TM 11-5895-846-14
(3) The common port of the orthogonal mode
assembly is a splash plate that reflects the RF energy
transducer will accommodate a signal acceptable to
over the surface of the parabolic reflector. The reflector,
either of the other ports. This port couples to a circular
polarizer section which will accept the signal from the
narrow beam about one degree wide at the half-power
transmit port and convert it to a right-hand, circularly-
points. A received signal follows the same path in the
polarized signal. This is an RF signal whose electric field
reverse direction. Energy coming into the polarizer
appears to be rotating clockwise when viewed toward the
toward the OMT will be left-hand circularly polarized, and
direction of travel. The transmit signal out of the
when it passes through the polarizer will be in the proper
polarizer enters the feed tube assembly where it is
orientation to enter the OMT and pass through to the
further processed. At the front end of the feed tube
receive port.
EL6PE069
Figure 6-15. Basic Antenna Operation.
6-27