The group's principal activities are to design, manufacture and market microwave equipment used in the reception of television programming transmitted from satellites and wireless terrestrial transmission sites and two-way transceivers used for wireless high-speed Internet-broadband service. The satellite business unit designs and markets reception products for the direct broadcast satellite television market in the United States and a line of consumer and commercial products for video and data reception. The wireless access business unit designs and markets integrated reception and two-way transmission equipment for broadband data and video applications. On 12-Apr-2004, the group acquired vytek corporation, a privately-held company that provides hardware and software products and services that enable both wireless and wireline access to video, voice and data.