19
The Cable Null function opens a series of screens to “Calibrate” the attached test lead, antenna feed
line and/or any adapters along with the instrument to remove them from the measurements. It can
also be used to perform an instrument only calibration by attaching the required terminators directly to
the instrument’s N connector. If this type calibration is used, any adapters, test leads or antenna feed
line will be part of the measurement test results which may or may not be desired.
Calibration Sequence Screens
Pressing ENTER after the Load is attached completes the calibration process for single-port
measurements, and will return the MRI-3000 to the previously selected measurement screen.
For two-port (S21) measurements, a fourth prompt screen will prompt you to attach a through cable
from S11 to S21 before finishing.
Caution: Pressing <ESC> at any time while this process is in progress will leave the instrument in an
un-calibrated state.
MRI-3000 VNA Measurements
General Information
VNA PLOT - Vector Network Impedance Analysis
S11 VNA SCREEN
