Looking good! I also noticed that after going down on Fri+coming back up sometime Sat morning, I'm getting improved "signal quality" readings from WKRC-DT. On my Zenith receiver for example, prior to Friday, it would fluctuate slightly between about 95%-100% -- Since Fri, its "pegging the meter" 100% of the time.
Originally posted by jim tressler
Hey gang, while I am waiting for my Directv STB and High def tv.. I have been looking at OTA options.. I am about 20-25 miles from the antenna "farms" out in maineville - I can get the analog stuff fairly well with a simple set of rabit ears - so I figure for the digitals I should be ok - I checked the contour maps and I am actually about 50 feet above the base elevations of the towers with no hills in the way- problem is the WAF - looks like I am going to try an inside attic mount - I am looking at the Channel Master 3010 or 3030. I am assuming since it will be an attic mount, the larger 3030 will help overcome the fact that its inside - Is that a correct assumption? Also I have read alot of Radio Shack antenna bashing.. I was also looking at the VU-90 as well. Any advice anyone has would be appreciated!
VU90 or CM3030 should be good options for you, I'd think. Strangely enough I no longer see any outdoor antennas listed on RS site, I hope they aren't discontinuing them. I've not had any problems with my VU-210(10 years old, tower mounted). While its true there are antennas out there that are better performers and have better build quality than some of the RS antennas --- For the most part you are not talking about a big difference. A difference in gain of 1 or 2db on say, ch 56 or a bit "tighter" pattern directivity wise isn't usually going to make much, if any difference.
I hadn't heard of CM3030 before + can't dig up the gain specs, but if this is it ( http://www.channelmaster.com/images/3030.jpg
) then I'd think it would be a good choice. If you're going into the attic, probably the biggest thing(VHF/UHF combo wise) you can get that will fit+allow you to aim it properly wouldn't be a bad idea. You'll of course need either a rotor(which probably isn't going to work too well with a VHF/UHF combo in the attic) or seperate antennas/feedlines+a A/B switch near receiver if you want both Dayton+Cincinnati stations. Of course, you only need 1 antenna but different aiming for Dayton/Cincinnati to try it at first.
Then again, if you're getting good reception of the Cincy UHF analogs(19,25,38,48,54,61,64 - 25,38+61 are Low power so don't worry too much if they're a little snowy -- also -- you won't be able to tell much from the VHF's on 5,9,12) with your current antenna, chances are good that it might work fine for DTV as well. Certianly, what's good for improving analog reception is good for Digital as well - get the snow/ghosts or interference out of the analog UHF's, and you should improve your chances for getting good OTA (H)DTV reception as well.
I've found that oftentimes a "indoor" antenna such as Silver sensor or RS DBT ( http://www.radioshack.com/product.as...Fid=930%2D0998
) Combined with a VHF/UHF joiner to a a VHF "rabbit ears" (for WCPO-DT ABC 10) will work well if placed near a window that faces the towers.
I've only tried it for a few hours at a time just to see if it worked, but I can get the Dayton(12~14 miles)/Cincy (27~32 Miles) digitals except WCVN-DT/WKOI-DT fine with one of these $3 UHF antennas ( http://www.radioshack.com/product.as...%5Fid=15%2D234
) combined with rabbit ears for VHF, if I place the antenna near a 2nd story window facing the towers.(E window for Dayton, S window for Cincy). I do not have "line of sight" as I'm down in a valley with hills in the way. Analog UHF reception with this is quite snowy and ghosty(but the best I can do from indoors), digital reception is perfect(or, at least it was when I was checking it :-) -- Analog reception is completely horrible and unwatchable from the attic -- and there's no digital reception except from 1 Dayton station from attic here -- and just barely -- no matter how "good" or big the antenna is.
YMMV of course, and there are a lot of factors involved, especially concerning how well a indoor or attic installation will work out for you -- Farther than 15 miles or so out from the towers, and indoor reception can become especially problematic -- but, we have plenty of folks in Dayton/Cincinnati getting good results with attic antennas from as far out at 50 miles.
Anyhow, I wouldn't recommend the CM3010 -- and especially so for a indoor installation -- Its VHF section is OK(just because VHF is so "easy to receive" --- it's pretty much VHF rabbit ears) ... but its UHF section is especially weak -- it's basically just a UHF "rabbit ear" cut for ch 17. It *might* do better outdoors than any antenna you could put indoors though -- Hard to say -- It is pretty much one of those antennas that let you put it outside(or on the dish mast) while doing its best to tackle the WAF ....
Then again, in your specific circumstance(given the direction of Cincy towers) I suppose one of those dish clip on antennas *might* work well, perhaps better than anything you could put indoors. Putting the antenna indoors will attenuate the signals by about 15db in a best case circumstance, probably more.
And don't forget .. One of the most important things is to put the antenna in a "sweet spot" for reception -- that is true for the attic, anywhere else indoors and even outdoors(although to a lesser extent). Moving the antenna as little as 6" or a couple of feet to right/left or back forth or up/down can especially make a BIG difference in the attic or anywhere indoors. ANYTHING within about 10~15 feet or so from the antenna (in the direction it is "aimed" becomes, in effect connected to the antenna and effects its performance.
Some of my below reply to Dimitriz might be of use to you as well :
Excellent info on Antennas and Reception can be found here:http://www.kyes.com/antenna/antennadex.html
Originally posted by Dimitriz
Hey guys, I just got a new HDTV (my 2nd one) a Sanyo 30" WS from Walmart. It has the OTA tuner built in. I am trying to get some OTA channels that TWC doest carry.... (Fox..., I know they are finally coming to TWC in Sept). So far I tried to go the cheap way and tried 2 Jensen antennas from BestBuy. 1st one had gain of 30 and it kinda sucksed so I got the 2nd one that has gain of 45 and while it's better I still get huge ups and downs in receptions.
By now I am thinking of putting in a bigger antenna in the atick to get better signal, hower I know nothing of what antenna/amp. I should use.
I live in Loveland, right on Butterworth/Rt48. (45140) According to antennaweb I am less then 20 miles from the stations that I want to receive.
Much of the info in my above reply to Jim should also apply to your situation as well. Best, and most important thing I would stress would be to get a little extra feedline and move the antenna(whatever antenna you are using) around to try to find a "sweet spot" for good reception before placing it in a "permanent" spot. A spot near the TV might not work very well, but a spot 15 feet away next to a window, or who knows, a spot 5 feet away inside a closet might work well -- you'll just have to experiment to find the best spot and a antenna that will work well for you. As noted above, the Zenith Silver sensor and the RS DBT are good UHF indoor antennas.
As for preamp - I would try it without a preamp(or a "amplified" antenna) first -- a preamp really isn't going to get you "more signal" at the antenna, but if you have a long cable run+are splitting the feedline to many TV's, a preamp can help recover that loss, and in some circumstances, a good preamp with a low noise figure can improve the "noise figure" the front-end of your receiver sees, a poorly designed(such as what you get with most indoor "amplified" antennas), or overloaded preamp can make it worse -- much worse. Among other things, the following article has some good information (including tests) on preamps and why we use them :http://www.geocities.com/toddemslie/UHF-TV-DX.html
Hope some of this helps in some way (its actually not as "complicated" as it might sound) + good luck guys ...