Triplett CableRater- PN: 3279 User Manual
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9.2.4.2 Gain or Loss Indication
When a test signal is measured, after having properly calibrated the Transmitter,
the Gain or Loss of the cable, device, or distribution system between the Trans-
mitter and the Receiver, is displayed in dB.
Numbers preceded by a minus (-) symbol indicate that the displayed value is a
‘Loss’... which means the level of the test signal is lower than it is at the Trans-
mitter. It is expected that Splitters and the cable itself will cause Loss between
the Transmitter and Receiver.
Numbers without a minus (-) symbol indicate that the displayed value is a ‘Gain’
which means the level of the test signal is higher than it is at the Transmitter.
This usually happens only when an Amplifier has been used to increase the sig-
nal level.
An indication of 00.0 means the signal level is the same as it is at the Transmit-
ter... that is there is no Loss and there is no Gain.
9.2.4.3 Auto Power Off Indication
If the Auto Power Off (APO) feature is activated (see 8.2), APO will appear in the
display. The APO feature allows the product to remain on as long as a signal is
being measured. If a signal is not being measured, the product will turn itself off
after the preset timeout duration (see 8.2.3). The timeout duration is reset to its
full interval whenever a signal is measured.
9.2.4.4 Low Battery Indication
If
appears in the display, the battery is low and should be replaced.
9.3 Ingress
9.3.1 Testing for Ingress
Ingress, and problems associated with it, are described in section 5.3.2. Before
performing any Loss or Gain tests with the CableRater, it is a good idea to test
for ingress.
An ingress test is performed without cable TV service connected to the cable TV
distribution system. If service is already connected, disconnect it temporarily to
perform the test. Do not connect the CableRater Transmitter to the cable distri-
bution system.
To test for ingress, connect the CableRater Receiver to each cable TV outlet.
Turn On the Receiver by pressing and releasing the Meter Push On/Off button. If
desired, turn On the Backlight by pressing and releasing the Backlight Push On/
Off button.