VAL Avionics NAV 2000 Guia de Instalação descarregar pdf (Página 326)

SV-COM-X83 Installation, Configuration, and Testing

17-20 SkyView System Installation Guide - Revision R

 Avoid routing the cable around tight bends.

 Avoid kinking the cable even temporarily during installation.

 Secure the cable so that it cannot interfere with other systems.

Antenna TNC Connector

BNC connectors are more common for COM radio installations than TNC

connectors. TNC male to BNC female adapters such as Amphenol P/N 242149 are

readily available and inexpensive and will allow an antenna system terminated in a

BNC male connector to be used with the SV-COM-T8.

This section describes the technique for attaching the antenna cable to a TNC connector. A TNC

connector is not supplied with the SV-COM-X83. The SV-COM-T8 has a female TNC connection.

Therefore, you will need to source a male TNC connector that is compatible with the antenna

cable type that meets your aircraft’s needs.

A dual crimp style TNC connector can be completed using a wide range of commercial crimp

tools (for example the Tyco 5-1814800-3). The die apertures for the inner pin and the outer

shield should be approximately 1.72 mm and 5.41 mm respectively.

 Strip back the coax cable to the dimensions in the table, as shown in the diagram below.

Slide 25 mm (1 inch) of heat shrink tubing over the cable.

 Slide the outer crimp sleeve over the cable – it must go on before securing the center

contact.

Dimension

Cut size

(mm)

Cut size

(inches)

17.5

0.69

7.2

0.28

4.8

0.19

 Crimp the center contact to the cable.

 Insert the cable into the connector – the center contact should click into place in the body,

the inner shield should be inside the body of the connector and the outer shield should be

outside the body.

 Crimp the outer sleeve over the shield.

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VAL Avionics NAV 2000 Guia de Instalação Página 326