Fluke DTX-1800, Technical Reference Handbook

Page: 133 / 398

5-1
Chapter 5: Certifying Coaxial Cabling
Certifying coaxial cabling requires the optional DTX-COAX
coaxial adapters.
Note
The DTX-COAX adapters are not compatible with the
DTX-CLT.
Setting the Reference
The reference procedure sets a baseline for insertion loss
and resistance measurements.
Run the tester’s reference procedure at the following times:
When you want to use the tester with a different smart
remote. You can reference the tester to two different smart
remotes.
Every 30 days. Doing so ensures maximum accuracy of test
results.
You do not need to set the reference after changing link
interface adapters.
To set the reference, do the following:
Note
Turn on the tester and let it sit for 1 minute before
setting the reference. Set the reference only after
the testers have reached an ambient temperature
between 10
°
C and 40
°
C (50
°
F and 104
°
F).
1 Attach coaxial adapters to the main and remote
testers, screw in the F-connector to BNC adapters; then
make the connections shown in Figure 5-1.
2 Turn the rotary switch to SPECIAL FUNCTIONS and turn
on the smart remote.
3 Highlight Set Reference; then press
H
. If both a
fiber module and copper adapter are attached, select
Link Interface Adapter.
4 Press
P
.