12/18/2023 0 Comments Moca modem mediacom![]() ![]() Each customer has a dedicated link but the transmitter mast must be in line of sight (most sites are on a hilltop). At each subscriber premises the ordinary cable modem is connected to an antenna box which converts to/from microwave frequencies (usually 10 GHz) and transmits/receives on a microwave frequency (See my other radio posts RF PROPAGATION if you want to find a chart on the microwave frequency bands). DOCSIS 2.0 and 3.0/3.1 can and may also used over microwave frequencies using dedicated wireless links rather than an HFC network. This is a form I am especially fond of as I see it having great potential in rural regions. However, there is a rarer version of this network. POTS is a very poor way to carry signals and thus is no longer common on these networks nor supported. If the HFC is already “two-way” or “interactive”, chances are high that DOCSIS 1.1 or higher can be implemented. Without a return path, the old DOCSIS 1.0 standard still allows use of data over cable system, by implementing the return path over the plain old telephone service (POTS). This does not apply to DOCSIS 1.0 and 1.0 only you see before any cable company can deploy DOCSIS 1.1 or above, it must upgrade its hybrid fiber-coaxial (HFC) network to support a return path for upstream traffic. This is the most common form of the network. Fiber optic lines bring digital signals to nodes in the system where they are converted into RF channels and modem signals on coaxial trunk lines. Cable systems supporting on-demand programming use a hybrid fiber-coaxial system. Try to buy cable modems with BROADCOM chipsets and not Intel Chipsets which are notorious for bad performance (Cite Intel PUMA 6 and 7) Networks where DOCSIS is used:Ī DOCSIS architecture includes two basic components: a cable modem located at the customer end and a cable modem termination system (CMTS) located at the CATV headend (sometimes called a plant). Always keep your wireless network seperate with a seperate router for best practice away from your cable modem. Word to the wise: Always buy your own cable modem. ![]() They will never win so long as we never back down. There are more common folk than evil empire runners. Share this, inform all you friends who have issues. This guide will talk about how you can take part of the diagnosis process in your own hands. Lets try to make this environment healthier. Your frustrated… your grandma is yelling at you because of issues with her TV etc. Your having an issue, perhaps your cable modem is disconnecting a lot or you have intermittent connection issues. So thanking the good ones keeps them working hard and gives them satisfaction. There are a ton of bad techs out there and bad supervisors over them etc. So I want to start with if you have a solid connection and solid techs you really should thank them for doing good work. This also means a cable distribution center (Often called a plant or headend) needs to be routinely monitored and maintained. This means they are prone to ingress noise from households and a lot of other sources. They use a damn piss poor method over copper to do so (which they augmented with Hybrid Fiber Coaxial tech) but they still are an RF transmission. There is no one answer fits all because Cable networks are inherent an RF transmission. You know I often find myself getting asked a lot of questions about this. It may or may not be updated in the future for 3.1 as 3.1 is a totally new standard and may require its own separate post. I can remove the informationĭisclaimer: This post is written for DOCSIS 2.0/3.0 Networks. Let me know if this is at all in violation of anything as you see fit. Credit also goes to him for taking such a great interest in this type of network and I wish him the best of luck continuing to explore and grow his knowledge in this I did post how to run your own drop. See here for a directory of them all here! Great content its time to make public our conversations or at least our knowledge. Part of a series of RF informational posts. ![]()
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