TV Antenna Mast

Looking for one with both 300 ohm and 75 ohm inputs, preferably with a remote gain control.

Look for the lowest noise figure and the highest gain as a start. I've used a Galaxy preamp for over 20 years with no problems. I also use a Channel Master preamp for my Digital Converter Box to get stations a far as 75 miles on UHF. It works great. Not familiar with any that have a remote gain control.

2008-07-10 18:16:58 by blamay22000

Demolition of 33 year old TV antenna tower in Jumeirah, Dubai, UAE. The tower will be replaced by fiber optic system.

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.

2009-02-03 07:51:54 by bucky

Price: $8.99 $5.52

Gold color
Galvanized and heavy duty
4 1/2' Mast mount extension antenna accessory

I have a house in Tijuana with a phillips HDTV antenna. it is on a mast that goes up in the air about 8 feet. But to which direction should I point it. Sometimes for some unexplained reason I can get HDTV channels from San Diego but they only last a little while and the signal fades.

Try This

DTV Antenna
Type Call Sign Channel Network City, State Live
Date Compass
Heading Miles
From Frequency
Assignment
* yellow
uhf XETV-DT 6.1 CW TIJUANA, MX 177° 2.9 23
* red
uhf KGTV-DT 10.1 ABC SAN DIEGO, CA 316° 24.0 25
* red
vhf KFMB-DT 8.1 CBS SAN DIEGO, CA Feb 17, 2009 (post-transition) 316° 23.9 8
* red
vhf KGTV-DT 10.1 ABC SAN DIEGO, CA Feb 17, 2009 (post-transition) 316° 24.0 10

Or go to antennaweb.org and select 91243 as the zip (San Ysidro) and then pick a place as close to the border as possible.

2009-01-27 20:00:33 by Oliver S

Price: $13.79 $14.99

Galvanized Steel
5 foot mast
Universal with all antennas

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

i have an outdoor vhf/uhf combo antenna,first the leads are touching the mast of the antenna and i was wondering if this would cause resistance in my signal,2nd i have the lead for the vhf on one side of the transformer and the uhf lead on the other side,one side is 300ohm and the other is 75ohm;which side is for vhf and which side is for uhf?or can i put both on one side?the reason for asking is-i have really good signal from an hdtv broadcast station,but another station from close to same location hasn't made the total switch to hdtv and their signal is poor. hope someone can help...thanks

digital is now going in UHF brand, so I would ditch a VHF antenna because its really bulky and UHF tend to be smaller antenna's. Right now channel master 4 bays are really good UHF antennas. Just google the channel master4221HD antenna, also a good pre amp will give you a boost.

2009-05-31 09:13:43 by the rock