4
Measure 1-Port Cable Loss (CAT Mode)
Required Equipment:
LOAD with correct connector type and gender to
terminate the end of the DUT.
Optional phase stable jumper cable or adapter to
connect the beginning of the DUT to the FieldFox.
1.
Press
Preset
then
Preset
2.
Then
More
then
Cable Loss (1-Port)
3.
Connect the DUT.
4.
Press
Freq/Dist
and enter
Start
and
Stop
frequency values of the measurement.
5.
Press
Sweep 3
then
Min Swp Time
Increase the
sweep time until a stable trace is visible on the
screen.
6.
Press
Cal 5
then follow the calibration prompts.
7.
Connect the DUT (cable to be tested) to the FieldFox
and connect a LOAD at the end of the DUT.
Depending on the DUT, the following three steps may
improve the amount of ripple visible on the screen.
8.
Press
Trace 6
then
Math and Memory
, then
Data->Mem
.
9.
Remove the LOAD and leave the end of the DUT
open.
10.
Press
Data Math
then
Data
– Mem
. Use Averaging
for high-loss measurements. Press
BW 2
then
Averaging
11.
Read Avg Cable Loss on the FieldFox screen.
