Kramer Electronics VM-1042 User Manual
Page 4
KRAMER ELECTRONICS LTD.
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Factors Affecting Quality of Results
There are many factors affecting the quality of results when signals are transmitted from a
source to an acceptor:
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 " connection resistance is the target. Sockets and connectors
also must match the required impedance (75 in video). Cheap, low quality connectors
tend to rust, thus causing flaws 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 (over 15 meters) 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.