N9069C Noise Figure Measurement Guide 69
Measurement Related Tasks and Concepts
Setting the Signal Analyzer to Make a Measurement
Entering ENR Data from Internal Storage
If the noise source you are using has its ENR data previously stored on internal
memory, you can load this ENR data into the analyzer as follows:
Using a Spot ENR Value
A Spot ENR value can be applied across the whole measurement frequency
range, or when making a measurement in fixed frequency mode, you can enter
a specific spot ENR value corresponding to the fixed frequency.
To enable Spot ENR mode and enter a Spot ENR value:
Setting the T
cold
Value
When making measurements in different ambient temperature conditions you
can change the T
cold
value manually.
The default temperature value is set at 296.50 K (23.25° C or 73.85° F). The
T
cold
key is set to
Default
to confirm this default temperature.
To change the User T
cold
value manually, press
MEAS SETUP
,
ENR
,
TCold
Mode
to
User
,
User T Cold
, and then enter the T
cold
temperature, and press
K
.
To automatically load the SNS T
cold
value, first make sure that the SNS is
properly attached to the analyzer, then on the analyzer, press
MEAS SETUP
,
ENR
,
TCold Mode
to
Default,
and toggle
SNS T Cold
to
On
.
Step
Notes
1.
Press
Recall
,
ENR Table
.
2.
Press
Meas (Common) Table
,
Cal Table, Recall
From...
.
3.
Select the desired file from the list of saved ENR
tables and press
Recall
.
Step
Notes
1.
Press
MEAS SETUP
,
ENR
.
2.
Press
ENR Mode
to select
Spot
.
3.
In the Spot ENR box, press
Spot Mode
to select
ENR
.
4.
Enter an ENR value. The default value is 15.200 dB.
Instead of entering a Spot ENR value, you can also
use a Spot T
hot
value by pressing
Spot T Hot
and
entering a specific Spot T
hot
value. Then The Spot
value is applied across the whole measurement
frequency range.
Summary of Contents for CXA N9000B
Page 4: ...4...
Page 8: ...8 Contents...
