ANTENNA WIRE SAG AND TENSION CALCULATIONS,
GROUND ELECTRONICS ENGINEERING INSTALLATION AGENCY GRIFFISS AFB N Y
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The report reviews some of the basic concepts of sag in cables associated with antenna structures. Although the function of antenna wires is to provide an electronic transmitting or receiving medium, the wire or cable also has a structural task. Under conditions of least loading, this wire must still support its own weight when additional loadings caused by wind and ice are added, these cables or wires actually perform as structural catenaries. More complex stresses can be caused by vibration, temperature change, deformation under load, and by pre-stress. The report is concerned primarily with rhombic antennas, both horizontal and sloped. The effect of sag and tension of cables on the supporting towers or poles is discussed.