The Agilent 8720ES Vector Network Analyzer allows complete characterization of RF and microwave components. The 8720ES includes an integrated synthesized source, test set and tuned receiver. The built-in S-parameter test set provides a full range of magnitude and phase measurements in both the forward and reverse directions. Built-in vector accuracy  enhancement techniques include full two-port, adapter-removal, and optional TRL calibration.

Some featrues of the Agilent 8720ES
S-Parameter Netork Analyzer are:

50 MHz to 20 GHz

100 dB of dynamic range

Excellent measurement accuracy

Two measurement channels

Four display channels

Frequency and power sweeps

Fast sweep and data transfer speed

Pass/Fail testing, powerful marker functions

Electronic calibration (ECal)

Internal automation with test-sequencing

Optional time-domain, high power test set, four samplers and TRL calibration, direct sampler access, frequency-offset mode