Chapter 11 Cable Loss Operation
Setting up the level parameters
9102 Handheld Spectrum Analyzer Software version 5.31
179
4 When calibration is completed the Reflection main menu will be
displayed again. On the lefthand side of the results display the cali-
bration icon will now be displayed in green and read “Calib’d“ (Cali-
brated).
The measurement graph shows full reflection (0 dB cable loss) as soon
as the calibration set is removed. The instrument is now ready for
starting the cable loss measurement.
Setting up the level parameters
Setting the reference
level
1 In the main menu, push the Ref. softkey or select Level followed by
Ref. Alternatively, push the REF function key.
The Reference Level input field opens.
2 Enter the new reference level either using the numeric keys,
closing the input field with the appropriate enter key, or with the
U
P/DOWN arrow keys.
The new reference level appears at the top of the vertical axis. The
reference is based on the actual set output power.
Changing the vertical
scale
The scale for the vertical axis (power) can be changed in the range
from 1 to 20 dB per division (vertical line in the displayed grid) in 1-3-
5 steps as follows:
1 In the main menu, select
Level.
2 Push the
Scale softkey.
The Scale input field opens.
3 Select a new scale by entering a new number of dB per division
numerically and pressing the E
NTER or MHZ/DB/ΜS key, or by
pushing the U
P/DOWN cursor keys.
NOTE
When performing a number of measurements it can be necessary to
repeat the calibration process due to temperature changes etc. This
is a regular behaviour. Furthermore, if you change the frequency
band, calibration has to be repeated. As soon as calibration is nec-
essary the 9102 will inform you by displaying the red “Calibrate“
icon.
To Next Page
Loading...
