Understanding MoCA and Its Compatibility with Cable Internet

Introduction to MoCA and Cable Internet

If you have a coax service provider, the coax separates TV and internet by using different frequencies. This concept is the same as separating TV channels — each channel is on a different frequency. Frequencies below 1 GHz are generally used for TV, while internet typically uses 1 to 2 GHz. Within this range, there are further subdivisions. Some frequencies are reserved for MoCA (Multi-Host Communication Architecture).

Understanding MoCA's Limitations and Requirements

The main limitation of MoCA is similar to that of a cable modem, requiring a stronger signal compared to TV. As long as there are not too many coax splitters, MoCA should work fine. However, the strength and interference can still be influenced by the number and placement of splitters. It's important to manage the number and placement of these splitters to ensure a smooth connection.

Real-World Applications of MoCA

MoCA has proven to be an effective solution for connecting various devices to cable internet. I have been using it with my Spectrum cable internet in Bradenton, Florida, for the past 3.5 years. I use it to connect my TiVo to my network and for some wired devices on my AV rack. I have a MoCA adapter next to my cable modem that connects to my Netgear router via Ethernet. Also, at the master bedroom, I have a MoCA filer connected to the incoming cable line. This filer goes to a MoCA compliant splitter, which are key to ensuring that the MoCA network functions correctly.
Using MoCA has provided me with a stable and reliable network. I have also used it with Verizon FIOS fiber in Boston. In these setups, the MoCA filter might be needed to prevent overheating from the fiber ONT, which can slightly reduce the MoCA signal. However, the overall performance remains unaffected.

Choosing the Right Version of MoCA

Not all MoCA versions are the same. You'll need to use MoCA 2.0 with DOCSIS 3.1 to ensure interoperability. This combination provides a more stable and faster network, making it a preferred choice for modern cable internet setups. Make sure to check the version of MoCA you have and if it's compatible with your cable internet provider's technology.