0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What in the cable limits signal degradation?
A: As cable lenght increases the impedance changes with frequency especially at half wave lenght where at some frequency the impedance can be zero. The impedance is a function of capacitance inductance and resistance in the cable
Is the telltale factor for ascertaining where faults in a cable lie?
Impedance.
What is voltage drop when utilized with cable runs?
A: ANY CABLE will have a definite impedance and if current flow there is going to be a definite voltage drop because of it
What is the purpose of 50 ohms antenna?
A; it is to match the cable line impedance to the receiver for maximum transfer of energy
What is 75 ohm?
Ohms are a measure of resistance to electric current.You're probably talking about a 75 ohm coaxial cable. In this case, 75 ohms is the characteristic impedance of the cable.
What in the cable limits signal degradation?
A: As cable lenght increases the impedance changes with frequency especially at half wave lenght where at some frequency the impedance can be zero. The impedance is a function of capacitance inductance and resistance in the cable
What is the typical impedance of a shielded twisted pair cable?
STP has an impedance of 150 Ohms.
What is different between XLR cable and Line jet cable?
Connector and impedance
What is coaxial cable impedance?
Cable impedance is one of the characteristics that define how the cable will transmit signals. There are some simple and some far more complex descriptions of transmission lines on the Internet that describe the feature in more detail. For the normal user, it is sufficient to know that video signals over co-ax cable will use 75 ohm cable. Most data signals that use co-ax cable will use 50 ohm cable. Generally, the source of the signal will have an impedance equivalent to the characteristic impedance of the cable. Similarly, at the end of the cable, the same value of impedance is needed. When the cable is terminated properly, the signal will be transferred to the end of the cable without it reflecting back down the cable. It is the reflections that cause ghost images or smearing on a television image. As the length of cable increases, it becomes more important to make sure the correct impedance of cable is used with the correct termination.
Is the telltale factor for ascertaining where faults in a cable lie?
Impedance.
What is Transfer-impedance?
transfer impedance is impedance we encounter when an electrical current passing through one element of the system makes a voltage difference in other element of same system. eg:shield in a coaxial cable
What is the impedance of a RG-59 video cable?
RG-59 is RF cable, it is 75 ohms and it will carry video too.
What is voltage drop when utilized with cable runs?
A: ANY CABLE will have a definite impedance and if current flow there is going to be a definite voltage drop because of it
What is the difference between characteristic impedance and intrinsic impedance?
I believe intrinsic impedance is more tied to the medium, thus is defined in terms of magnetic and electric permeability and electrical conductivity, while characteristic impedance is a "wider" look at the impedance. For example, you can calculate the intrinsic impedance of a 18 awg copper wire, or air, or a vacuum. If you wanted to use coax cable with an 18 awg core, you would be looking at the characteristic impedance, not the intrinsic impedance of the copper that will be carrying the waveform.
What is the purpose of 50 ohms antenna?
A; it is to match the cable line impedance to the receiver for maximum transfer of energy
What is 75 ohm?
Ohms are a measure of resistance to electric current.You're probably talking about a 75 ohm coaxial cable. In this case, 75 ohms is the characteristic impedance of the cable.
What is transfer impedence?
transfer impedance is impedance we encounter when an electrical current passing through one element of the system makes a voltage difference in other element of same system. eg:shield in a coaxial cable
