Description

Features and Specifications of Keysight (Agilent/HP) 8720DX:

•  Frequency Accuracy: +/- 10 ppm
• Frequency Range: 50 MHz – 20 GHz
• Frequency Resolution: 1 Hz
• Output Impedance: 50 ohms
• Output Power Range: -70 dBm – +5 dBm
• Sweep Range: 0.01 dB

System dynamic range
These specifications apply to transmission measurements in the full frequency range at 10 Hz IF BW with response and isolation correction or full two-port calibration. Dynamic range is limited by maximum receiver input level and the receiver’s noise floor.

Measurement uncertainty
Curves show the worst-case magnitude and phase uncertainty for reflection and transmission measurements, after calibration. Calibration is the
process of measuring known standards from a calibration kit to characterize a network analyzer’s systematic (repeatable) errors.

Reflection measurement uncertainty is plotted as a function of S11 (reflection coefficient). Based on a one-port calibration, using specified calibration kit, with 10 Hz IF bandwidth and no averaging. Assumes a one-port device (S21=S12=0).

Transmission measurement uncertainty is plotted as a function of S21 (transmission gain/loss, in dB from reference level). Assumes a well-matched device (S11=S22=0). Based on a full two-port Short- Open-Load-Thru calibration (including isolation with averaging factor of 8), using specified calibration kit, with 10 Hz IF bandwidth and no averaging.

Measurement port characteristics
The characteristics indicate performance after error-correction (full two-port calibration). The performance accuracy is determined by the quality
of calibration standards and how well “known” they are, plus system repeatability, stability, and noise. Crosstalk is not shown, since isolation calibration will reduce crosstalk to the noise floor.