Rigol DSA815, Руководство пользователя

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RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800/E Series
2-52
Meas Setup
Open the parameter setting menu of the function selected in the Meas menu. This
key is only available when a measurement function is enabled.
VSWR
Measurement Interface:
Figure 2-13 VSWR Measurement Interface
Measurerment Results: return loss, reflection coefficient and VSWR.

Return Loss: the formula is
) lg( 10 ) (
r i
P P dB RL
= . Wherein,
) ( dB RL
is the
return loss,
i
P
is the incident power and
r
P
is the reflected power.

Reflection Coefficient: the ratio of the reflected voltage to the incident
voltage.

VSWR: the ratio of the maximum voltage to the minimum voltage of the
standing wave.
This measurement requires the VSWR, VSWR bridge options and TG (DSA815-TG/
DSA832-TG/DSA875-TG/DSA832E-TG). Two measurements have to be performed