R&S NRP2, Руководство пользователя

Страница: 230 / 437

Remote Control - Commands
R&S
®
NRP2
212 User Manual 1173.9157.02 ─ 03
<expected_value> Value range: float_value | DEF
According to the SCPI-1999.0 standard, a value in the order of the expected
measured value can be specified. This allows the device to set an adequate mea-
surement range. This is not required in the R&S
NRP2 because the measurement
is performed simultaneously in all measurement ranges. Any value can therefore
be specified for the expected_value parameter, especially the DEFault value. The
value is always ignored.
<no_slots> Value range: depending on sensor
Default value: depending on sensor
Unit: -
Number of timeslots to be measured in the Timeslot mode. Corresponds to com-
mand:
​
[SENSe<[1]..4>][:
​
POWer]:
​
TSLot:
​
COUNt
​
on page 275.
<resolution> Value range: 1 | 0.1 | 0.01 | 0.001 |
1 | 2 | 3 | 4
Default value: 3 (0.01)
Specifies the limit up to which the measurement result should be free of noise.
The R&S
NRP2 tries to set an adequate window for the averaging filter. This does
not affect the accuracy of the measured data. The window can only be set if auto-
matic setting of the filter window has not been disabled by the user
(
SENSe:AVERage:COUNt:AUTO OFF
). Since the automatic setting is activated
by
CONFigure
and
MEASure?
as a default, the user normally does not need to
alter this setting. Corresponds to commands:
​
[SENSe<[1]..4>]:
​
AVERage:
​
COUNt:
​
AUTO:
​
RESolution
​
on page 263.
​
DISPlay[:
​
WINDow]<[1]..4>:
​
RESolution
​
on page 243.
Example:
If
<resolution>
is set to 3 or 0.01, three significant points are assigned to the
value when it is displayed on a linear scale. When a log scale is used, 2 places
are displayed after the decimal point.
<scope_size> Value range: depending on sensor.
Default value: depending on sensor.
Unit: -
The number of test points on the time axis. Corresponds to command:
​
[SENSe<[1]..4>]:
​
TRACe:
​
POINts
​
on page 289.
<source_list>
Value range: (
@
n) | (
@
n),(
@
m)
Default value: (
@
1) or (
@
1),(
@
2)
n and m may assume the values 1, 2, 3 or 4.
With this list, sensors are assigned to the primary and possibly to the secondary
channel of a calculate block. The number for each sensor is preceded by the
character
@
and the entire expression is enclosed in parentheses.
Examples:
(
@
1)is used for sensor A.
The values (
@
3),(
@
2) are set for <source_list>. Sensor C is assigned to the pri-
mary channel and sensor B to the secondary channel. The calculate blocks proc-
ess the primary channel together with the secondary depending on the desired
function. If
:RATio
is selected as the calculation function, the result from the
calculate block is the ratio of the values measured by sensor C and sensor B.
High-Level Measurement Commands (CONFigure, MEASure, READ and FETCh)