Odyssey Telecommunications, the Big Low-Earth-orbit venture backed by TRW Inc. [TRW] and Teleglobe Inc., announced its first local partnership this month, a memorandum of understanding with China Telecommunications Broadcast Satellite Corp. Odyssey officials said that while mobile service is a component of com pany strategy, the plan is to build a solid base of fixed users, in part because fixed antennas require less signal strength and allow more users. As a result, Odyssey’s key markets will be in countries with large fixed wireless demand, such as Brazil, China, India and Indonesia. The pact also highlights increased public support of Odyssey by top TRW executives, a phenomenon not always as evident in the past. (Odyssey, 310/812-5227.)