MXS System Description and Installation Manual UM06945
© Sagetech Avionics 2022 Proprietary Confidential Page 23 of 56
Table 4-5 Example Antennas
4.4 Routing and Connecting the Antenna Cable
Attach the antenna cable to the antenna SMA connector(s) shown in Figure 4-2.
A suitable antenna cable consists of a male SMA connector, a length of co-axial cable, and a suitable
connector for the antenna. For example, if using a simple monopole antenna with a BNC female
connector, the antenna cable will need a BNC male connector. A cable part number for this example is
provided in Table 4-6.
Table 4-6 Antenna Cable Connector Parts
The antenna cable must have no more than 2dB of signal loss from the MXS to the antenna. This includes
losses in the connector and cable. Generic and custom-built cables can be obtained from suppliers such
as Pasternak, Richardson, and Aircraft Spruce.
Maintain coax cable minimum bend radius per manufacturers specifications.
4.5 Connecting the Altitude Sensor/Encoder to the System Static Pressure
MXS’s integral pressure sensor and encoder can provide altitude data for Extended Squitters and
interrogation replies when the altitude encoder port (see Figure 4-3) is connected to the aircraft static
pressure source.
Plumb the altitude encoder connection to a static pressure line that shares the same source as the main
aircraft altimeter. The pressure barb is sized 0.18" (or 3/16”) Internal Diameter (ID) tubing. A typical
installation will have a T or Y fitting in the static pressure line with one end running to the MXS. Suitable
Y-barbed tube fittings are available from suppliers such as McMaster-Carr.
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