Page 247 - Satellite Communications, Fourth Edition

The Space Segment 227

Figure 7.22 The antenna subsystem for the INTELSAT VI satellite. (Courtesy of Johnston
and Thompson, 1982, with permission.)

band. The polarization separation takes place in a device known as an
orthocoupler,or orthogonal mode transducer (OMT). Separate horns
also may be used for the transmit and receive functions, with both horns
using the same reflector.

7.9 Morelos and Satmex 5
Figure 7.24 shows the communications subsystem of the Mexican satel-
lite Morelos. Two such satellites were launched, Morelos A in June and
Morelos B in November 1985. The satellites are from the Hughes 376