Agilent/HP / Signal Generator / E4426B 
Frequency range: 250 kHz-4 GHz
Underrange: 100 kHz
Resolution: 0.01 Hz
Power requirements: 90 to 254 V; 50, 60, or 400 Hz; 200 W maximum
High spectral purity
Flexible architecture, upgrade paths for options
Choice of electronic ormechanical attenuator
Superior level accuracy
Wideband FM and Phase Modulation, AM and Pulse Modulation
Step sweep (frequency, power and list)
Built-in function generator
Lightweight, rack-mountable