New recommendation please

[SDkid1]

I'm new to OTA. Please help with antenna recommendations. I am out of my league here. Here is my TV Fool report.
http://www.tvfool.com/?option=com_wr...e1c66fccea4573

I live in Rancho Bernardo area of San Diego.
In an HOA and a tile roof. Ditched Dish a while ago.
Had Dish mounted on SW corner of my home.

I would like to get the Green/Yellow channels only 8/10/19/18/30/40.

I was thinking to mount an RCA ANT751 where my Dish antenna was (SW corner of hm) and point at 148 Magn. Also use RCA TVPRAMP1R.
Planned 30' run into hs to preamp then split into existing hs cable network to run 2-3 TV's.

Advice please.
What antenna do you recommend?
Where to aim?
Where to mount? Outside/attic? SW corner?
I like the RCA ANT751 with small footprint, good reviews, and can mount easily on facia.
Thank you in advance.

Daniel

[Tower Guy]

You need two antennas, a VHF aimed at 8 and 10 and a UHF aimed at the others. To keep the size down, consider a Y5-7-13 for VHF and a DB2 for UHF. Add them together with a UVSJ.

[SDkid1]

Could the Y5-7-13 and or DB2 be mounted in the attic?
I have stucco side walls and a tile roof.
Thank you.
Daniel

[Tower Guy]

Originally Posted by SDkid1

Could the Y5-7-13 and or DB2 be mounted in the attic?
I have stucco side walls and a tile roof.
Thank you.
Daniel

Those antennas are too small to work in the attic. The 2 edge refraction suggests that the larger antennas needed in an attic may not work either.

[SDkid1]

Thank you for your reply Tower Guy.
Okay. So it looks like exterior mount with 2 antennas.
Thank you.
Daniel

[tomfoolery]

If the satellite j-pole is still there, on the SW corner, perhaps you can use that mount (or reuse the holes from it if it's not there) for the H-VHF antenna, and add another some place else for the UHF antenna. Not as neat as all on the same mast, of course, but it is an option at least.

[SDkid1]

Thank you tomfoolery for your information.
Yes that is exactly where I'm headed.
The old sat dish j-pole is gone. And I have added 6" gutters to the 2x8 facia where it was mounted. And the facia is not exactly vertical. It is 90 degrees to the roof pitch.
My plan is to mount a beefy piece of 7x7 aluminum angle (about 10" wide) onto the facia.
That will be the foot for new j-pole in the SW corner to mount the Y5-7-13.

Then mount a DB2 at the front of the home. I have a place where I can somewhat hide it due to the small size. I found the DB2 is discontinued but still available refurbished.

I will have a long run from the DB2 to the SW corner Y5-7-13 and may need an amp.
Daniel

[SDkid1]

I installed the DB-2 in the front of the home and it works perfectly.
I installed the yagi Y5-7-13 in the rear of the home where the old dish was.
Used an under eave mount from Eave Mount dot com. $30 delivered.

The problem is with the Y5-7-13. I can receive Ch 8 with 3-4 bars of signal per TV. But Ch 10 I get only 1-0 bars and not usable.
It is aimed at 209 degrees magnetic. Both channels transmit at about the same power and from the same location.

Any idea what is happening with Ch 10 low signal?
Thank you.
Daniel

[tomfoolery]

Just a guess, but with the antenna close to the roof (any wire mesh under or in those tiles?), and the wavelengths of those two channels relatively close to each other, I'd guess there's just enough reflected or otherwise multipath signal on that one wavelength to cancel enough signal or otherwise raise havoc in the tuner. Raising or lowering the antenna may put it in a sweet spot. Or moving it around side to side (translating, not rotating).

How are the two coax cables joined? UVSJ, or standard 2-way splitter in reverse?

[SDkid1]

Thank you for your reply tomfoolery.
1. No wire mesh in the clay tiles.
2. Joined with UVSJ connector. But the UHF side is open for now until I receive the 100' cable to join the DB-2.
3. The Y5-7-13 is about 4.5 feet off the roof at the mount point.
4. I will try raising or lowering but moving to another location is not a very good option.
5. How much would you suggest raising or lowering the antenna? 6", 1 foot, 2 feet, or?
Any other ideas? I thought both channel signals would be the same.
Thank you.
Daniel

+=>

If MyNetwork and The CW are not being received and will like to receive them.

XHDTV-DT , Real UHF channel 47 , http://www.mynetworktv.com.

XETV-DT , Real UHF channel 23 , http://www.cwtv.com.

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Install a , Antennas Direct , DB8e , UHF antenna . The DB2 will not be installed.

The DB8e antenna is installed <-->Above the Peak of the Roof<--> in such a manner that reception is not , obstructed , impeded , blocked , by the , attic , roof , building , in the directions of , South East , South , East North East.

