Originally Posted by decaffeinated
Tivo Support did requst data from my connection and determined that my SNR is too high and that I need to add some attenuators. I replied, "How many attenuators and where is a URL so that I can look at them and maybe buy them online?" Tivo would not send me an attenuator URL. That's awesome.
Anybody got an attenuator URL? Thanks in advance.
While attenuators (of the sort that are mostly just a resistor inside) are cheap, simple, and sometimes work without issue, there's a better way to attenuate a digital signal: Add splitters (daisy-chain) and/or change the splitter to one with more out ports, and put terminators on any resulting unused ports (the terminators are a must, for unused ports and wall-plates, in the digital age). Also, if the splitter changes are made upstream, the length of the cable downstream adds attenuation, due to resistance.
The simple attenuators are not even allowed in my cable market. The techs are not allowed to install them, and are directed to remove them, when they find them. If I had any in-use, and a tech came out, they'd remove them and use splitters and terminators. If I refused to not-use terminators, they'd blame all the problems on them being there.
I have attenuators of different values, which I use to find the level of attenuation I need, then use that value to choose the splitters instead.
In the real-world, where "SNR" is SNR as defined by a standard, there is no such thing as an excessive SNR level (the higher, the better, period). TiVo uses a bastardized measurement, which results in SNR going higher with a stronger signal. Then, making things hell for customers, they say your SNR is too high, instead of saying the signal is too strong. This leads to you sounding like an idiot when you tell a cable tech/rep that you need a lower SNR, or that your SNR is too high.
Focus on trying to get the signal strength/power to not be pegged at 100 all the time (no matter how overly-strong a signal is, a TiVo just reads 100), and your SNR will drop, since TiVo uses signal strength for part of their improper SNR value.