Garmin Bell 407 GTN User Manual - page 5
RFMS, Bell 407 GTN GPS/SBAS System
190-01007-J4 Rev. 1
FAA APPROVED
Page 5 of 22
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.
G
TN
625
G
TN
635
GT
N
650
G
TN
725
G
TN
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.