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Q: What does rf signal mean in a cable system?
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What do you mean rf cable?

RF = Radio Frequency


What are strengths of coax cable?

Coaxial cable is the best/lowest cost way to move a RF signal from point A to point B.


What type of cable is used with RJ-58?

The question is confusing: RJ58 is a cable. It is typically used in low-power signal and RF connection applications.


What is a RF cable?

In general, RF (for radio frequency) cable is used for the transmission or "linking" (coupling) of equipments, components, stages within components or anything like that where a high frequency signal (an RF signal) needs to be "routed" from one "thing" to another. Your TV cable is just one of the many, many applications of RF cable. Another might be connecting an RF transmitter to an antenna, or an antenna to an RF receiver. The term "RF cable" is a very general one, and there are lots and lots of different types of RF cable. The cable may be the coaxial type (coax), which is most common, and that's like the little cable you screw on the back of your TV to connect it to a cable service or maybe it's the cable connected to the cable box itself to bring the signal from the cable company aboard. There are other types of RF cable, too. Twinaxial (twinax) has a pair of "center" conductors and it might be used to connect data hubs. Heliaxial (heliax) might be used between a radio transmitter and an antenna. There are more, and lots of different "flavors" or characteric impedances, of them. Loss in cables is high, even for "good quality" cable, and thought must be given to cable application and to making up the cables. Long runs of cable are not good news for designers. The distributed R, L and C, and particularly the C (capacitance) will "suck the signal" out of the line. The capacitance actually acts to couple the signal to the shield or "ground" in coax cable. It acts like a small, distributed "short circuit" for a bit of the signal through each foot of cable. And the longer the run and the higher the frequency (because capacitors "couple" higher frequencies better - the XC goes down as frequency goes up), the more signal is lost. Impedance matching is critical (as is using cable with the correct impedance!). Every single connection creates loss, and sometimes great loss. There is no way to avoid it, only steps you can take to minimize it.


Do you need to connect the RF out cable to anything for tv to work?

No - the RF Out socket just relays the signal from the antenna (aerial) that is being shown on the TV to another device, such as a video recorder (VCR) or another TV set.


Can you hook up a DVD player to a TV that has only a cable input?

You have to buy a box that converts the signal from the DVD player into an RF signal. These can be found in the electronics department of most stores, or at Radio Shack.


What is the maximum length for BNC cable?

The BNC (Bayonet Neill Concelman) connectoris a very common type of RF connector used for terminating coaxial cable.There is no predetemined maximum length for the coax cable. The maximum length of cable is going to be governed by determining the input signal level, the minimum output signal level, and the signal loss based on the length of the cable between the input and minimum output.


The of an antenna depends upon the frequency of the RF signal and the gain?

The size of an antenna depends upon the frequecny of the RF signal and the gain.


What's the best way to hook up a hdtv to a cable box?

A Cable box and TV are connected together through a RF cable.


Is rf signal much more important for capturing or not?

rf is must for modulation and demodulation.


RF Cable Assembly?

form_title= RF Cable Assembly form_header= Buy the right cables for all of your needs. What length of cable do you need?*= _ [50] Do you want the cable delivered?*= () Yes () No Will you assemble the cable yourself?*= () Yes () No


Your tv and your sisters tv are both on the same areal and its digital but when she turns hers on mine looses signal and gets bad signal how do you fix this?

The system should have a coax cable running from the antenna to a two way RF Splitter with one input and two outputs. One output needs a coax cable run to one TV and another coax cable connected to the second output and run to the second TV set. If the signal is not strong enough, use a powered splitter instead of a passive one.