Getting Started
R&S
®
Spectrum Rider FPH
83
User Manual 1321.1011.02 ─ 06.00
The R&S Spectrum Rider opens an entry box to enter the frequency.
2. Enter the frequency of the signal.
3. Confirm the entry with one of the unit keys.
The R&S Spectrum Rider transfers the new frequency to the power sensor which then
corrects the measured power readings.
3.3.2.2
Measuring Power and Return Loss
With the directional power sensors R&S FSH-Z14 and R&S FSH-Z44, you can mea-
sure the power in both directions.
When you connect the directional power sensor between the source and the load, the
R&S Spectrum Rider measures the power from the source to load (forward power) and
from the load to source (reverse power).
The ratio between the forward and reverse power is a measure of the load matching.
The R&S Spectrum Rider displays it as the return loss or standing wave ratio.
The power sensors for the R&S Spectrum Rider have an asymmetrical design. There-
fore, they have to be inserted into the test setup in such a way that the "Forward" arrow
on the sensor points toward the load (in the direction of the power flux).
When measuring high powers, pay strict attention to the following instructions to avoid
personal injury and to prevent the power sensor from being destroyed.
Danger of skin burns and damage to the instrument
●
Never exceed the permissible continuous power.
●
See diagram on the rear of the sensor for the permissible continuous power.
●
Turn off the RF power to connect the sensor.
●
Screw the RF connectors tightly.
Test setup
Connect the power sensor cable to the USB port of R&S Spectrum Rider. If the power
sensor is having the binder connector (i.e R&S FSH-Z14, R&S FSH-Z44), the FSH-
Z144 adaptor cable is needed. Insert the directional power sensor between the source
and the load.
The power sensors for the R&S Spectrum Rider have an asymmetrical design. Hence,
you have to insert them into the test setup in such a way that the "Forward" arrow
(1
➙
2) on the sensor points toward the load (= in the direction of the power flux).
Trying Out the Instrument