TV Fool  

Go Back   TV Fool > Over The Air Services > Help With Reception

Notices

Reply
 
Thread Tools
Old 31-Dec-2013, 2:14 PM   #1
VTHack820
Junior Member
 
Join Date: Dec 2013
Posts: 4
High VHF problem

Hi there-

Hoping someone can help me. First, here's our TVFool report:

http://www.tvfool.com/?option=com_wr...46ae9379d62802

As you can see, we live in the NYC area (central NJ) and should have line-of-sight reception for most stations. I installed a Winegard HD7694P High Definition VHF/UHF Antenna matched with a RadioShack® High-Gain HDTV-FM Signal Amplifier (Model: 15-259). It is mast-mounted at the top of a gable, appox 25 feet AGL and the cable run is well below 100 feet.

TV model is an LG 37LK450 37-Inch 1080p 60 Hz LCD HDTV.

We used the TVFool report to position the antenna directionally (using a compass, of course). After a bunch of reading sounds I think I have what seems like a High-VHF reception problem.

We are near some high-voltage transmission lines (maybe 200 yards away), in case this info is helpful in that interference could be a problem.

Someone in one of the threads here indicated adding a second antenna, an Antennacraft Y5713 High VHF antenna. Anyone think this would help?

I greatly appreciate any insight anyone could provide!
VTHack820 is offline   Reply With Quote
Old 31-Dec-2013, 10:14 PM   #2
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
Have you tried removing the amplifier and it's power supply? The stronger signals should do quite well without it, and if overloading, it may be making reception worse, not better.

What stations are giving your trouble? (call sign & real CH-#)
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

(Please direct account activation inquiries to 'admin')
GroundUrMast is offline   Reply With Quote
Old 1-Jan-2014, 1:02 PM   #3
VTHack820
Junior Member
 
Join Date: Dec 2013
Posts: 4
Sure have. Didn't help.

Here are the channels we should get but aren't:

WABC Ch7
WNJB Ch8
WBPH Ch 9
WNXY Ch 10
WPIX Ch 11
WHYY Ch 12
WNET Ch 13

Thanks much!
VTHack820 is offline   Reply With Quote
Old 1-Jan-2014, 3:18 PM   #4
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,941
If you are not getting ANY high-VHF, then you've probably got a problem in one of the following:

Antenna incorrectly assemble or bad balun.
Defective coaxial cable.
Defective tuner in TV.
Electrical/electronic noise interference.

Start simply. Try a basic set of rabbit ears connected directly to the TV and run a scan. If still nothing is received, that rules out the first two items.

Try the rabbit ears on a different TV set or converter box. If still nothing, that likely rules out the third item and leaves you with the probability of interference/noise being the issue.
__________________
Antennas Direct Tech Support

For support and recommendations regarding our products, please contact us directly at https://www.antennasdirect.com/customer-service.html

Sorry, I'm not a mod and cannot assist with your site registration.
ADTech is offline   Reply With Quote
Old 13-Jan-2014, 2:10 PM   #5
VTHack820
Junior Member
 
Join Date: Dec 2013
Posts: 4
OK, tried those things ....

Thanks folks! Forgive the tardy follow-up, I've been traveling.

I have tried basic rabbit ears, and that didn't work.

By moving the TV to a diff area of the house, I have cut down cable run considerably. That helped me pick up many more channels but I'm still missing 7-13 ... EXCEPT for 9.1 and 9.2.

I should note: I thought perhaps the antenna's board went bad, so I replaced it. It had no impact on the problem. I have also tried re-locating the antenna to multiple points with no result on ther 7-13 HighVHF problem.

So ... do you all think at this point I should try a specialized High VHF antenna? Or, something else?
VTHack820 is offline   Reply With Quote
Old 13-Jan-2014, 4:10 PM   #6
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,941
Channels 9.1 & 9.2 are not VHF, that's a UHF station operating on channel 38.

Based on my previous post, that leaves you with a probable case of interference.
__________________
Antennas Direct Tech Support

For support and recommendations regarding our products, please contact us directly at https://www.antennasdirect.com/customer-service.html

Sorry, I'm not a mod and cannot assist with your site registration.
ADTech is offline   Reply With Quote
Old 13-Jan-2014, 4:20 PM   #7
VTHack820
Junior Member
 
Join Date: Dec 2013
Posts: 4
OK - so if it is interference, what can I do about it?
VTHack820 is offline   Reply With Quote
Old 13-Jan-2014, 7:02 PM   #8
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,941
Short answer: Find and eliminate the source of interference.

Long answer: Could take a whole book. This one's a bit dated but still useful: http://www.fcc.gov/ftp/Bureaus/Mass....ook.pdf‎

Also, see http://www.fcc.gov/guides/interference-defining-source

Unfortunately, unless you can get a spectrum analyzer and someone to operate it, there aren't too many other options.

Wish it were easier.
__________________
Antennas Direct Tech Support

For support and recommendations regarding our products, please contact us directly at https://www.antennasdirect.com/customer-service.html

Sorry, I'm not a mod and cannot assist with your site registration.
ADTech is offline   Reply With Quote
Old 13-Jan-2014, 7:35 PM   #9
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
At a minimum, a tuner and portable antenna that has some directional capability is enough test equipment to begin looking for locations that have more or less reception or impairments. Your sleuthing skills will need to be used...
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

(Please direct account activation inquiries to 'admin')
GroundUrMast is offline   Reply With Quote
Reply

Bookmarks

Tags
highvhf, nyc

Go Back   TV Fool > Over The Air Services > Help With Reception


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off




All times are GMT. The time now is 6:35 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC