A microwave signal generator produces a precise RF or microwave frequency output — typically ranging from a few kHz to tens of GHz — that serves as a reference or stimulus signal in test setups. Engineers use them to characterize amplifiers, test receivers, simulate radar signals, verify satellite link budgets, and calibrate spectrum analyzers. BNC’s signal generators cover 100 kHz to 54 GHz and are widely used in defense, aerospace, quantum computing, and telecommunications R&D.