Section 1. General
1.1
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). The GTN navigation system is installed in accordance
with AC 20-138A.
GPS SBAS Navigation:
Oceanic, enroute, terminal, and non-precision
approach guidance
Precision approach guidance (LP, LPV)
VHF Com Radio, 118.00 to 136.990, MHz, 8.33 or 25
kHz increments
VHF Nav Radio, 108.00 to 117.95 MHz, 50 kHz
increments
LOC and Glideslope non-precision and precision
approach guidance for Cat 1 minimums, 328.6 to 335.4
MHz tuning range
Moving map including topographic, terrain, aviation, and
geopolitical data
Display of datalink weather products, SiriusXM, FIS-B,
Connext (all optional)
Control and display of airborne weather radar (optional)
Display of terminal procedures data (optional)
Display of traffic data, including ADS-B (optional)
Display of StormScope
Display of marker beacon annunciators (optional)
Remote audio panel control (optional)
Remote transponder control (optional)
Remote audio entertainment datalink control (optional)
TSO-C151c Class B TAWS (optional)
Supplemental calculators and timers
Control of GSR 56 Iridium Satellite Phone and SMS Text
Control of Flight Stream 210 (optional)
Control of Flight Stream 510 (optional)
* Display of marker beacon annunciations on the GTN 6XX is only possible when installed with a
Garmin GMA 350 audio panel.
AFMS, Garmin GTN GPS/SBAS System
FAA APPROVED
®
data (optional)
Table 1 – GTN Functions
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X*
X*
X*
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
190-01007-A2 Rev. 6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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