Reichsbanner Schwarz-Rot-Gold Reichsbanner Schwarz-Rot-Gold The Reichsbanner Schwarz-Rot-Gold (, ""Black, Red, Gold Banner of the Reich"") was an organization in Germany during the Weimar Republic, formed by members of the Social Democratic Party of Germany, the German Centre Party, and the (liberal) German Democratic Party in 1924. Its goal was to defend parliamentary democracy against internal subversion and extremism from the left and right, to teach the population to respect the new Republic, to honor its flag and the constitution. Its name is derived from the Flag of Germany adopted in 1919, the colors of which were associated with liberal parliamentary democracy and
Rohde & Schwarz systems. In 2011, the company added voice communications systems for air traffic control (ATC) to its product offering. These systems are based on a product from Topex SA, a company in which Rohde & Schwarz acquired a majority interest in 2010. Rohde & Schwarz SIT GmbH develops crypto products and systems for government agencies, the German armed forces, authorities, the military and private industry. The subsidiary's high-security encryption technology is used for both wireless and wireline communications. As early as 2001, Rohde & Schwarz SIT set standards in secure mobile communications by launching the world's first crypto phone TopSec GSM.