LA19-15-04 instrument operates from 300 kHz to 8 GHz with sub Hz step size and with a 10 ppm settling time of 45 us for any size tuning step. It provides 0.1 Hz resolution, +17 dBm output with 30 dB of amplitude control. Linear and arbitrary (list) frequency and amplitude sweeps are supported. In addition, complex (phase and amplitude) sweep modes can emulate modulation schemes such as QPSK. External FM and AM modulation is also supported. The LA19-15-04 is available now.