Triplett CableRater- PN: 3279 - Manual (Page 18)

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To test a splitter with the CableRater, first calibrate the Transmitter as described
in 9.4, and then connect the Transmitter and Receiver to the splitter as shown in
Figure 8. To get the most accurate results, a 75 Ohm termination should be
placed on any unused outputs... but even without the termination, the Loss should
be similar to the Loss shown in Figure 7. Note: The CableRater displays Loss as
a negative or ‘minus’ value in dB. So a 2 way splitter would read about ‘-3.5dB’
on the CableRater display. Notice that the smallest splitter, a 2 way, has more
loss than 100 ft of cable (at 60MHz).
UNLOCK
Figure 8
2 Way Splitter (with a termination on the unused output) being tested
Note:
Some splitters have different losses on their outputs. This is most commonly
seen on 3 way splitters. These splitters are usually marked with the expected
loss for each output.
9.7 Testing Amplifier Gain
There are many types of amplifiers. Only amplifiers intended for use on a Cable
TV system should be tested. The CableRater will not damage other types of am-
plifiers, but it may not test them correctly either. For example, ‘antenna’ amplifi-
ers or ‘satellite dish’ amplifiers, which can both have F connectors on them,
cannot be properly tested.