The Y5-7-13 antenna will be installed on the same antenna mast as the DB8e antenna , the Y5-7-13 antenna will be about 3 feet below the DB8e antenna on the same antenna mast pipe.

The DB8e will be aimed at about 150 degree magnetic compass direction.

The Y5-7-13 antenna will be aimed at about 209 degree magnetic compass direction.

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Do not use the UVSJ.

In place of the UVSJ install a ,

http://www.antennacraft.net.

10G221 preamplifier.

Connect the DB8e UHF antenna to the UHF connection of the 10G221 preamp.

Connect the Y5-7-13 VHF high band antenna to the VHF connection of the 10G221 preamp.

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For 1 Tv connected use No splitter.

For 2 Tv's connected use a , Holland Electronics , HFS-2D , 2 way splitter.

For 3 Tv's connected use a , Holland Electronics , HFS-3D , 3 way splitter.

For 4 Tv's connected use a , Holland Electronics , HFS-4D , 4 way splitter.

Buy the , HFS-2D , HFS-3D , HFS-4D , splitters at , http://www.hollandelectronics.com , or , http://www.amazon.com.

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MyNetwork and The CW , are weak signal strength.

The antennas will need to be higher then about 15 feet above ground.

To that end , here are some and not all Above the Peak of the Roof antenna mounts.

http://www.ronard.com/34424560.html.
Use the , ronard(4560) , eave antenna mount.

http://www.ronard.com/ychim.html.
Measure around the chimney and use a , ronard(2212) , ronard(2218) , ronard(2224) .

http://www.ronard.com.

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Home Depot has , 10 foot 6 inch , 1 and 3/8 inch diameter , TOP RAIL , chain link fence , PIPE , that makes good antenna mast/pipe , the price is low at about about 12 dollars.

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Here is how to aim antennas , http://www.kyes.com/antenna/pointing/pointing.html.

Use a Real and Actual magnetic compass to aim antennas , do not trust a , cell phone , tablet and etc. compass.

As always , antenna aim can be adjusted for best reception.

Most Digital Tv's have a Signal Strength Meter and some Digital Tv's also have a Signal Quality Meter.

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Here is the , Federal Antenna Law , that says Yes can install Tv Antennas up to 12 feet above the roof , of Any Size so as to have Reliable Reception.

The point is , Reliable Reception.

Because Reliable Reception is the Main Point of Installing Tv Antennas.

http://www.fcc.gov/mb/facts/otard.html.

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Also know this.

As always , trees and tree leaves , plants and plant leaves , have a Negative Effect on Broadcast Tv Reception and so do buildings and other obstructions including your own , attic , roof and building in the directions of reception.

Some and not all Negative Effects are.

Absorbing and Blocking Reception.

Multi-Path Reflecting Tv Signals Bouncing All Around.

The Best Practice for Reliable Reception is to install the antennas at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including the roof and building that the antennas are installed.

The directions of reception are , South East , South , South , South West , East North East.

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Because of continuing reports here at tvfool of question askers that are having reception problems with the 2 VHF high band Tv Stations.

At your reception location are at 209 degree magnetic compass direction.

KFMB Real VHF high band channel 8.

KGTV Real VHF high band channel 10.

I do not recommend the smaller Y10-5-13 antenna.

I recommend the larger for better reception , Y10-7-13 antenna.

http://www.antennacraft.net

[tomfoolery]

With multipath signals, some reflections or diffracted signal can cancel, and some can reinforce, or anywhere in between. Since the wavelengths are different for two different channels, it's possible that the antenna location is fine for the mess that's coming its way on channel 8, but not fine for channel 10 (shorter wavelength signals won't have the same interference patterns - similar, but cancelling or confusing in different locations).

I'd try moving it up, down, and even aiming it off to one side or the other a bit, as you might be able to cut down on some of the multipath bombardment by aiming it differently. Worth a try, and it's free. Though moving it by many feet (for high-VHF, which has much longer wavelength than UHF) may be what's needed to find a sweet spot.

There's a web site often referenced here with a nice explanation of multipath and its effects that has great graphics, but I can't find it. This is the best I can find. http://www.hdtvprimer.com/antennas/fixes.html

[SDkid1]

Thank you for your reply tomfoolery.
Could it be that there is a simple explanation/solution for my situation?
Ch.10 shows weaker than Ch.8 on the report.
And that is what I see on my TV signal strength.
Maybe I just need a stronger antenna?
Please advise. Thank you.
Daniel

[ADTech]

Re-locate the VHF antenna and try again. Try several spots that offer a clear view towards La Jolla. You've got a really big hill or mountain right in front of you and the signals coming around it are likely to be both very weak and very scattered. Just because a mounting location is convenient doesn't mean the signals are going to play nice and be there in adequate quality and power. You often have to go seeking them and that takes patience. My usual advice is "Don't drill any holes until you've verified satisfactory reception in that spot".

Here's what your signal path to channel 10 looks like:



Now you can see what you're up against.