The cost of cable tv
16 years ago
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cable tv interference
Comments (0)a few months back i wired our upstairs bedroom for cable tv and installed and had the cable company inspect it and had them install an amplifier. the amplifier is plugged in the nursery circut, which doesnt have anything plugged in that room except a light. about every hour or so our cable (upstairs only) goes completly fuzzy for 3-4 minutes then back to normal. after checking in the basement, there are a few spots where there are electrical lines that come within an inch or so from the cable line. i am not sure what is on those circuts, but is it possible that something that is not on all the time but only periodicly could cause some type of interferince? the appliances i was thinking about are the fridge, chest freezer, furnace or sump pump. is it possible one of these are causing interferience? at this point i dont think i would be able to relocate either the electrical or the cable. would there be any other solution to this? i have called the cable company and they say we would have to pay for them to come and try to fix it because they did not install it and that costs money we dont have! any help would be appriciated....See MoreTV above fireplace--how do you run cables for cable box/DVD
Comments (5)Well, you point the remote at the device you wish to control, however, human nature always makes you want to point it at the television. If the cable box and television are roughly in the same area, the cable box will hopefully "see" the remote control's IR (infrared) signal. If they are too far away, or if the A/V components are in a cabinet, you can purchase an "IR repeater". The repeater consists of a IR receiver which you discreetly place near the television. It then sends the IR signal to small IR emitters that you place near your A/V components. They come in both wired and wireless versions between the receiver and emitters. You may need some help from somebody that can look at the outputs available on your A/V components: Cable Box, DVD player, etc, and the input options of the television to determine what types of connection/cables you will need between the two. You may also want to add some additional cables for "future components." Additionally, Ethernet wiring (for an internet connection) should be run to the television and also another to where your A/V components are located. If you're installing a home theater sound system, the wiring for that needs to be figured out as well. The single HDMI cable reference I made earlier refers to connecting all you A/V components to the receiver for the sound system, and using it to control which source is displayed on the television. Many people end up preferring to send the signals to both the receiver and the television. That way, if you are "just watching TV" you can use just the TV. If you are watching a movie on DVD and want the full surround sound, then you turn on the receiver as well. By the way, the cables/wiring used in-wall to the television (and speakers wiring if done in-wall) need to be in-wall rated. That refers to the type of insulation used in the cable for safety purposes....See Morecable TV grounding disagreement
Comments (23)"The whole point of a grounding system is to provide a LOW-RESISTANCE path to ground. Do you honestly think all that extra wire isn't going to add significant resistance? Actually, I'll bet the ground resistance through all of your equipment will be lower than that through your new ground wire, meaning any current that would normally use the grounding system will fry your electronics instead." Not just a low resistance path, but a low impedance path. Lightning (especially) seeks the lowest impedance path to earth, and has a very fast rise time waveform. Even bends in the ground line can present a significant impedance, causing the strike to leave the wire. Turns cause crowding of the magnetic field created by the current on the wire, and thus represent an increase in the impedance. Running a grounding wire across an attic is foolish. Do not invite lightning into a building. The old lightening blocks for TV antennas actually did a pretty good job if the ground wire continued straight down to earth while the feed into the house made a 90 degree turn through the wall. That said, the small gauge wire served more to guide the strike and was vaporized by a direct hit. It left a nice burn mark down the side of the building....See MoreHave you connected your TV to a cable TV operator?
Comments (3)Connecting a TV to a cable operator isn’t too hard. Usually, you just need to plug the cable box into your TV using an HDMI cable and follow the on-screen setup instructions....See More- 16 years ago
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