E4421A

Agilent E4421A Signal Generator

The Agilent E4421A Signal Generator can perform exceptionally repeatable and exact computerized estimations. With this model, the user can achieve an error vector size of more than 2% rms for signals π/4DQPSK, a global phase mistake of 0.8 ° rms for GMSK signals, and a deviation 6.1 kHz precision for GFSK signals. The user can also execute an I/Q adjustment on the desired test frequencies to expand the exactness of the estimation and repeatability. Toward the end, the alignment results commonly stay substantial for 30 days, when the instrument is operated inside ± 5 ° C of the adjustment temperature.

The Agilent E4421A allows the user to drive the I/Q inputs with analog signals to create complex modulation formats, (BPSK, QPSK, and 64 QAM) which are required for the improvement and testing of RF computerized communications frameworks. An inherent quadrature modulator forms the I/Q input signals to give better exactness and stability over a 26 MHz RF data transfer capacity (13 MHz baseband I/Q). In addition, inside I/Q modulator adjustment schedules produce controlled and repeatable signals that limit estimation mistakes.

This model offers a coherent carrier output, so the user can simplify the coherent detection of computerized baseband signals. Utilizing the coherent carrier output as a prospective signal wipes out the requirement for complex demodulation methods. The coherent carrier output offers recurrence and phase data about the transmitted carrier, covering transporter frequencies from 250 MHz to the most extreme instrument frequency with a 0 dBm (±5 dB) output level.