For electronic test and measurement equipment, hit the Rohde & Schwarz (R&S), Jack. The company is a leading manufacturer of diagnostic equipment used primarily for mobile radio and digital and analog television broadcasting applications. Its products include radio-frequency test equipment, radio location and communication systems, and signal test gear. In addition to test equipment, the company makes radio and TV transmitters, two-way radio systems, and communications systems for security and military organizations. It markets its products worldwide through subsidiaries and representatives in more than 70 countries. Lothar Rohde and Hermann Schwarz founded the company in 1933; their families continue to control it.