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post #12991 of 12995 Old Yesterday, 05:51 PM
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I'm not aware of any bad RG-6 cable although the loss varies a little. There are lots of places to buy cheap RG-6. If you need a 120' piece and two 20' pieces it is best to buy a spool, cut to length and put on your own connectors.

Don't buy quad shield thinking it is lower loss. It is not. Regular RG-6 is fine for 99.99% of uses.

Chuck
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post #12992 of 12995 Old Yesterday, 07:13 PM
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Multipath is reflections of the main signal off of objects that arrive at the at the antenna at different times and interfere with each other. Often these reflected signals appear as noise to the tuner and causes the signal not to decode because the signal-to-noise ratio is too low. Antennas mounted in attics and indoors can suffer from this more than outdoor antennas. Attic and indoor antennas are not line-of-sight locations.




That will work. You don't need to ground an antenna in the attic but you can if you want to. Grounding only protects a system from charges induced from nearby lightning strikes and not direct hits.

Chuck
I appears the antenna won't go in the attic or should I say my mind figured I could install it there BUT my 69 year old body took a look and said not worth the effort as I had extra thick Insulation installed higher R rating and it was fluffed above the trusses to hard to walk with out perhaps stepping thru sheetrock. Now on to plan B Exterior Antenna with the longer cable run.
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post #12993 of 12995 Old Yesterday, 11:53 PM
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Now on to plan B Exterior Antenna with the longer cable run.
If you buy the bulk RG-6 and put on your own connectors, make sure that they are attached solidly. Some of the F-connectors screw on, and they're easier to install, but they don't hold well. Try to get the type that you crimp on, and then make sure that they're crimped on good. You don't want the one up at the antenna pulling loose on you.

Larry

My complete SF Bay Area DTV Station Lists: http://www.choisser.com/sfonair.html
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post #12994 of 12995 Unread Today, 09:45 PM
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I am looking to install an antenna and am asking for help as I read the Winegard HD8200U Platinum HD VHF/UHF Antenna, is a good antenna It appear to be kinda large 110 inches long as I recall. I am near the coast my old antenna finally corroded away, it was a Radio Shack (model & size unknown) years ago it finally corroded do to the salt air think I paid 40 bucks for it 20 years ago. I got a decent picture with it but at was located on my deck with a shorter cable run aprox 40 to splitter. I believe I get a strong signal here at my home.

The new installation length of coaxial is aprox

Antenna to splitter is 121 to 130 ft long
1st tv to splitter is 15 -20 ft long
2nd tv to splitter is 20 -25 ft long

I am hoping to not need a preamplifier for my antenna I have a trees about 1/4 away from the antenna and then more trees beyond that not a forest just folks landscaping etc over wise it would be a clear shot to San Francisco and beyond I have included a couple of sites below from TV Fool and Antenna Web with I hope you can pull up to see my situation. I do hope my cable lengths are not to long if I don't get a good signal I will install a preamp. I am hoping to get the antenna up 15' so the smaller it is the easier to lift the support pipe. If I could place a smaller antenna in my attic I could avoid corrosion and then have a shorter cable length Antenna to splitter is 30 to 35 ft long
1st tv to splitter is 15 - 20 ft long
2nd tv to splitter is 20 - 25 ft long

Hope I am making a bit of sence & have included the facts you require. Thanks

http://www.tvfool.com/?option=com_wr...8e03d9851b4f61

http://antennaweb.org/Stations.aspx?...on=-122.706618
Going with placing the antenna out side with the total cable length as indicated in quote above with this tool be of use to me http://www.solidsignal.com/pview.asp...source=inhouse
or should I just point it in the general position ( some on gave me the compass reading think it was 114 but would check, Years past I would just turn it till wife holler STOP pic is good : ) I already have lots of toys I mean tools and gadgets. Thanks
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post #12995 of 12995 Unread Today, 11:40 PM
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Going with placing the antenna out side with the total cable length as indicated in quote above with this tool be of use to me http://www.solidsignal.com/pview.asp...source=inhouse
or should I just point it in the general position ( some on gave me the compass reading think it was 114 but would check, Years past I would just turn it till wife holler STOP pic is good : ) I already have lots of toys I mean tools and gadgets. Thanks
You are in an excellent reception area for OTA tv.

But things work differently now with digital tv -vs- analog that you should be aware of.
In the past, analog tv used VHF-UHF channels 2 through 69. As you creep up the channel dial, the antenna element size required gets smaller.
The largest metal elements are used for channel 2, and the smallest ones for 69.

Then digital tv came along, tv stations were broadcasting both analog & digital signals, (but not on the same VHF-UHF) channel.
So KTVU 2 for example, would transmit analog on VHF-2, and digital on UHF-44, (note that 44 UHF, requires a small antenna element -vs- VHF)
Then analog tv shuts down, and the larger antenna elements used for analog Low VHF channels (major network tv) are no longer required.

Utilizing UHF tv channels gives major network tv a huge advantage with small indoor antennas required for quality reception.
The 2-1 channel displayed on your tv is NOT the UHF-VHF channel number. It is a entered programmed display.

Today, low power community, religious, home shopping, etc .... have selected Low VHF tv channels for broadcasting. (ch 2 through 6)
ch 2 through 6 requires the largest antenna made for reception. (The exact model YOU selected)

Keep in mind that the size of it, (Element size) is designed for full tv band coverage (VHF-UHF)
It is a top of the line model. BUT if you only watch PBS tv on a UHF channel, in that case it is overkill. And would not work better then a stand alone UHF only antenna.
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