPERATION
General ................................................. 7-1
System Description................................ 7-1
Operation .............................................. 7-3
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

iv ENSTROM F-28F/280FX RFM SUPPLEMENT
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
ROTORCRAFT FLIGHT MANUAL SUPPLEMENT
GTX 345 ADS-B TRANSPONDER
CHAPTER DESCRIPTION PAGE
LIST OF FIGURES
FIGURE NO. DESCRIPTION PAGE
3-1 ADS-B 1090 Failed Screen...................3-1
3-2 ADS-B 1090 and Transponder Failed
Screen .................................................3-1
7-1 GTX 345 Installation ...........................7-2
7-2 GTX 345 System Interface ...................7-3
7-3 GTX 345 Front Panel ...........................7-5
LIST OF TABLES
TABLE NO. DESCRIPTION PAGE
Intro-1 List of Abbreviations ...................... Intro-1
1-1 ADS-B Out Required Equipment..........1-1
1-2 Software Versions................................1-1
7-1 GTX 345 Control Keys and Functions..7-6
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

ENSTROM F-28F/280FX RFM SUPPLEMENT v
LIST OF EFFECTIVE PAGES
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
PAGE DATE
i Jan 15/19
ii Jan 15/19
iii Jan 15/19
iv Jan 15/19
v Jan 15/19
vi Jan 15/19
INTRO-1 Jan 15/19
INTRO-2 Jan 15/19
1-1 Jan 15/19
1-2 Jan 15/19
2-1 Jan 15/19
2-2 Jan 15/19
3-1 Jan 15/19
3-2 Jan 15/19
4-1 Jan 15/19
4-2 Jan 15/19
6-1 Jan 15/19
6-2 Jan 15/19
7-1 Jan 15/19
7-2 Jan 15/19
7-3 Jan 15/19
7-4 Jan 15/19
7-5 Jan 15/19
7-6 Jan 15/19
7-7 Jan 15/19
7-8 Jan 15/19
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

vi ENSTROM F-28F/280FX RFM SUPPLEMENT
Report No. 28-AC-081 Jan 15/19
INTENTIONALLY LEFT BLANK
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

ENSTROM F-28F/280FX RFM SUPPLEMENT INTRO-1
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
GTX 345 TRANSPONDER
INTRODUCTION
Intro-1. General
This supplement contains the operating instructions,
procedures, and limitations for the Garmin GTX 345
Transponder with Automatic Dependent Surveillance-
Broadcast (ADS-B) functionality.
The supplement is divided into two basic parts, the FAA
approved RFM Supplement and Supplemental Data
provided by the Enstrom Helicopter Corporation (Enstrom).
Chapters 1, 2, 3, and 4 make up the FAA approved RFM
Supplement. It is required by Federal Regulations that this
supplement be carried in the helicopter at all times if the
Garmin GTX 345 is installed.
Intro-2. List of Abbreviations
Abbreviations noted in this supplement are listed in Intro-1.
Intro-1. List of Abbreviations
ADS-B Automatic Dependent Surveillance - Broadcast
ADS-R Automatic Dependent Surveillance - Rebroadcast
ATC Air Traffic Control
CFR Code of Federal Regulations
ES Extended Squitter
FAA Federal Aviation Administration
FIS-B Flight Information Service - Broadcast
GPS Global Positioning System
ICS Intercom System
MHz Megahertz
PABI Pressure Altitude Broadcast Inhibit
PED Portable Electronic Device
RFM Rotorcraft Flight Manual
SBAS Satellite-Based Augmentation System
SW Software
TAS Traffic
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED

INTRO-2 ENSTROM F-28F/280FX RFM SUPPLEMENT
FAA Approved: Mar 28/19
Report No. 28-AC-081 Jan 15/19
TIS-B Traffic Information Services - Broadcast
TX Transmit
UAT Universal Access Transceiver
VOX Voice Transmission
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
UNCONTROLLED COPY WHEN DOWNOADED OR PRINTED