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Old 11-May-2015, 3:56 PM   #21
rabbit73
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Quote:
Now see this exact situation is why ive decided to not get the preamp. I read another situation where person had a antenne that when preamp was ine, his signal dropped to 0, but woth preamp off it came in over 80. Couldnt this posters problem possibly be preamp related?
No, not in the somerset case, it was because the two signals interfered with each other. The over 80 case was the one you read about, which could have been an overload problem.

The PROOF is that each was OK when operated separately.

Quote:
When either antenna is hooked up separately, most channels have a good signal (close to 100% strength and 100% quality).
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Last edited by rabbit73; 11-May-2015 at 6:43 PM.
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Old 11-May-2015, 4:00 PM   #22
ADTech
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Quote:
but woth preamp off it came in over 80. Couldnt this posters problem possibly be preamp related?
Absolutely. Either the amp was overloading internally or the amplified signal was overloading the tuner. Either is fatal to digital reception.
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Old 11-May-2015, 5:54 PM   #23
rabbit73
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Quote:
Originally Posted by Xesvuli420 View Post
Wanted to know if rabbit has experience with this model, or if he just said that because i can aim 2 directions
Tower Guy is a TV station engineer with many years of experience solving reception problems.

As ADTech told you, he has been in on the design and testing of the DB8E from the start, because he works for the company that makes it. He has given expert antenna advice many hundreds of times, if not thousands of times, on at least four forums.

I am 81 years old and have been experimenting with antennas since I was eight years old, when I built my first crystal set radio. Since then, I have experimented with many ham radio antennas, antennas for analog TV, and for the past 6 years with antennas for digital TV.

How many "experts" do you need before you are at least willing to try our ideas?

Here's the point:

Your problem is not simple, as it would be if all your signals were in the same direction. We want to let you know about some of the problems that you will be faced with, and not raise your expectations only to have them crashed on the rocks of reality. It is a lesson we have learned the hard way, from people that have been disappointed by their results.

I am always amazed when someone wants a simple system that duplicates what a CATV system does with multiple antennas, amplifiers, and modulators costing thousands of dollars. You will need to cut back on your expectations and settle for improving one direction or be prepared to spend a lot of time and money building a system that does what you want.



http://theoldcatvequipmentmuseum.org...index.html#top

Try one direction first, and see what you get.

We can't guarantee that our advice will work. We only have the information that you have given us so far. There might be other factors that you haven't told us, like trees and buildings in the signal path that the tvfool report doesn't take into consideration with its computer simulation.

I don't know your exact location, but I see a lot of trees in the general area NW of the center of Tobaccoville. See the attachments. Did I get close?

http://www.hdtvprimer.com/antennas/siting.html
scroll down to Trees and UHF

You can use the interactive map feature of tvfool to show the green signal lines that will help you aim your antenna, and to see what might be in the way. An example is in the third attachment. Enter your information here:
http://www.tvfool.com/index.php?opti...pper&Itemid=90
Attached Images
File Type: jpg Xesvuli420tvfTrees.JPG (128.8 KB, 424 views)
File Type: jpg Xesvuli420tvfMap.JPG (178.5 KB, 378 views)
File Type: jpg RichardSweLines (2)_1.jpg (125.4 KB, 387 views)
File Type: jpg CATVants.jpg (58.0 KB, 734 views)
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Last edited by rabbit73; 13-May-2015 at 2:25 PM.
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Old 12-May-2015, 3:36 PM   #24
rabbit73
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Xesvuli420:

It's time for you to try your new DB8E.

The coax should be grounded with a grounding block that is connected to the house electrical system ground with 10 gauge copper wire for electrical safety. For further compliance with the electrical code (NEC), the mast should also be grounded in a similar manner to drain any buildup of static charge, but the system will not survive a direct strike.

Please let us know the results of your tests on this same thread.

Best regards,
rabbit
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Last edited by rabbit73; 12-May-2015 at 3:45 PM.
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Old 27-May-2015, 1:42 PM   #25
Xesvuli420
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Hello again everyone. Just got back in the US and installed the antenna. I still have a lot of routing to do before final setup and test, but I just couldn't help myself but to run a sneak peek into the channels I have picked up. I used 130 degrees and 215 degrees. My HD Homerun picked up 37 channels on initial hookup. I'll edit this post later with pictures and final results!

I hope all of you are well!


UPDATE:
Having stutter problems on one of my routers, trying another access point now. HD Homerun pcks up 32-38 down to about 27 channels after bad channels removed each scan.

Old school coaxial in back of TV picks up 25 channels perfectly.

will update one more time after I finish splitters and routing in a few days!

See ya then

Last edited by Xesvuli420; 27-May-2015 at 4:32 PM.
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Old 27-May-2015, 2:25 PM   #26
rabbit73
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Thanks for the preliminary report; it sounds promising.
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Old 31-May-2015, 1:48 PM   #27
Xesvuli420
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Ok guys, after all the tinkering, and adjusting the antenna, the best I can seem to get is a follows:

Channel-Strength-Quality
31-100-75
32-100-75
19-85-100
29-95-100
51-80-95
33-90-100
43-20-100
23-50-55
35-8-90
22-55-60

That gives me about 25 watchable channels.

Because of the distance, my 2nd bay only adds an additional 2 channels, and those are between 40% and 50%. Looks like in my situation, a 2 bay antenna isn't all that helpful.

Any suggestions?
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