Kramer Electronics FC-10 - Manual (Page 5)

Kramer Electronics Ltd.
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1.2 Factors Affecting Quality of Results
There are many factors affecting the quality of results when signals are transmitted from a source
to an acceptor as described in Table 1:
Table 1: Factors Affecting Quality of Results
FACTOR EFFECT
Connection cables Low quality cables are susceptible to interference; they degrade signal
quality due to poor matching and cause elevated noise levels. They should
therefore be of the best quality.
Sockets and connectors of
the sources and acceptors So often ignored, they should be of highest quality, since "Zero Ohm"
connection resistance is the objective. Sockets and connectors also must
match the required impedance (75
Ω in video). Cheap, low quality
connectors tend to rust, thus causing breaks in the signal path
Amplifying circuitry Must have quality performance when the desired end result is high
linearity, low distortion and low noise operation
Distance between sources
and acceptors Plays a major role in the final result. For long distances between sources
and acceptors, special measures should be taken in order to avoid cable
losses. These include using higher quality cables or adding line amplifiers.
Interference from
neighboring electrical
appliances These can have an adverse effect on signal quality. Balanced audio lines
are less prone to interference, but unbalanced audio should be installed far
from any mains power cables, electric motors, transmitters, etc. even when
the cables are shielded