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Discussion Starter · #1 ·
Hello all, I am new to the forum, but I'm glad to have found a nice solid HDTV and AV forum.


My question is this. Getting a HDTV antenna and 8vsb cart for my Dish Network system is the last piece of the puzzle I need for my HD local broadcasts. However, I am in a rural part of Baltimore City (believe it or not), and even though I am close to all the stations, I am surrounded by huge trees. I bought a Terk TV 55 antenna, and I tested it out on the regular VHF channels, and the reception is horrible (due to the foliage I believe). Does this mean my local HD stations will not come in? Will attaching the antenna to the roof make a difference?


As a point of reference, my HD channels start at 38, which is in UHF range I believe.


Thanks!!




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Michael Mullis

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I'm surrounded by huge trees. My antenna points straight at a 60 foot elm tree. Everything seems to work fine. That's my experience.
 

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Your problem is the TERK55 antenna or the aiming of it, although -

UHF is affected by high foliage (I live in the middle of a forest 23-25 miles from the transmitters). VHF seems unaffected by foliage - my reception of NTSC channel 5 is as perfect a picture as you can possibly ask for. I'm amplifying UHF with 30dB (admittedly, a Radio Shack amp) and still get a fuzzy/snowey picture on quite a few UHF channels this time of year (until the leaves fall). I'm hoping that I will still have sufficient headroom when I finally get a DTV tuner.


Getting the antenna out of the attic is almost always a GOOD thing.
 

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Discussion Starter · #4 ·
Mike: And your HD reception is strong? I may have to go ahead and put this thing on the roof then.


Scooper: The odd thing is that according to Terk, you simply point the front of the antenna towards the transmitters and that should be fine. I would hate to have to invest in a rooftop mast antenna. I could care less about my SD signals, but if I can't get decent HD reception, this thing is worthless to me.


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Michael Mullis

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Michael, A rooftop uhf antenna doesn't need to be expensive. Radio Shack has a decent model for $30, a 5 foot mast for about $7. Of course, if you need a vhf antenna for dtv, you'll pay more. Art
 

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Discussion Starter · #6 ·
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Michael, A rooftop uhf antenna doesn't need to be expensive. Radio Shack has a decent model for $30, a 5 foot mast for about $7. Of course, if you need a vhf antenna for dtv, you'll pay more. Art
I didn't mind paying the $120 for the TV55, my fear is the DTV reception quality due to the huge trees in my yard, which, as luck would have it, are in the direction I have to point this thing. http://www.avsforum.com/ubb/rolleyes.gif


But with my DTV channels starting at 38, I thought that was the UHF band.


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Michael Mullis

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I'm not familiar with the layout from Baltimore City, but it is likely that if all fo the stations are in the same general direction (up to a 120 degree spread) that an outdoor mounted double or quad bow-tie antenna with a back screen will perform much better than the Terk by providing higher gain, greater vertical multipath rejection (helping cut down on the reflections from trees) and better rejection of reflections from behind. If signal levels are low due to attenuation from foliage you may also need a preamplifier, but check it out first.


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Michael,


I am using a ChannelMaster 3021 and get great reception, the best part is the antenna is only about $25. Mine is in the attic, and is aligned directly at the transmitters through several large trees. I am about 30 miles from the towers and get 100 for signal strength on the DST-3000 and 98-100 on the Sony and am not using a preamp on the antenna.


While the Terk is probably a good antenna, the flat, small profile of the 3021 makes it easy to install and use, and it seems to have great gain in the high UHF range as well as a good front/back ratio. I am using it with an Antennacraft VHF only with a CM UHF/VHF combiner to get all the locals, one of our DTV stations is in the VHF band. Also, as noted above, on the roof is better than in the attic, the attic is just easier for me and I have no need to move it due to strong signal strength. If you need a preamp, the CM 7775 is highly recommended by many.


Check out http://www.starkelectronic.com which is where I ordered mine.


Warren
 

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Your best bet would be to return the Terk and buy a traditional UHF antenna. Terk's really don't work well at all. A good antenna at radio shack shouldn't run you more then $15-25.
 

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Your best bet would be to return the Terk and buy a traditional UHF antenna. Terk's really don't work well at all. A good antenna at radio shack shouldn't run you more then $15-25.
 

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Discussion Starter · #12 ·
What do you know about the ChannelMaster 3010? I'm wondering if having any amplification would help. If it's not a big deal then my other question would be if I went with the 3021, should I get a rotator?




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Michael Mullis

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Scooper,


Make sure your amplifier supports VHF and UHF. If it doesn't specifically say "UHF", it probably does not, and you may be hurting your UHF reception more than helping it. I had the exact same problem, and getting a VHF/UHF amplifier was the solution.


I am 25-30 miles from all stations, my antenna is in the attic, and I get all stations just fine.


Buddy


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I had bad reception and there was a tree in the way. So I climbed up, almost killing my self, and cut the top off the tree. It had no effect. I added RG11 cable and reaimed the antenna and I now get good reception. However the folaige had no effect.


Rick
 

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My amp is supposed to support UHF, and I CAN see the difference between it being there and not being there, or even how much I turn it up and down.


The Channelmaster 7775 or the Winegard AP4700 / AP4800 are on my wish list, though. Part of my "problem" is that the local PAX channel (47) just blasts everything else UHF off into oblivion. I REALLY would like a notch filter to tone down 47 while leaving the rest of the UHF band alone.
 

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Discussion Starter · #16 ·
Thanks for the help everyone. I have a plan I'm going to try out.


I just picked up a tripod roof mount and mast. I'm going to put the Terk up on the roof, and see what happens. Hell, I already have the antenna. The Terk tech support guys told me once I'm above the roofline, the tree foliage should not really affect regular signals, and definately should not have any effect on HD signals, being as I am less than 50 miles from the transmitters (I think I'm less than 20 from my local CBS and FOX).


If it works with HD but not regular signals, no problem, most of what I watch will be HD. But if the HD is affected, then I'm taking the antenna back and going with a Channel Master, or one that you guys have selected.


I'll keep you up to date if anyone cares. http://www.avsforum.com/ubb/smile.gif




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Michael Mullis

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