TV Fool  

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

Notices

Reply
 
Thread Tools
Old 22-Jan-2014, 6:51 PM   #1
jj94tt
Junior Member
 
Join Date: Jan 2013
Posts: 2
ABC giving me problems East of Pittsburgh, Pa.

I have a Winegard HD-7696p mounted on a mast above my house with a Winegard mast mount amplifier w/ FM trap, this running to an 8 way passive splitter with 3 of the terminals capped. My reception is good on all channels but ABC, which broadcasts from about 4 miles from my house 60 degrees to the left of the main grouping. I can't seem to find a beam pattern of the 7696, but I am thinking that ABC is currently in a dead zone. Because the distance of the main channels is well within reach of this antenna, would it be possible to move them slightly off the main bean to get ABC a little further up on the side lobe?

http://www.tvfool.com/?option=com_wr...5b943bbd33298a

Any thoughts would be greatly appreciated.
Thanks.
jj94tt is offline   Reply With Quote
Old 22-Jan-2014, 7:04 PM   #2
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
Here is Winegard's specs for the HD7696P, http://www.winegarddirect.com/viewit...P%29&p=HD7696P

Certainly, try turning the antenna to see if you can split the aim...

If that fails to give acceptable results, a smaller, less directional antenna may work. (HD7694P, HBU-33, etc)

A separate UHF only antenna is an option. (Antennas Direct CS2 or DB2e) You could try a reversed 2-way splitter as a combiner... good luck. If that failed, tinlee.com may be able to sell a tuned filter combiner that adds only one channel to the main antenna down-lead. As I recall, the base model is an AC-7.
__________________
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 22-Jan-2014, 7:18 PM   #3
jj94tt
Junior Member
 
Join Date: Jan 2013
Posts: 2
Thanks for the advice. I did find that spec page for the Winegard, but perhaps I do not know how to interpret the data. I assumed the beamwidth data applied to various frequencies on the main lobe of the signal. For a decent guess of how to adjust the aim, I figured I needed the location of the side lobe of the beam pattern (degrees off main lobe). That spec page does not seem to list that info... at least, I don't think it does.

https://encrypted-tbn2.gstatic.com/i...O7H6Ui31PvTWjw
jj94tt is offline   Reply With Quote
Old 22-Jan-2014, 8:03 PM   #4
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,942
Quote:
For a decent guess of how to adjust the aim, I figured I needed the location of the side lobe of the beam pattern (degrees off main lobe).
It doesn't matter since Winegard uses a scaling factor on their polar plots that exaggerates the main lobe but gives little detail about any side lobes.

The 7696P data sheet is at http://www.winegard.com/kbase/upload/HD7696P.pdf
__________________
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.

Last edited by ADTech; 22-Jan-2014 at 8:05 PM.
ADTech is offline   Reply With Quote
Old 22-Jan-2014, 8:58 PM   #5
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
Much of a successful antenna install may depend on some on site experimentation with antenna placement and aim. In the end, pouring over data sheets is only an academic exercise. One needs to brave the elements, get up there and try adjusting the aim... Then you'll know the real results in your specific application.
__________________
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

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 4:23 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © TV Fool, LLC