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Which VHF-low Antenna?

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Old 09-01-2009, 10:20 AM   #1
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Default Which VHF-low Antenna?

I have been getting all OTA stations from Memphis untill the big switch, when WMC ch 5 went from 51 to 5. I have a radio shack U-75R w/ a RS pre-amp. My planes are for a CM-7777 and aWinegard HD-5030 or YA-6260 for the vhf-low. Either of these be a good choice? Thanks



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Old 09-01-2009, 11:46 AM   #2
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To Travis1414,

Just a few thoughts.

1. Since a radio shack U-75R is primarily a UHF antenna, its not surprising it flops on real channel 5.

2. Since WMC-DT comes in fairly strong it will not take a real excellent low VHF antenna to bring it in.

3. Either of your antenna choices are fairly expensive, were it me, I would pitch the radio shack antenna, and get one of the older style antennas tuned to channels 2-69, thus avoiding any join antenna complexities. And gain more collection area in the process.

4. Be careful of pre-amp choices, chances are those two low power stations only five miles away would overwhelm a cm7777
amp.
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Old 09-01-2009, 04:09 PM   #3
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I suppose I got lucky when I bought this Radio Shack UHF antenna 2 years ago. I have 2 Dish Network DVR's hooked to it and I am getting 95 to 100% on all channels except WHBQ ch 13 which is mid 60's. of course nothing on ch 5. Are we talking a cm3671 with pre-amp or something way smaller. Recomendations appreciated.

If I use a pre-amp can I overdrive my receivers? If so, do they make attenuators for specific channels?

Thanks
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Old 09-01-2009, 04:33 PM   #4
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To compare apples to apples, you would have to look at a chart that compares most commercial antenna's. What I would look at is performance and price.

A good performing antenna might receive a UHF and VHF station as well as a poor antenna and some sort of pre amp - which has a high amount of noise and probably muddies up the signal as much as it amplifies it.

At 25 feet, you would have 14 stations or translators.

Depending on how many stations you wish to receive and how much wire you plan to run and how high up on the main roof or tower you wish to go, you could probably get away with a Winegard 7698P and a Winegard AP 8700 if your main antenna run was about 50 feet and have twice the performance that another antenna or pre amp would give you.
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Old 09-01-2009, 04:49 PM   #5
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The Winegard 7698 is a *high* vhf/uhf combo and does not meet the OP's requirements since he needs a low vhf channel (WMC, ch 5). Also, the OP has a very strong local channel (KTEJ) which would likely overload the AP 8700.

It is possbile to block KTEJ, ch 20. See posts 6 and 8 in this thread: Single Channel Attenuator ??? Ch 48, KTVJ, is also problematic for the OP since the antenna will likely be aimed nearly directly at this broadcast tower.

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Old 09-01-2009, 05:04 PM   #6
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Thank you I am new to this, so I need a 2-69 combo? I thought I read somewhere not to put a lot of stock in db gain levels.

I need to try maybe a HD 7082 w/o a pre-amp or something bigger than that?
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Old 09-01-2009, 05:08 PM   #7
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I am only trying to receive ch 13 and hotter channels. Thanks
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Old 09-01-2009, 05:13 PM   #8
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Quote:
Originally Posted by Travis1414 View Post
I am only trying to receive ch 13 and hotter channels. Thanks
Can you clarify what you mean? Do you mean you want ch 13 and all those higher on the tvfool report? Do you mean you only want channels 13 and higher?
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Old 09-01-2009, 05:19 PM   #9
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I a'm sorry, I want ch 13 and stronger on tv fool report nbc,cbs,abc,fox.

Thanks
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Old 09-01-2009, 05:36 PM   #10
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An HD-5030 combined with your U-75R on a UVSJ combiner would be a reasonably good way to go. The YA-6260 is a good antenna, but not with the UVSJ in your situation: This would shut out channels 8 and 13.

Try the combined antennas with your current amp. (UVSJ output connects with pre-amp input.) If it doesn't work well, I'm with NonMcTubber that a CM7777 would be too much amp here, thanks to those first three stations in the report. The high-input Winegard HDP-269 would be more suitable.

If the U-75R has been outdoors for more than a half-dozen years or so, consider chucking it and going with the HD-7082 or an HD-7084. Both are fine all-channel antennas that may not need an amp at all for one TV set.
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Old 09-01-2009, 05:41 PM   #11
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Okay, thanks for the clarification. Your choices are as you suggested: 1) add a low vhf antenna or 2) replace the existing antenna with one that will acquire all the desired channels. If it were me, I would go with a full range combo such as the Winegard 7084 and aim it ~130 degrees. Your three channels at the top of the list are very strong. KTEJ and KAIT will very likely come in off the back of the antenna and will be attenuated in part by the F/B ratio of the 7084. KVTJ will come in from the front of the antenna and will dictate which size pre-amp to use. To prevent overload, you need a high input pre amp such as the Winegard HDP 269 pre-amp. Do you even need a pre-amp? Please provide the following information: how many splitters are there and how many feet of cable in your distribution system?

HTH,

Rick
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Old 09-01-2009, 07:01 PM   #12
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Ok I will have 75' to 100' of RG6 with 3 tv's. So is this radio shack pre-amp pretty much junk?

Thanks
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Old 09-01-2009, 07:03 PM   #13
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Quote:
Originally Posted by Travis1414 View Post
My plans are for a CM-7777 and a Winegard HD-5030 or YA-6260 for the vhf-low. Either of these be a good choice?
If it were me, I'd buy three VHF antennas; one low band and two high band. I'd pick the Y5-2-6 for WMC, the Y5-7-13 for ABC, and the Y10-7-13 for FOX.

Use a channel 8 Jointenna to add the two high band VHFs and a HLSJ to add the low band to the high band. A UVSJ will add the VHF to the UHF.

http://www.amazon.com/Channel-Master...1849659&sr=8-5

Forget the 7777, it will overload for sure. Try it first without a preamp. The AP-2870 may do OK, as would the HDP-269.
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Old 09-01-2009, 07:11 PM   #14
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Quote:
Originally Posted by Travis1414 View Post
Ok I will have 75' to 100' of RG6 with 3 tv's. So is this radio shack pre-amp pretty much junk?

Thanks
IMO, a preamp is definitely needed to cover the distribution losses in your set up. Radio Shack does not publish specs on the pre-amps so it is difficult to know how good they really are... In general, poorer quality equipment is usually sold without providing specs. Whereas manufacturer's usually tote the specs on their quality products. If you were buying new, I would recommend the Winegard HDP 269. However, you do have the RS pre amp and it appears to be working okay for you. IMO, changing antennas will give you the biggest bang for your buck.
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Old 09-01-2009, 07:41 PM   #15
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Thank you all for the info. So many choices...
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