5
When making adjustments always apply the following principles:
Input signal levels should ALWAYS exceed the noise figure of the amplifier by 3 to 6
dB.
The primary purpose of tilt (equalization) in a cable TV plant is to compensate for the
slope generated in coaxial cable between the high and low TV frequencies. When
various TV channels, with respect to frequency, are transmitted through coaxial cable
they are subjected to increasing attenuation (loss). Simply put, as the frequencies of
the TV carriers are increased, attenuation loss (dB) increases. A variable tilt control is
installed in this amplifier to compensate for this slope in cable resulting in a flat
frequency response at the output
6
. TROUBLESHOOTING
a. Ensure you are using quality multiple shielded cables with quality radial or
compression F-connectors.
b. Ensure the F-connector’s center conductor is making solid contact with the
CTA-30-870AR’s Input and Output ports, and the appropriate RF source and RF
distribution network connectors.
c. When taking measurements it is always best to use an RF spectrum analyzer or
quality signal level meter. Initially, level measurements should be taken from the
CTA-30-870AR’s Output port.
This is a notice to inform you that content passing thru this device may contain strong
language or depictions of violence, sex or substance abuse. This unit contains no
parental control features. Parental discretion is advised.
