MXG Analog Signal Generator, Opt.: 503 = 100kHz-3GHz; 1EQ = Low Power (<-110dBm); UNT = AM, FM, Phase Modulation; UNU = Pulse Modulation; UNZ = Fast Switching The N5181A is a MXG Analog Signal Generator and generate RF test signals up to 3 GHz. Selecting Option 503 equips the Agilent (now Keysight) MXG analog to generate signals in a 100 kHz to 3 GHz frequency range. Option 503 is recommended for test cases that require CW and analog modulated RF test signals at or below 3 GHz carrier frequencies. Common signal generation uses include LO and clock substitution, interference generation, and reference signal generation for analog components and receivers. Covers the cellular and lower ISM frequency bands Frequency resolution: 0.01 Hz Phase noise performance: -116 dBc/Hz at 1 GHz carrier, 20 kHz offset Output power: +23 dBm at 2 GHz with electronic attenuator Frequency switching speed: 5 ms standard (SCPI mode & list mode) or 1.15 ms (SCPI) and 900 us (list) with option UNZ TCXO time base reference provides excellent frequency accuracy and drift characteristics