R&S ESU Series Operating Manual page 50

R&S ESU
Display Unit
dBµV | In the side menu, the desired units for the level axis can be selected: dBµV, dBm,
dBm | dBµA, dBpW, dBpT or dBmV. Default setting is dBµV.
dBµA |
In general, a receiver measures the signal voltage at the RF input. The level display
dBpW |
is calibrated in rms values of an unmodulated sinewave signal.
dBpT |
Via the known input resistance of 50 Ω a conversion can be made to other units. The
dBmV |
dB*/MHz units dBµV, dBm, dBµA, dBpW, dBpT and dBmV are directly convertible.
The dB*/MHz softkey activates/deactivates the display of results in units relative to
the bandwidth. These units are derived from the logarithmic units dBµV, dBµV/m,
dBµA and dBµA/m:
Unit
dBµV
dBµV/m
dBµA
dBµA/m
dBpW
dBpT
dBmV
Switching over is possible also if a transducer fixes the unit to be used.
Conversion to 1 MHz is via the pulse bandwidth of the selected resolution bandwidth
B
imp
with P = display level; other combinations are not allowed.
Remote command:
RF INPUT The RF INPUT AC/DC softkey switches between AC and DC coupling of the instru-
AC | DC ment input. The state of the input coupling is displayed with an enhancement label
on the right side of the diagram.
Operating Manual 1302.6163.12 - 03
Relative unit
dBµV/MHz
dBµV/mMHz
dBµA/MHz
dBµA/mMHz
dBpW/MHz
dBpT/MHz
dBmV/MHz
according to the following equation (example for dBµV):
CALC:UNIT:POW | DBUV_MHZ | DBUA_MHZ |
DBMV_MHZ
Instrument Functions
Receiver Mode
4.19