User's Manual

Transmission Line Measurements
For design verication, use of an S‑Parameter Network Analyzer, such as Agilent 8719S
may be used to characterize the losses of the transmission line. Solder a calibrated coaxial
cable to pin 16 (RF900, RF I/O port) pin on the PCB to make the following measurements.
Path loss measurements, S12.
Line input impedance (Smith chart format) once the line has been terminated with a 50
ohm load is shown below.