What are the output levels of a 4-way splitter?

The output levels of a 4-way splitter in a coaxial cable system are typically expressed in decibels, which quantify the loss of signal strength. When a signal is split into four outputs, it doesn't divide evenly due to signal loss inherent in the splitting process. A standard 4-way splitter typically adds an attenuation of about 7 dB to each output. This means that each of the four outputs will theoretically experience a signal level that is approximately 7 dB lower than the input level, assuming perfect equipment and installation.

While common misconceptions might lead someone to think the outputs could be equal to the input level (or other values like 3 dB or 5 dB, which would imply less loss than expected), the standard loss associated with a 4-way splitter is closer to 7 dB. In practical terms, this means that regardless of the input level, each of the outputs will produce an output level of approximately -7 dB compared to the input. The value of -3.5 dB presented in another option, while intuitively plausible, is not typical for a 4-way splitter configuration.

Thus, recognizing that the standard output levels due to the splitting process result in a consistent output level of -