Antenna Outside Tv

I'm not sure what it's called, but for those of you who own a house with the TV antenna/satellite dish on the rooftop (for normal broadcast TV, not cable), there's a wire that comes up from the floor at various places inside the house. You hook that up behind your TV to get reception. Does that wire carry electricity or some electromagnetic wave? If the metal inside that wire is exposed, can it injure someone?

Forget all the flannel and lengthy explanations , if there is any volts on the antenna wire it would only be low like 12 volts so quit worrying !!
Cheers Pete

2007-06-30 15:49:58 by risingnova3

www.espymall.com HDTV Outdoor Antennas HD2605, HD2805 are long range, Amplifier built-in digital TV antennas, Perfect for outdoor use. Can be ...

Could you get more range from it if it is possible. If it is possible, could you tell me how.

Do you mean "Can you turn an outside TV antenna into an outside wifi antenna?"

No. The frequencies that TV uses are far below wifi's. However, you could certainly use whatever tower the TV antenna is on to support a wifi antenna, too. Here's a link to the Seattle Wireless folks on wifi antennas. I'm real sure there's some info in there you can use.

http://www.seattlewireless.net/AntennaHo wTo

Save some money for the cable from the antenna to your wifi modem. At these frequences, you will get huge losses over even short cable runs. You'll be spending far more for the cable than for the antenna. (Just so you know.)

Yes, you get far more range. The higher the gain antenna, and the taller the tower, the better.

2008-04-16 15:29:24 by Keego

Price: $42.99 $42.99

Easy installation - Unfold, mount, and connect
Reception Range: Channels 7 thru 13 up to 60 miles, Channels 14 thru 69 up to 45 miles
Compact size: 1.28 Sq. Ft
Turning Radius: 57.5 in
Receives digital/HDTV analog UHF/HIGH VHF TV signals

tried changing transformer didn't help so put old one back on and now antenna tingles you like a small shocking sensations.

The outside antenna is 300Ohm (2 wires) and RG-59 or RG-6 is 75Ohm Coax. The matching transformer coverts from 300Ohm to 75Ohm. I know of no matching transformers that can handle power. They may need to be replaced, once the problem is solved.

I don't know if you have Sat service, but this problem can arise when Sat and Ant share the same line. The Sat LNB must have power to work. Generally a small "DC-Block" adapter is put on the Coax to the Antenna matching transformer.

This may also happen when the outdoor Antenna is not properly grounded. Check the ground wire to the Antenna. If it is not grounded, either a proper ground or get professional help.

The Antenna MUST be properly grounded for safety.

2008-10-25 16:03:56 by charliec661

Price: $119.00

Rotating Speed: 4-6 rounds/min Power: 3W Working Voltage: AC 110V /60HZ
VHF Gain: 25±3dB UHF Gain: 30±3dB
Impedance: 75 ohm Max.Rotation: 360 Degree
Reception Range: 125 miles
Frequency: (VHF)40-260MHz Frequency: (UHF)470-860MHz

I have a DVB-T receiver on my laptop and a portable antenna that attaches to the DVB-T reveiver (which plugs into a USB drive on the laptop). The portable antenna gives bad reception. How do I receive TV using my roof antenna?

Thank you!

Just plug in the aerial into the DVB-T

I'm not sure what colour yours will be, but my aerial cable is white and circular, and is found at the back of my tv. I'm sure yours will be found at the back of your tv too.

I have one of these and I must agree, the aerial that came with it was appalling! It couldn't pick up one channel, yet as soon as I plugged in the aerial connecting to the roof antenna, BAM all freeview channels were received.

2009-08-12 16:44:17 by atozinco

I'm installing an outdoor tv antenna, the directions say run a ground wire from the base of the mast of the antenna to a grounding source. I will be using a Grounding Rod. What I need to know is this, I'm using Screw Standoffs to keep the cable wire from touching or resting on the roof, can I also run the (insulated) Grounding Wire thru the same Screw Standoffs, side by side? I want to run both of these to the Grounding Block, and then run the Grounding Wire thru the Grounding Block down to the Grounding Rod in the ground. I think I've read somewhere that the Grounding Wire and the Coax Cable must be at least 2 feet apart, is this true?
Thanks for answer, I appreciate it, One more question though, Can I run the two wires 2 feet apart but then only let them meet up at the Grounding Block. I'm a little confused, doesn't the Grounding Wire have to go thru the Grounding Block, or can I just run it to the Grounding Source?

Yes, what you read is true. The reason for it is if lightning hits the antenna it SHOULD go through the grounding block, down the ground wire, and into your grounding rod. If the coax is too close the voltage may arc back to the coax and you would know what your TV set looks like when overcharged.

Side note: Grounding to your main electrical box is better than a 6 foot grounding rod. The infrastructure that you would ground to on the electrical grid can handle alot of power and is designed for this. Thats what your cable guys ground too.

Ok so you have an antenna up in the air on a pole. You need to run a coax (or twin lead wire) from the antenna to your grounding block http://www.radioshack.com/product/index. jsp?productId=2150597&cp=&sr=1&a mp;origkw=grounding+block&kw=groundi ng+block&parentPage=search which is attatched to the pole, grounding the pole through contact from the base of the grounding block. Off the other end of the grounding block you then run the other Coax to your tv's... Now you need to run a ground wire from the ground block (the right side of the picture, unscrew the screw slide in wire tighten screw) to your ground point. This doesnt even need to be close to your coax at all and can go in a completely different direction.

This gives a better ground to your pole http://www.radioshack.com/product/index. jsp?productId=2150592&cp=&sr=1&a mp;origkw=grounding+block&kw=groundi ng+block&parentPage=search as it is curved on the base to match the curve of the pole.

Those arent the best pictures. The blue part is where the coax goes in, with the little hole in the center where the center of the coax goes. The pic doesnt show the threads. If you go to a store and see one in person it will make sense.

2008-06-06 13:37:56 by Harry T