HP HP 8712ET, Руководство пользователя, Страница: 65 / 480

ET User’s Guide 3-13
Making Measurements
Using the BEGIN Key to Make Measurements
• Press (Option 100 only) if you want to measure the
structural return loss of a cable. (The selection is under the
menu.)
• Press (Option 100 only) if you want to measure
the cable fault location. (The selection is under
the menu.)
Depending on your selection, the analyzer is set to one of the following
configurations. (The
and configurations are
discussed in the Option 100 User's Guide Supplement.)
Table 3-1 Measurement Configurations from the BEGIN Key
The following measurement configurations apply to
all
of the measurement
types in the previous table:
Power Level Factory preset power level
1
Measurement Channel 2 Off
Format Log Mag
Number of Points 201
Sweep Time Mode Auto
Sweep Triggering Continuous
Averaging Off
System Bandwidth Medium Wide
1. Factory preset power level is user-defined by using the “Pwr Level at Preset” softkey. The fac-
tory default is 0 dBm.
SRL
SRL
Cable
Fault Location
Fault Location
Cable
SRL Fault Location
Transmission Reflection Power Conversion Loss
Frequency
Range
(HP 8712ET)
0.300 MHz to
1300 MHz 0.300 MHz to
1300 MHz 10 MHz to
1300 MHz 10 MHz to 1300 MHz
Frequency
Range
(HP 8714ET)
0.300 MHz to
3000 MHz 0.300 MHz to
3000 MHz 10 MHz to
3000 MHz 10 MHz to 3000 MHz
Measurement
Channel 1
Transmission Reflection Power Conversion Loss
Detection
Mode Narrowband Narrowband Broadband Internal Broadband Internal
Measurement
Paths
B/R A/R B* B*/R*