R&S 1129.7246.03, Руководство по эксплуатации

Страница: 352 / 855

Operating Manual 1302.6163.12 - 03 4.321
R&S ESU Instrument Functions
Tracking Generator – Option R&S FSU-B9
The permissible setting range is -200 dB to +200 dB in steps of 0.1 dB. Positive off-
sets apply to an amplifier and negative offsets to an attenuator subsequent to the
tracking generator.
The default setting is 0 dB. Offsets <> 0 are marked by the activated enhancement
label
LVL .
Remote command:
SOUR:POW:OFFS -10dB
4.10.2 Transmission Measurement
This measurement will yield the transmission characteristics of a two-port network.
The built-in tracking generator serves as a signal source. It is connected to the input
connector of the DUT. The input of the R&S ESU is fed from the output of the DUT.
Fig. 4.20 Test setup for transmission measurement
A calibration can be carried out to compensate for the effects of the test setup (e.g.
frequency response of connecting cables).
4.10.2.1 Calibration of Transmission Measurement
SOURCE CAL
The SOURCE CAL softkey opens a submenu comprising of the calibration functions
for the transmission and reflection measurement.
CAL TRANS
CAL REFL SHORT
CAL REFL OPEN
NORMALIZE
REF VALUE POSITION
REF VALUE
RECALL
SAVE AS TRD FACTOR