Spectrum Analyzer Mode
R&S
®
Cable Rider ZPH
250
User Manual 1321.0950.02 ─ 07
Figure 8-14: Transducer factors displayed
You can create and edit transducer factor with the R&S InstrumentView software pack-
age and then transfer them into the internal memory of the R&S Cable Rider ZPH.
Each transducer factor may consist of up to 1000 reference values.
For more information on transducer factors, see
Chapter 5.9, "Managing Datasets"
,
on page 107.
Interpolation between the values is performed with the aid of a modified spline algo-
rithm. Even if only relatively few values such as maxima, minima and turning points are
available, this algorithm can easily simulate the correction factors of common transduc-
ers. Two transducers can be switched on at a time. The second transducer must be
assigned the unit dB. The R&S Cable Rider ZPH adds the two transducers to a total
transducer.
Units supported for transducer factors:
●
dB
●
dB
µ
V/m
●
dB
µ
A/m
●
W/m2
The unit dB does not change the unit set on the R&S Cable Rider ZPH. It can be used,
for instance, to compensate for frequency-dependent loss and gain at the input of the
R&S Cable Rider ZPH. The units dBμV/m and dBμA/m convert the output power of an
antenna into electric or magnetic field strength. The unit W/m2 is used to calculate and
display the power flux density.
For example, to compensate for the cable loss between the transducer and the RF
input, the R&S Cable Rider ZPH can use two transducers at the same time. One of
them must have the unit dB, however, i.e. it must correspond to one loss or gain value.
1. Press the [SCALE/AMPT] key.
2. Select the "Transducer" softkey.
Using Transducer Factors
