Getting Started
R&S
®
UPV
110
Getting Started 1146.2078.62 ─ 09
a) A default reference value of 1
V is set in the Reference field.
This value must be replaced by the output voltage value of the DUT measured
with the reference frequency of 1
kHz.
The R&S
UPV offers a very simple way of doing this:
If the parameter list is opened in the "Reference" field, it is possible to select
the setting "Ref
1000
Hz". With this setting, the value measured at this fre-
quency is determined (if necessary by means of interpolation between the
measured values at the two adjacent frequencies) and used as the reference
value.
b) All that remains is to select the unit dBr in the "Unit Fnct Track" field. All mea-
sured values are then displayed in dB relative to the reference value selected
above. This satisfies the standards defining frequency response measurement.
c) The y
‑
axis must now be scaled according to requirement, e.g. from +20 dBr to
–20 dBr.
Introduction to Instrument Operation Using Examples