The Keysight Agilent HP 3325B provides the frequency accuracy, resolution, and stability that are ideal for applications such as crystal filter test, multiplexed communication system testing, clock/timing simulation and audio frequency system testing. Exceptionally linear triangles and ramp signals are produced with synthesized accuracy and stability for applications such as VCO testing or process control. The DC-to-21 MHz frequency range (sine) makes the Keysight Agilent HP 3325B ideal for high-performance video system testing. Pure sine waves or high quality squarewaves can be combined with up to ±5V of DC offset to interface with biased circuits or for stimulus in digital environments. In modulation applications, this model provides the carrier for a modulation source, or use the internal modulation source to get modulated signals from the generator alone.