Consumer Electronics Site .com

TV Antenna Grounding


Antennas Direct Antennas

Antennas


Antennas Direct DB8 Multidirectional HDTV Antenna
(Electronics) Antennas Direct

Impedance of 300/75 ohm
Range of up to 70 miles or more
Works up to 70 miles or more from transmitters
Weatherproof construction
Very flexible aiming characteristics


Price: $753.99

Antennas Answers

Are Grounding Blocks for a Tv Antenna Coax Cable necessary? What can happen if Coax is not grounded?

I have a good idea how to ground the Antenna itself. I am going to run the copper #6 wire from the antenna mast to the ground spike below.
Or I could run it around the house to th ouside spike already there.

I am pretty sure my Tv antenna guy did not ground the coax with a grounding block.


You are correct, the mast needs to be grounded for lightning protection. Use a heavy gage copper wire and route it to a grounding rod. Make sure there are no sharp bends in the wire and keep it as short as practical.

A grounding block is also a good idea to protect the input to the TV. They are inexpensive and should also be connected to a grounding rod via a wire with no sharp bends.

Not grounding your antenna and down lead will invite lightning damage to your house and electronic equipment.

Coat-Hanger UHF TV Antenna [ GROUND PLANE]


This antenna is made from such materials available in any home :-)

Does the grounding wire for a tv antenna have to always be bare and made out of copper?

I want to run a ground wire to my tv antenna on the roof. I have plenty of copper wire that is coated. Can I use this coated wire or does ground wire have to be bare.


coated is fine, just peel back the cover on both ends. Copper is the best conductor and won't rust.

TII 212 Broadband Cable TV Lightning Surge Protector
TII Antennas

Price: $21.99

Protects expensive HDTV receivers, DVRs, cable modems, etc. from potentially damaging surges.
Protection element is designed to reset after each surge event, with a service life of up to 1500 surges.
Unique In-Line® design is virtually transparent to all analog or digital signals from DC to 1GHz.
5-year warranty when purchased from an Authorized TII Dealer. Warranty not valid when purchased through other outlets.
Provides superior protection against high and low voltage transient surges.

TV Antenna (rooftop) Grounding?

I installed an antenna on my roof. I am running an insulated copper wire from the mast to either a galvanized steel or an aluminum rod (not sure which - I got it from my neighboor who is an HVAC worker) driven about 5 ft into the ground. The coaxial cable from the antenna is run into a grounding block which is also grounded to the same steel (aluminum?) rod by insulated copper wire. After the grounding block, the coaxial is then run into a splitter used by the cable company in a box outside my house (from when I used to have cable). The cable company's splitter is attached to some sort of grounding plate which has a short copper ground wire attached to my electric box. Coaxial cable is run from the splitter and into my house at two different locations, each about 10-15 ft from the splitter.

Does this sound like it is properly grounded to bleed out static electricity build-up? Any concerns about grounding it to two different places (rod and electric box)?


Well its seems your TV antenna is properly grounded and also try to put tape on your grounding block for water insulation.

Can I run my outside tv antenna cable along side of my grounding wire?

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.

Proper grounding of a outside TV antenna listed in section 810?



http://www.mikeholt.com/cgi-bin/codeforu m/ultimatebb.cgi?ubb=get_topic;f=7;t=000 414


  • Buy Cheap Antennas

  • Outdoor Antenna Grounding - DTV USA Forum

    I just installed my Antennas Direct DB4 on the side of my house last week but I have not messed with the ground of it yet. My problem is, I have a planter and sidewalk directly below the antenna that wraps around my house, so I'd like to install a ground rod about 25' away to the East side of my house if possible. I can maybe run the ground wire through the attic to the other side of the house, then down and below to the ground where I could put a ground rod. Is this ok? Is this possible or do I have to mess up my wife's lovely rose bed. Also, I think I need to use a coax antenna discharge unit but my question is where do I place it? My coax runs from the side of the house up to the roof,...

    Read more...

    News

    eSpymall.com Introduces Four 2009 Model Indoor HDTV TV Antennas at ...

    PR Web (press release) - Sep 02, 2009

    with free ground shipping. Two of the outdoor antennas from eSpyMall.com have a remote controlled rotor so that it would be easy to rotate the antenna. and morenbsp;raquo;
    Making Noise About DTV Received Power

    TV Technology - Aug 19, 2009

    Making #39;Noise#39; About DTV Received PowerNow, we go back to the roof, remove the termination and reconnect the TV antenna. Then we return to the spectrum analyzer and repeat measurements of the and morenbsp;raquo;
    Reportlinker Adds World Radars Market Report

    IT News Online - Sep 10, 2009

    II-9 Transit Time II-9 Frequency Modulation II-10 Speed Measurement II-10 Minimizing Interference Effects II-10 Radar Engineering II-10 Antenna Design. and morenbsp;raquo;
    LA fire likely to pass across Mount Wilson

    CNET News - Sep 01, 2009

    The USFS also said firefighters would battle the blaze from the air rather than on the ground. Firefighers have already been pulled from Red Box, and morenbsp;raquo;
    Subir Roy: The cobweb of wires is clearing

    Business Standard - Sep 08, 2009

    Cable TV is now rapidly giving way to the dish antenna and Direct to Home (DTH) broadcasting. Soon, going by the way DTH broadcasting is spreading even to
    Fixit: Tornado left damage over a 4.5-mile path

    Minneapolis Star Tribune - Sep 06, 2009

    Q My TV has a converter box and a new antenna, yet I still cannot get the PBS station. What is the problem? A You may want to try a double rescan,
    NASA ISS On-Orbit Status 7 September 2009

    Space Ref (press release) - Sep 08, 2009

    NASA ISS On-Orbit Status 7 September 2009 Afterwards, Gennady was to conduct a 2:45h test on the KURS-P Antenna #1 (AKR-VKA) feeder circuits in the SM, doing circuit checks with the FSH3 spectrum and morenbsp;raquo;