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2.4.2 Routing Coaxial Cable and Flexible Waveguide
In the case of the three-unit system consisting of the display unit, transmitter-receiver, and the
scanner, use a Coaxial cable, shown in Fig 2-10 , between the transmitter-receiver and the
scanner for the S-band, and use a Flexible waveguide, shown in Fig 2-11, for the X-band.
1) Protecting coaxial cable and flexible waveguide
• Since cables and waveguides are hollow inside, when mounting them by
using electric wire bands, try not to fasten the bands too tightly around the
cables and waveguides. If they are fastened too tightly, the inside will
become deformed or blocked, which may cause the receiving sensitivity to
decrease or the transmitter-receiver to be damaged.
Fig.2-7 Coaxial cable Fig.2-8 Flexible waveguide
• Stabilize the coaxial cable and the flexible waveguide by supporting members
that are at maximum intervals of 1000 millimeters. Mount a supporting
member for the horizontal wiring portion on the compass deck at an angle of
300 to 400 millimeters, and put a protective metal cover over the cable and
waveguide.
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