Originally Posted by Don F.
Impulse noise??? I've looked at several sites to explain "impulse noise" as I seek a solution to my problems with 13.1. My signal is fairly good, around 75, but constant glitches both video and audio, both seem electrical , no pixel drop out, just a small tear in a portion of the picture, audio has a pop .....but I'm no engineer. I looking at the Monster htfs 500 to correct. Anyone else using a power conditioner???? Any suggestions?
Don, Impulse Noise may reach your system either by way of the power line, or directly from the antenna. The most common source is a cracked or broken insulator on a power line. If you tune to an analog channel, you should see it in the picture. If it shows up as a line across the screen, crawling slowly upward, then it is power-line related. If it is random, it most likely comes from a brush-type motor somewhere in your area.
Normally, impulse noise is worst on the low VHF channels (2-6) which is why most stations do not want to use those channels for DTV. Seeing it on UHF is very rare.
As far as power conditioning is concerned, there are some good units out there, but I would recommend something different....
Be on the lookout for a Liebert Uninterruptible Power Supply in the GXT series. I have a 2 KW one, which powers three HD-TiVos, a 61" RP HDTV, all the audio components, and two computers. The beauty of these is that the output is always coming from the UPS, and never from the power line. The line only provides DC to keep the batteries charged, so there is complete isolation from any line problems.
In over a year, I have never had a TiVo lockup, reboot, or any other problems, which is in stark contrast to most other TiVo users. If the power goes off, I just shut off the TV and audio, and let the TiVos run. Usually the power is back quickly, and I don't even lose the recordings.
I got mine on eBay for about $60 plus shipping (another $50 - these are heavy) and bought new batteries for it, about another $60, but it has been a great investment!!
If you look on eBay for item 9729660116 you will see a similar unit for sale now. It is a 1 KW.