Instrument Functions
R&S
®
FSVA/FSV
538Operating Manual 1176.7510.02 ─ 09
4. Enter the average of the conversion loss.
The entered average value is taken into account for the spectrum display irrespec-
tive of the frequency. The precision that can be obtained depends on the frequency
response of the mixer. With this type of level correction, measurements can be
easily performed at single frequencies.
3.8.3.3 Taking into Account the Cable Loss in the IF Path
On performing level correction, the conversion loss of the mixer and also the insertion
loss a
0
of the cable used to tap off the IF signal are to be taken into account. This addi-
tional loss is frequency-dependent.
1. Determine the insertion of the cable at the intermediate frequency f
IF
= 729.9 MHz.
2. For level correction with average value, add the cable insertion loss to the average
conversion loss.
For frequency-dependent level correction, increase each reference value by the
insertion loss to the same extent. To do so, you can enter the cable loss using a
transducer table. Such a table should only contain two reference values (band start
and end) for which a
0
is specified.
3.9 Instrument Functions - Power Sensor (R&S FSV-K9)
For precise power measurement up to 4 power sensors can be connected to the instru-
ment via the power sensor interface (option R&S FSV-B5, front panel) or the USB con-
nector (front or rear panel). The Power Sensor Support firmware option provides the
power measurement functions for this test setup. Both manual operation and remote
control are supported. The power sensor results are displayed in the marker table.
Instrument Functions - Power Sensor (R&S FSV-K9)
To Next Page
Loading...
