Agilent/HP / Network Analyzer / 4396B/706/800 
Key Features High-performance network, spectrum, and impedance analyzers in a single box Built-in IBASIC GPIB port, digital I/O port Network Analysis Frequency range: 100 kHz to 1.8 GHz 120 dB dynamic range @ 10 Hz IFBW +/- 0.05 dB, +/- 0.3 degree dynamic accuracy Spectrum Analysis Frequency range: 2 Hz to 1.8 GHz -147 dBm/Hz sensitivity @ 1 GHz Lower than +/- 1.0 dB level accuracy Time-gated spectrum analysis option (4396B-1D6)