Rohde & Schwarz EMI Test ReceiverESCI - Reflection Measurement; Calibration of Reflection Measurement

R&S ESCI External Generator Control - Configuration
1166.6004.12 4.296 E-1
Reflection Measurement
Scalar reflection measurements can be carried out by means of a reflection-coefficient bridge.
0
123
456
789
.
-
ESC
1142.8007.03
FCTN
ENTER
CANCEL
GEN OUTP UT 50 Ω
ΩΩ
Ω
AF OUTPUT
MEAS TRIG
FREQ
MKR
AMPT
SPAN
MKR
MKR
BW SWEEP
TRACE
LINES
DISP
FILE
GHz
MHz
kHz
Hz
-dBm
dBm
dB
dB..
CAL
SET UP
PRESET
HCOPY
TEST RECEIVER 9kHz . . . 3GHz
..
ESPI
BACK
s
V
m
s
mV
µ
s
µ
V
n
s
nV
PREV
RF INPUT
50
EXT MIXER
MA
X
+30 dBm / 50V DC
NEXT
KEYBOARDPROBEPOWER
MAX 0V DC
MADE IN G ERMA NY
.
Ω
ΩΩ
Ω
RF
INPUT
GEN
OUTPUT
DUT
Mess-
brücke
Fig. 4-40 Test setup for reflection measurement
Calibration of Reflection Measurement
The calibration mechanism essentially corresponds to that of the transmission measurement.
NETWORK-SOURCE CAL submenu
CAL REFL
OPEN
The CAL REFL OPEN softkey starts the open-circuit calibration. During
calibration the following message is displayed:
IEC/IEEE-bus command CORR:METH REFL
CORR:COLL OPEN
CAL REFL
SHORT
The CAL REFL SHORT softkey starts the short-circuit calibration.
If both calibrations (open circuit, short circuit) are carried out, the calibration
curve is formed by averaging the two measurements and stored in the
memory. The order of measurements is optional.
After the calibration the following message is displayed:
The display is cleared after approx. 3 seconds.
IEC/IEEE-bus command CORR:METH REFL
CORR:COLL THR