Each splitter is different, but here is what most of them mean:

The numbers on each OUT leg of the splitter show how much signal is lost after passing through that leg.

For example, a 2 way splitter has 3.5 on each leg. That means that 3.5db was lost as the signal passed through that leg.

Note: The signal loss written on splitters is how much is lost at around 50 to 100Mhz. The higher a frequency is, the more is lost over distance. This applies to splitters too. In reality, a cable modem is probably losing more like 4 to 5db when passing through this same splitter.

The following info provided by RadioDoc:
On the back of a splitter, you may see a number like 130db EMI etched into it. That's the ingress/egress suppression (shielding) spec for the splitter, e.g. if a +10 dBmv signal is present inside at the input, the maximum leakage from the splitter itself would be 10-130=-120 dBmv, which is very low. Same the other way...

got feedback? got feedback?

Any feedback you provide is sent to the owner of this FAQ for possible incorporation and shown publically as well.

by Raydr
last modified: 2002-03-08 20:59:40