Bandwidth: It is the amount of digital data that a cable can carry. Each type of cable can only carry a certain amount of information or data during a given period of time. This capacity is known as bandwidth. It is measured in terms of bits or bytes that the cable can carry at a given time. This is an important factor when selecting a network cable.
Attenuation: As signals travel through cables, they lose their strength. This loss of signal strength in the cable is called signal attenuation or attenuation. With greater attenuation, the signal strength decreases. Attenuation also increases with increasing operating frequency and cable length. Attenuation is measured in dB (Decibels) and is expressed as a negative value as it represents a signal loss, for example – 12 dB.
Noise Absorption: Each type of cable is susceptible to some interference, such as internal or external noise. It depends on the environment where the cable is laid. External noise can include electromagnetic interference (EMI) or radio frequency interference (RFI). EMI is related to unwanted radiation or noise from external devices such as electric motors and relays. RFI refers to radiation in the radio frequency range that interferes with transmission over copper cables. In the case of shielded cable, if the insulation shielding is not properly in place, it acts as an antenna and such interference can catch unnecessary signals. Coaxial Cable and Shielded Twisted Pair Cable are less susceptible to interference. Fiber optic cables are least susceptible to interference.
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Attenuation: As signals travel through cables, they lose their strength. This loss of signal strength in the cable is called signal attenuation or attenuation. With greater attenuation, the signal strength decreases. Attenuation also increases with increasing operating frequency and cable length. Attenuation is measured in dB (Decibels) and is expressed as a negative value as it represents a signal loss, for example – 12 dB.
Noise Absorption: Each type of cable is susceptible to some interference, such as internal or external noise. It depends on the environment where the cable is laid. External noise can include electromagnetic interference (EMI) or radio frequency interference (RFI). EMI is related to unwanted radiation or noise from external devices such as electric motors and relays. RFI refers to radiation in the radio frequency range that interferes with transmission over copper cables. In the case of shielded cable, if the insulation shielding is not properly in place, it acts as an antenna and such interference can catch unnecessary signals. Coaxial Cable and Shielded Twisted Pair Cable are less susceptible to interference. Fiber optic cables are least susceptible to interference.