1. The length of the length cable is generally specified in feet or meters. The attenuation of the cable signal is proportional to the length of the cable. The longer the cable is, the greater the attenuation is. This is due to the physical laws of the cable.
2. The frequency resistance and the wire material of the frequency cable determine the range of the transmission signal frequency. Generally, within the proper transmission distance, if the phenomenon of image blur occurs, most of the cables do not meet the requirements of high frequency transmission, resulting in a high frequency band of the signal. loss.
3. The interference cable itself is a huge antenna that can absorb the electromagnetic waves that exist in the space. If the cable is not shielded or the shielding effect is poor, any type of electromagnetic interference will directly affect the useful signal and reduce the signal to noise ratio of the signal.
4. Temperature As with all electronic circuits, the physical characteristics of the cable are also affected by temperature, and the physical parameters of the cable perform differently in different temperature ranges. In engineering applications, cables can be laid on walls, ceilings, and instrument racks because the ventilation conditions in these places are not ideal and high temperatures are easily generated. Therefore, the allowable operating temperature range for the selected cable should apply to these environments.
5. The slope of the slope is the time difference between the different lengths of the twisted pair to signal transmission. It depends on the integrated technology and type of the twisted pair. When a large delay error occurs, the slope of the cable needs to be compensated.
6. Impedance impedance is one of the most important parameters for describing the technical specifications of a cable. It establishes a baseline for the correct flow of signals.
7. Attenuation of a signal by an attenuation cable is also called insertion loss in decibels. A normal cable provides a loss table describing the attenuation value of the cable at different frequencies per unit length. The cable loss is cumulative, and the attenuation value of the signal for different frequencies is also different. The signal of the same bandwidth, the cable length is doubled, and the loss is also doubled. For example, the cable above transmits a 100-Hz bandwidth signal at a length of 60 meters. Generate -4.4dB loss.
2. The frequency resistance and the wire material of the frequency cable determine the range of the transmission signal frequency. Generally, within the proper transmission distance, if the phenomenon of image blur occurs, most of the cables do not meet the requirements of high frequency transmission, resulting in a high frequency band of the signal. loss.
3. The interference cable itself is a huge antenna that can absorb the electromagnetic waves that exist in the space. If the cable is not shielded or the shielding effect is poor, any type of electromagnetic interference will directly affect the useful signal and reduce the signal to noise ratio of the signal.
4. Temperature As with all electronic circuits, the physical characteristics of the cable are also affected by temperature, and the physical parameters of the cable perform differently in different temperature ranges. In engineering applications, cables can be laid on walls, ceilings, and instrument racks because the ventilation conditions in these places are not ideal and high temperatures are easily generated. Therefore, the allowable operating temperature range for the selected cable should apply to these environments.
5. The slope of the slope is the time difference between the different lengths of the twisted pair to signal transmission. It depends on the integrated technology and type of the twisted pair. When a large delay error occurs, the slope of the cable needs to be compensated.
6. Impedance impedance is one of the most important parameters for describing the technical specifications of a cable. It establishes a baseline for the correct flow of signals.
7. Attenuation of a signal by an attenuation cable is also called insertion loss in decibels. A normal cable provides a loss table describing the attenuation value of the cable at different frequencies per unit length. The cable loss is cumulative, and the attenuation value of the signal for different frequencies is also different. The signal of the same bandwidth, the cable length is doubled, and the loss is also doubled. For example, the cable above transmits a 100-Hz bandwidth signal at a length of 60 meters. Generate -4.4dB loss.
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