Expert: Brad King Date: 10/22/2007 Subject: computer modem connection
Question I have Comcast cable TV and Internet and am experiencing an electrical feed back from either a TV or VCR recorder that gives me a high signal to my module that will not allow a connection to the Internet. Some times the system works for months without a problem and then it might happen several times a day.
My cable comes into the house and goes to a splitter, from the splitter it goes to my computer modem and to 4 different TVs with VCR’s. With the TV antennas disconnected, the system works fine. When I connect the TVs the modem will not always connect to the Internet. While connecting and disconnecting the antenna leads to the spiller I sometime feel a small tickle of electrical current, which makes me believe there is a electrical feed back that cause the high signal to my modem.
Do you know of any kind of filter that would eliminate this feed back?
Thank you,
Don Suszko
Answer Don,
They do make a voltage block inline filter that will suppress dc and ac voltage. The part is called a "VBC". This part may not be easy to find. Try with a cable TV supply company that sells parts on Internet. If you are able to obtain the part, connect it to splitter side that feeds cable modem. This may not work, but is worth a try. I would also ask cable company to investigate there outside line coming into your home to check for voltage. Another possibility is "stray" voltage coming back out of TV tuner, which I have seen in past. I hope this helped, and good luck.
