PARTS EXPRESS in-Line Coac Cable TV Signal Attenuator 12 dB

Very helpful tool to help lower cable signals. There are a lot of different DB's ratio for this connector. So far the 12db connector has worked the best on my Tivo's. I have bought other db's in this connector just to have if every needed.

This little adapter reduces the signal power on your cable (coax) line. Why would you want to do that? Usually you worry about having too little signal, not too much. It turns out that modern TiVO devices are allergic to unusually high signal strength, and they pretty much go haywire when they record that - the signal seems to be jumping back and forth as if you'd been playing with the fast-forward/rewind buttons. Very mysterious (and bad design on TiVO's part, I suppose).How do you end up with excessive signal strength? Ask your cable company to sell you (truly) high speed Internet, and they'll put it on the same cable as your TV signal. Then they'll boost the power to 11 to make sure your Internet signal makes it through, and the boost also applies to your TV. Voilà... trouble.An adapter of this kind will solve your specific TiVO-vs-Internet problem just fine - if you get the right amount of attenuation. To little and you'll still have trouble. Too much and you'll start seeing decoder artifacts. Keep in mind that a few dB (decibels) go a long way. In our case, 12dB was too much, and 6dB was just right. Your mileage will vary; just buy a set of varying strengths and try them out until you get the right one. (Yes, you can stack them together.)5 stars for these adapters; a subdued hiss-and-boo to TiVO for making them necessary.Cheers -- perry

My TiVo HD worked perfectly with my Comcast cable (with a CableCard) from 2008 until September 2013. Then suddenly I had frequent audio loss and pixelation issues (at least twice an hour during live or recorded shows). I tried different CableCards and had Comcast techs come out multiple times. They replaced cables and ran tests. They said that the cable was functioning correctly. I was sure my TiVo wasn't failing, since it seemed to work properly in every other respect; so I refused to try Comcast's DVR for some time. After a while I had to try Comcast's DVR in place of my TiVo HD to prove to the Comcast techs that my TiVo HD wasn't the problem. Of course the Comcast DVR worked perfectly! I was at the end of my rope when TiVo tech support (finally, after multiple e-mails!) suggested an attenuator. I looked them up on amazon and saw that these attenuators had solved similar problems for others. I'm so grateful that these others posted this information. This In-Line Coax Cable TV Signal 12 dB Attenuator seems to have solved my problem, no sound loss, no pixelation, for the last few days.

I have cable modem as the only line in my house and it's running hot (+10 on DS and 30dBmV on US). While this did effectively attenuate DS signal it just killed the return, it went from 30 to 54 dBmV. I removed the device and placed a directional coupler for now until I can get my hands on a working in-line attenuator.

Works well if you need to lower your db power in your cable. When running cable modem you will want your db power as close to 0 as possible. Cable company says you're in the "norm" anywhere between -10db to 10db. Problem with having too much db in your line is it will affect your upload speed, and will affect your signal to noise ratio (s.n.r).Think of s.n.r. as you standing in a hallway, and your friend is at the other end, and you try to tell your friend something, but the hallway is just too noisy, and they can't hear. Adding an attenuator to the line quites down that hall so you, and your friend can communicate better.

Did exactly what I needed - cable modem downstream power levels at night hovered between 9 and 14 dBmV, upstream between 26 and 34, rendering my net connection nearly unusable unless I lucked out with the modem going into RCS partial service mode. For reference's sake, downstream's supposed to be as close to 0 as possible (with the max range between -12 and 12), upstream between 40 and 55. After installing the attenuator, downstream's between -4 and 1, upstream at 48, and my internet service is back to being stable.

As I have posted in my other reviews of these attenuators, these little gems will cure many strange problems that plague TiVo owners due to a "hot" signal. My problem was that the TiVo would reboot randomly. Once I installed the attenuators and sufficiently knocked the signal down, the rebooting problems went away. I highly recommend you buy several attenuators at different strengths, as they are stackable and each TiVo owner's situation will be unique. To finally cure my problem I needed this 12 dB along with a 6 dB and 3 dB. Simply screw them into the back of the TiVo, screw the coax cable into the attenuator, and you're done.

This product has not resolved the issue I needed it for in the first place, and I believe that the problem has gotten worse (pixelation on tv through TIVO STB on Fios service). To be fair, I cannot say that it is for lack of the product working, because I cannot tell since I cannot find a higher dB to replace it with for comparison. But I can say that the issue has gotten worse since I have connected the attenuator. I haven't taken the time to remove it yet, but will get around to it when I can find a replacement of the same dB or another seller's higher dB to see if the product itself is the problem.