Function of the Status LED
R&S
®
ZN-Z103
6
User Manual 1321.2276.02 ─ 02
Excessive Input Power
If you use an external power amplifier, make sure that the maximum RF
input power of the calibration unit quoted in the data sheet is never excee-
ded.
4
Function of the Status LED
The LED on top of the calibration unit informs about the actual status of the
device. The different states have the following meaning:
OFF
The calibration unit is not connected or defective.
Red
The microcontroller is running but there is no USB communication with the
network analyzer. With an actual network analyzer firmware this status should
only appear for a short time after connecting the calibration unit.
Green
The calibration unit is ready use.
Blinking orange Data transfer between the calibration unit and the network analyzer. Do not
disconnect the USB cable.
Blinking blue
Calibration in progress.
5
Performing an Automatic Calibration
The analyzer uses a reflection calibration type (e.g. Full One Port / Refl OSM).
For details refer to your analyzer’s operating manual or help system.
After establishing an
USB Connection to the Analyzer
and initialization, you can
use the calibration unit as follows:
1. Connect an RF port of the analyzer to the RF port of the calibration unit.
2. Perform the reflection calibration of the selected port using the automatic cali-
bration function of the analyzer. For details refer to the analyzer’s operating
manual or help system.
