Garmin GMA 35 Installation Manual page 23

2.3.1.4 Marker Beacon Antenna Cable Installation
This section provides guidance for terminating the coaxial cable into the D-Sub connector. See the system
interconnect section for pin assignments.
NOTE
Use coaxial cable meeting the applicable aviation regulation for the marker beacon
antenna. Route the cable to the D-Sub as described in Section 2.3.1.3.
When terminating the coaxial cable into the D-Sub observe the following guidance (refer to Figure 2-1):
• Keep the distance from the end of the exposed shield to D-Sub as short as possible.
• Ensure the distance from the beginning of the exposed shield to D-Sub is no more than 1.5 inches
long.
• Terminate the center conductor by directly connecting it to the D-sub through a crimp pin
a pigtail.
Figure 2-1 below represents a suggested method for terminating the marker beacon coaxial cable using
M17/128-RG400 terminated into a high density D-Sub connector. Refer to Table 2-1 for Crimp Tool, Pin,
and Crimp Tool Insert part numbers.
Figure 2-1. GMA Marker Beacon Coaxial Cable D-Sub Termination
CRIMP TOOL
DANIELS MANUFACTURING CORP
DMC M22520/2-01 GAGE
AFM8 CRIMPING TOOL
190-00858-11
Rev. H
Table 2-3. Pin and Crimp Tool Part Numbers
PIN
Garmin Part Number
336-00021-00
Garmin Part Number
336-00044-00
GMA 35/35c Installation Manual
without
CRIMP TOOL
INSERT
K42
K774
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