R&S
FS-K30
Measurements & Settings
ENR
Settings
Software Manual 1300.6637.42 - 03
69
2.6.2 ENR Settings
The main settings are those that affect the overall use of ENR values during calculations.
2.6.2.1 Selection
Selection
should be set to Constant if one ENR value is to be used for all frequencies.
In this case, the
ENR Constant
value will be used across the entire frequency range
and the ENR List will be ignored.
When
Selection
is set to Table, R&S FS-K30 will use the Table of ENR values on the right
of the view to calculate the ENR value to be used for each specific
RF
frequency at which a
measurement is performed. The
ENR
Constant
value will be ignored and will not be selectable.
2.6.2.2 ENR Constant
ENR Constant
is the constant ENR value of the noise source that is to be used across the
entire frequency range. This parameter is only available when
Selection
is set to Constant.
2.6.2.3 Room Temperature
Room Temperate
is the current room temperature as an absolute value in Kelvin. This
is used in the calculation of the noise results.
2.6.3 ENR Table
The
ENR table
lists the ENR values of the noise source for different Receive Frequency
(
RF)
values. The manufacturer of the noise source normally supplies this list of values.
R&S FS-K30 will interpolate between points in the list for
RF
values used in a
measurement that are not explicitly entered in the ENR table.
When focus is moved to the ENR table on the right of the view, navigation through the
table is possible in all four directions using the cursor keys.
It is possible to add individual values directly into the ENR List, including insertion and
deletion of
RF/ENR
value pairs (rows in the list). The list can contain up to 100
RF/ENR
value pairs. Note that the order of
RF
values in the list is not important.
ENR tables can also be saved and recalled at any time by pressing the
FILES
hardkey.
This allows specific ENR Lists to be saved for later use. Refer to section
for
details of how to use Save & Recall.
