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what to buy and where to point it?

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Old 05-31-2018, 05:32 PM   #1
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WileyOne's Avatar
 

Join Date: May 2018
Posts: 16
Default what to buy and where to point it?

When I said the bi-directional capability had been "debunked", I was referring to a testing report by Pete Higgins. Apparently, he had some stations that would come in fine with the 4-bowtie half of the antenna but, when he added the other 4-bowties (pointed in a different direction), the reception disappeared from the first antenna. The accepted explanation is that a "combiner" is really a splitter hooked up backwards, so it bleeds off part of the received signal and re-transmits it through the other antenna, instead of sending the entire signal down the wire. This issue can only be overcome by pointing both halves of the antenna in the exact same direction or by connecting two preamps before the combiner.
.
Here my situation. Perhaps somebody can recommend a workable solution:
  • Charlottesville: LOS 32 miles at 254 degrees: channels 16, 19, 32, 40, 46, all with NM's of 28 or better.
  • Richmond: 2edge 48 miles at 157 degrees: channels 12, 22, 25, 26, 29, 42, 44, all with NM's above 8.
  • the NBC affiliate on channel 32 is moving to channel 2 in 15 months. Wonderful. My only other NBC is on 12, the weakest VHF signal in Richmond.

Now, anybody with a map and a protractor can triangulate my house.

To get all these channels, I would need two antennas, one with UHF & VHF-high and one with UHF & VHF-low
Question for self: Is there anything in Richmond that I want to see bad enough to mount 2 gigantic antennas on my roof?

I'm thinking about buying the DB8e and pointing all 8 bowties at Richmond to run some scans, with and without a preamp.
Then I'll have a little better idea of what is possible. Who knows? maybe channel 12 will somehow find its way to my antenna .... we can only hope....
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Old 06-10-2018, 12:16 PM   #2
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Join Date: Jan 2017
Posts: 262
Default DB8,lol

Quote:
Originally Posted by WileyOne View Post
When I said the bi-directional capability had been "debunked", I was referring to a testing report by Pete Higgins. Apparently, he had some stations that would come in fine with the 4-bowtie half of the antenna but, when he added the other 4-bowties (pointed in a different direction), the reception disappeared from the first antenna. The accepted explanation is that a "combiner" is really a splitter hooked up backwards, so it bleeds off part of the received signal and re-transmits it through the other antenna, instead of sending the entire signal down the wire. This issue can only be overcome by pointing both halves of the antenna in the exact same direction or by connecting two preamps before the combiner.
.
Here my situation. Perhaps somebody can recommend a workable solution:
  • Charlottesville: LOS 32 miles at 254 degrees: channels 16, 19, 32, 40, 46, all with NM's of 28 or better.
  • Richmond: 2edge 48 miles at 157 degrees: channels 12, 22, 25, 26, 29, 42, 44, all with NM's above 8.
  • the NBC affiliate on channel 32 is moving to channel 2 in 15 months. Wonderful. My only other NBC is on 12, the weakest VHF signal in Richmond.

Now, anybody with a map and a protractor can triangulate my house.

To get all these channels, I would need two antennas, one with UHF & VHF-high and one with UHF & VHF-low
Question for self: Is there anything in Richmond that I want to see bad enough to mount 2 gigantic antennas on my roof?

I'm thinking about buying the DB8e and pointing all 8 bowties at Richmond to run some scans, with and without a preamp.
Then I'll have a little better idea of what is possible. Who knows? maybe channel 12 will somehow find its way to my antenna .... we can only hope....
That's becuse the DB8 it's only a UHF outdoor tv Antenna.
And you're old one was a vhf/uhf,combow
Fcc say's when buy an outdoor tv antenna
You should probably get a Winegrud -8200u
Combow or a channel master when it comes
Today's broadcasting TV channels,too funny
Good luck know I will get back to my Dxing
Channel's of 1500miles away,73everyone.
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Old 06-10-2018, 03:57 PM   #3
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I think he has solved this reception problem according to his latest report on June 9:
Quote:
Originally Posted by WileyOne View Post
Contrary to the results that some others have posted, I had great success yesterday with the Bi-Directional capabilities of the DB8e.
.
Eight panels pointed at Charlottesville.....................: 5 channels
Eight panels pointed at Richmond...........................: 8 channels (some from Charlottesville)
Four panels pointed at Charlottesville......................: 5 channels
Four panels pointed at Richmond............................: 5 channels
Four to Charlottesville PLUS four to Charlottesville....: 10 channels
.
As far as I can tell, I did not experience any "signal cancellation" from one set of panels to the other. Perhaps because my two cities are 98 degrees apart?
.
So, I'm thrilled with the antenna I selected.
Many thanks to all who provided guidance.
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Old 06-10-2018, 04:02 PM   #4
High Definition is the definition of life.
 

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Ok sounds good 73
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