TC 9-64 _________________________________________________________________________
terminated by a noninductive resistor to produce a unidirectional pattern. A
rhombic antenna can be made of two obtuse-angle V antennas that are placed
side by side, erected in a horizontal plane, and terminated so the antenna is
nonresonant and unidirectional. The rhombic antenna is widely used for long-
distance, high-frequency transmission and reception. It is one of the most
popular fixed-station antennas because it is very useful in point-to-point
Figure 4-38. Basic Rhombic Antenna
4-165. Advantages. The rhombic antenna is useful over a wide frequency
range. Although some changes in gain, directivity, and characteristic
small enough to be ignored.
4-166. The rhombic antenna is much easier to construct and maintain than
of common heights from 15 to 20 meters are needed for the antenna.
4-167. The rhombic antenna also has the advantage of being noncritical as
far as operation and adjustment are concerned. This is because of the broad
frequency characteristics of the antenna.
4-168. Still another advantage is that the voltages present on the antenna
are much lower than those produced by the same input power on a resonant