Fluke CableAnalyzer DSX-602, Руководство пользователя

Страница: 71 / 110

Chapter 3: Certify Coaxial Cabling
Tests Without a Remote
63
Table 4. Remote Requirements for Coaxial Tests
Test Remote Requirements*
HDTDR
analyzer Optional. Without a remote, the plot shows large
reflections at the end of the cabling.
Resistance A remote or a terminator is required for a loop resistance
measurement.
Length Not required.
Because a coaxial cable terminator eliminates signal
reflections, the tester cannot measure the length of
terminated cabling. The tester shows
End not found in this
case.
Impedance Optional.
Without a remote or terminator, the tester cannot measure
the impedance of cables longer than 984 ft (300 m). The
tester shows
Unknown in this case.
Propagation
delay Not required.
Because a coaxial cable terminator eliminates signal
reflections, the tester cannot measure the propagation
delay of terminated cabling. In this case, the tester shows
End not found .
Insertion Loss Required.
* If a remote is not required for a test, the test runs without activating the toner
when no remote is detected.