Garmin Bell 407 GTN, GTN 625, GTN 635, GTN 650, GTN 725 User Manual

190-01007-J4 Rev. 1 RFMS, Bell 407 GTN GPS/SBAS System
Page 2 of 22 FAA APPROVED

LOG OF REVISIONS

Page

Revision

Number

Date

Number

Description

FAA Approved

1

10/23/2013

All

Complete Supplement

See page 1

RFMS, Bell 407 GTN GPS/SBAS System 190-01007-J4 Rev. 1
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Table of Contents

SECTION PAGE

GENERAL INFORMATION 5

Garmin GTN Navigators 5
Capabilities 7
Definitions 7

Section 1. LIMITATIONS 8

1.1 Kinds of Operation 8

1.2 Applicable System Software 8

1.3 SD Card 8

1.4 Ground Operations 8

1.5 Terrain Proximity Function (All Units) 8

1.6 HTAWS Function (Optional) 9

1.7 Datalinked Weather Display (Optional) 9

1.8 Traffic Display (Optional) 9

1.9 Flight Planner/Calculator Functions 9

1.10 Glove Use / Covered Fingers 10

1.11 Demo Mode 10

1.12 Telephone Audio 10

Section 2. NORMAL PROCEDURES 11

2.1 Unit Power On 11

2.2 Before Takeoff 11

2.3 Telephone & SMS Text (Optional) 11

2.4 HTAWS INHIBIT 11

Section 3. EMERGENCY / MALFUNCTION PROCEDURES 12

3.1 HTAWS 12

3.2 COM RADIO 12

3.3 AUDIO PANEL 13

3.4 OTHER 13

Section 4. PERFORMANCE 14
Section 5. WEIGHT AND BALANCE 14
SYSTEM DESCRIPTIONS 15

Pilot’s Guide 15
Power 15
Lighting Controls 15
GMA 35 Audio Panel (Optional) 15
TERRAIN PROXIMITY 16
HTAWS 16
Traffic System (Optional) 18
Datalinks (Optional) 19
Databases 19
External Switches 20
Map Orientation 20
Airspace Depiction and Alerts 21
Fuel Planning Page 21
Charts (Optional) 22

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Transponder Control (Optional) 22
Telephone Audio (Optional) 22

RFMS, Bell 407 GTN GPS/SBAS System 190-01007-J4 Rev. 1

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GENERAL INFORMATION
Garmin GTN Navigators

The Garmin GTN navigation system is a GPS system with a Satellite Based
Augmentation System (SBAS), comprised of one or more Garmin TSO-C146c
GTN 625, 635, 650, 725, or 750 navigator(s) and one or more Garmin approved
GPS/SBAS antenna(s).

GTN system functions are shown in Table 1.

GTN 625

GTN 635

GTN 650

GTN 725

GTN 750

GPS SBAS Navigation

X X X X X

VHF Com Radio, 118.00 to 136.990, MHz, 8.33 or 25 kHz
increments

X X X

VHF Nav Radio, 108.00 to 117.95 MHz, 50 kHz increments

X X

LOC and Glideslope non-precision and precision approach
guidance, 328.6 to 335.4 MHz tuning range

X X

Moving map including topographic, terrain, aviation, and
geopolitical data

X X X X X

Display of datalink weather products, SiriusXM, Connext ( all
optional)

X X X X X

Display of terminal procedures data (optional)

X X

Display of traffic data

X X X X X

Display of marker beacon annunciators (optional)

X X

Remote audio panel control (optional)

X X

Remote transponder control (optional)

X X X X X

Remote audio entertainment datalink control (optional

X X X X X

TSO-C194 HTAWS (optional)

X X X X X

Supplemental calculators and timers

X X X X X

Control of GSR 56 Iridium Satellite Phone and SMS Text
(optional)

X X X X X

Table 1 – GTN Functions

The GPS navigation functions and optional VHF communication and navigation
radio functions are operated by dedicated hard keys, a dual concentric rotary
knob, or the touchscreen.

The GTN requires a reasonable degree of familiarity to avoid becoming too
engrossed at the expense of basic see-and-avoid in VMC. Garmin provides
training tools with the Pilot’s Guide and PC based simulator. Pilots should take
full advantage of these training tools to enhance system familiarization.

190-01007-J4 Rev. 1 RFMS, Bell 407 GTN GPS/SBAS System
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Figure 1 - GTN 750 Control and Display Layout

Figure 2 - GTN 635/650 Control and Display Layout

RFMS, Bell 407 GTN GPS/SBAS System 190-01007-J4 Rev. 1

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Capabilities

The following GTN equipment is installed in this aircraft:

 GTN 750
 GTN 725
 GTN 650
 GTN 635
 GTN 625

The GTN system and associated navigation interface in this aircraft have the
following capability, in addition to the core GPS navigation and display
capability:

 VHF Communication Radio
 VHF Navigation
 HTAWS

Definitions

The following terminology is used within this document:

GPS: Global Positioning System
GTN: Garmin Touchscreen Navigator
HTAWS: Helicopter Terrain Awareness and Warning System
IFR: Instrument Flight Rules
LOC: Localizer
NOTAM: Notice to Airmen
RMT: Remote
SBAS: Satellite Based Augmentation System
SD: Secure Digital
TAS: Traffic Awareness System
TCAS: Traffic Collision Avoidance System
TFR: Temporary Flight Restriction
TIS: Traffic Information Service
VCO: Voice Call Out
VHF: Very High Frequency
VFR: Visual Flight Rules
VMC: Visual Meteorological Conditions
XFR: Transfer