E5072A ENA series Network Analyzer
Specification:
1, 2-port 30KHZ to 4.5 GHZ and 8.5GHZ
2, Configurable tester
3, High Output Power (to +20dBm)
4, Dynamic Range can be extend (to 151dB)
5, Fast measurement speed: Full 2-port calibration, scanning 401 points is 7ms
6, Low noise traces: 0.004dB rms at 70KHZ IFBW
7, High temperature stability: 0.005dB/°C 
8, Built-in Visual Basic for Applications(VBA)
9, Compatility: E5071C and 8753 series