Rohde & Schwarz R&S NRP, Operating Manual

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Remote Control - Commands R&S NRP
1144.1400.12 6.26 E-3
CALCulate[1..8]:MATH[:EXPRession][?] <string>
The
<string>
parameter may assume the following values (1, 2, 3 and 4 for
n
and
m
). A sensor must
be connected to the respective channel.
<string> Meaning
"(SENS1)"
"(SENS2)"
"(SENS3)"
"(SENS4)"
The calculate block outputs the measured value of sensor A.
The calculate block outputs the measured value of sensor B.
The calculate block outputs the measured value of sensor C.
The calculate block outputs the measured value of sensor D.
"(SENS
n
-SENS
m
)"
The calculate block outputs the difference between the measured values of sensor
n
and
sensor
m
.
"(SENS
n
+SENS
m
)"
The calculate block outputs the sum of the measured values of sensor
n
and sensor
m
.
"(SENS
n
/SENS
m
)"
The calculate block outputs the quotient of the values measured by sensor
n
and
m
.
"SWR(SENS
n
,SENS
m
)"
SENSn SENSm
SENSn SENSm
/ 1
/ 1
−
+
If sensor
n
measures the forward power of a wave and sensor
m
the reflected power, the
calculate block outputs the standing wave ratio of this wave. The output unit is set to percent
(
UNIT:RAT PCT
).
"REFL(SENS
n
,SENS
m
)"
SENSn SENSm /
If sensor
n
measures the forward power of a wave and sensor
m
the reflected/transmitted
power, the calculate block outputs the reflection coefficient/transmission factor of a DUT. The
output unit is set to percent (
UNIT:RAT PCT
).
"RLOS(SENS
n
,SENS
m
)"
SENSn SENSm / log 20
10
−
If sensor
n
measures the forward power of a wave and sensor
m
the reflected/transmitted
power, the calculate block outputs the return loss/transmission loss of a DUT. This function
principally supplies the same result as the (SENS
n
/SENS
m
) function. The difference is that
the output unit is automatically set to dB.
(
UNIT:RAT DB
).
This command selects a measurement function that processes one sensor or two together. The result
of this calculation is made available as a measured value and can be queried with
FETch[1..8]?
or
CALCulate[1..8]:DATA?.
*RST
value:
CALC1:MATH "(SENS1)"
,
CALC2:MATH "(SENS2)"
,
CALC3:MATH "(SENS3)"
,
CALC4:MATH "(SENS4)"
,
CALC5:MATH "(SENS1)"
,
CALC6:MATH "(SENS1)"
,
CALC7:MATH "(SENS1)"
,
CALC8:MATH "(SENS1)"
.
Error messages:
-151 "
Invalid string data
": An invalid
<string>
parameter was transmitted.