Optional Reference Material; Installation Materials Required But Not Supplied; Table 4-4 Optional Reference Material - Garmin GTR 225 Installation Manual

4.3 Optional Reference Material

GDU 620 Installation Manual
GNC 255A/255B Pilot's Guide
GTR 225/225A/225B Pilot's Guide

4.4 Installation Materials Required but not Supplied

4.4.1 Accessories Required but Not Supplied
The following installation accessories are required but not provided.
Item
COM antenna
NAV antenna
Glideslope antenna
Headphones
Microphone
4.4.2 Materials Required but Not Supplied (New Installations Only)
The GTR/GNC is intended for use with the standard aviation accessories. The following items are required
for installation, but not supplied:
 Wire (MIL-W-22759/16 or equivalent)
 Shielded wire (MIL-C-27500 or equivalent)
 Hardware
◦ #6-32 x 100° flat head SS screw (MS24693, AN507R or other approved fastener
(6 ea.))
◦ #6-32 self-locking nut (MS21042 or other approved fastener (6 ea.))
 Push/pull (manually resettable) circuit breakers
 Tie wraps or lacing cord
 Ring terminals (for grounding)
 Coaxial cable (RG-400, RG-142B or equivalent. See table 4.8 for additional information)
190-01182-02
Rev. F

Table 4-4 Optional Reference Material

Item
Meets TSO-C37( ) and C38( ) or TSO-C169( )
Ω
50 , vertically polarized with coaxial cable
Meets TSO C40( ) and C36( ). 50
coaxial cable
If the NAV antenna is a combined VOR/LOC/GS antenna, it must
meet TSO C40( ), C36( ), and C34( )
Meets TSO C34( ). 50
low-loss splitter used with the VOR/LOC antenna
Ω
500 nominal impedance
Low impedance, carbon or dynamic, with transistorized pre-amp
Requirements
Ω
, horizontally polarized with
Ω
, horizontally polarized with coaxial cable or
GTR 225/GNC 255 TSO Installation Manual
Garmin P/N
190-00601-04
190-01182-01
190-01182-00
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