 | Splitters |
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Types of Splitters.
NOTE* Splitters are NOT weather proof so they should remain indoors. *Noise will enter any open connection that is not covered. Using the right recommended splitter for your internet/cable can bring good results providing your lines are good your internet can be stable and smooth. That's why its important not to use a cheap splitter from your local store.
The proper splitter helps the Frequency flow smoothly. Think about like your Cable system like a radio dial, you turn the knob until the signal comes in clear.
Why its important all tuning and all your equipment should be in Good shape
When You install a drop line from the pole make sure you meet it at the house with a splitter. Not a cheap splitter. Splitter like this .
Electromagnetic interference (or EMI, also called radio frequency interference or RFI) is disturbance that affects an electrical circuit due to either electromagnetic induction or electromagnetic radiation emitted from an external source. The disturbance may interrupt, obstruct, or otherwise degrade or limit the effective performance of the circuit. These effects can range from a simple degradation of data to a total loss of data. The source may be any object, artificial or natural, that carries rapidly changing electrical currents, such as an electrical circuit, the Sun or the Northern Lights.
EMI isolation, is the amount of noise protection the shield offers Cable TV/broadband internet uses a coax network. The signal rides on the inner conductor completely surrounded by the shield. If a perfect world the shield would perfectly isolate the inner conductor from effects on the shield. The splitter and the cable line shield signal and isolation.
Ingress
Ingress is basically the leaking IN of a signal. Ingress is bad, because it can totally trash a signal. If there are any cuts, strips, bad crimps, or bad shielding on the line completely distorts the picture and the sound is usually messed up too. If you are experiencing ingress on your line, the FIRST thing to check are your connections. Make sure that all of your lines, from the wallplate to your equipment are ALL tight and secure. Push on connectors are NOT your friend and are a very common cause of ingress. Screw on ones are very annoying, but they are much more secure. If there are 10 bad drops the return path will fire back to the UBR server and will not be able to read the modems and will shut down the internet.
It always starts at the houses as lines are send and return.
NOTICE: Every piece and device has a role to play before its get to the customer and each has to be in good shape ready to face the elements
Some possible bad elements can be a bad exposed ingress line firing back a noisy return an old TV
Understanding line preparation and how they work is a first. Then learn the concepts in how delivery works is next. Remove splitters if at all possible and add a F81 or joiner
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| Re: Splitters |
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Basically, the isolation is between the two ports on the splitter. The higher the number the better. It's saying that it would take 140db of some type of signal (off-air, ham radio, etc) before the signal would bleed onto the other port of the splitter. If there is some type of interference on one leg of the splitter it should not bleed over onto the other leg, unless that signal level reaches 140db. Cable TV uses a coax network. The signal rides on the inner conductor completely surrounded by the shield. If a perfect world the shield would perfectly isolate the inner conductor from effects on the shield. EMI isolation, is the amount of noise protection the shield offers. Better shields offer better noise immunity (like a quad-shield RG-6 vs. an RG-59). |