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Old 13-Oct-2011, 11:51 PM   #1
cjkitty
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Join Date: Oct 2011
Posts: 1
sanity check -- need new antenna??

Hi. Forgive the following if it is too terse, as I just spent an hour typing in a detailed previous version of this query, only to have it lost forever in the ether because the forum decided I was not logged in. (And no, the back button didn't help.)

Great.

Well... let's try again. (And this time carefully copy to clipboard before hitting submit!)


The question will come down to these 2 points:
(a) do we need a different antenna?
(b) is there a way to receive virtual 2 (real 43) and virtual 6 (real 40) better?


My map:
http://www.tvfool.com/?option=com_wr...60b5ac537047a4

Background info:
We have two antennae, both the old style, with a VHF segment (8-9 ft) and a UHF three-pronged segment (4-ft central prong, two 2-ft angled prongs).
Each antenna is connected to one digital TV.

We pretty much just care about the major networks. Others are nice add-ons.

We have a north-facing antenna to which a Radio Shack amplifier (cat # 15-2507) is attached. We have been getting stations well, except for virtual 2 and 6 which are fairly inconsistent, and sometimes 8 is patchy. During some atmospheric conditions, other stations also go out. Presumably due to our distance.

The other antenna we have pointed southward, and have not worried much about it. It has been getting 9 & 13 flawlessly, and 7 almost flawlessly. There are other stations, inc. a very weak analog 26 which is NBC (and which doesn't show up on the chart as such, but I'm not going to type all that in again!)

This is well & good, except that we are reroofing and don't want to have holes in our nice new tiles. So, we are relocating the antennae (one to an eave, one to an unused chimney). So while messing with it, we'd like to improve our reception if possible.

I figure to put a rotator on the south-facing antenna, to hopefully get more than what we have done -- esp. an NBC. To the north, all the stations line up very nicely at 10-12 degrees magnetic, so that direction is easy (though again the virtual 2 [real 43] and virtual 6 [real 40] are spotty).


I suppose another reason to get a new antenna (or two) could simply be physics: a smaller antenna would require less support and would be easier on the rotator. I suppose. [North-facing antenna is on a 10-ft mast, south-facing is on a 5-foot.]


Any corrections? Recommendations?

Thanks in advance,
CJ
^---^
=| o.o |=
\__v__/
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Old 14-Oct-2011, 4:30 AM   #2
John Candle
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Join Date: Jun 2010
Posts: 2,697
Tv Antennas and Reception

I recommend 2 Winegard HD7696P antennas , one aimed at about 151 degree magnetic compass and the other aimed at about 10 degree magnetic compass. A coax will go from each antenna to the location of the tv. The coaxes will be separate all the way to the location of the tv. Some tv's have 2 separate antenna inputs , if your tv has 2 separate inputs then the 2 coaxes will be connected to the 2 inputs. If the tv does not have 2 separate inputs then use a remote control A/B antenna switch , AB27RS . The HD7696P antennas should provide enough signal to the tv to not use an amplifier with either antenna. However if a preamp is needed , I recommend a http://www.antennasdirect.com PA-18 preamp. If one antenna needs preamp then use the preamp with that one antenna. If the other antenna needs a preamp then use a second preamp with that antenna. Do Not combine the 2 antennas on to one coax. Keep the antennas and coax separate. Here is how to aim antennas , http://www.kyes.com/antenna/pointing/pointing.html
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Old 14-Oct-2011, 4:36 AM   #3
John Candle
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Join Date: Jun 2010
Posts: 2,697
Tv Antennas and Reception

Here are some antenna mounts , http://www.ronard.com/34424560.html , http://www.ronard.com/ychim.html. Here are places to buy antennas and etc. , http://www.solidsignal.com , http://www.amazon.com , http://www.starkelectronic.com , http://www.3starinc.com , http://www.winegarddirect.com
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Old 14-Oct-2011, 4:41 AM   #4
John Candle
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Tv Antennas and Reception

Use new RG-6 coax from the antenna and on the outside of the house. And if any other coax needs replaced then use new RG-6 coax.
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Old 14-Oct-2011, 2:21 PM   #5
Tower Guy
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Location: Delmar, NY
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Quote:
Originally Posted by cjkitty View Post
I figure to put a rotator on the south-facing antenna, to hopefully get more than what we have done -- esp. an NBC. To the north, all the stations line up very nicely at 10-12 degrees magnetic, so that direction is easy
I'd get as much antenna gain as possible for the Portland stations. Do do so consider two antennas, one VHF, one UHF. My favorites are the 91XG and the Y10-7-13. Combine them in an AP2870 preamp.

Use your existing antennas and preamp on a rotator for south and the other directions.
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