TV Fool  

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

Notices

Reply
 
Thread Tools
Old 13-May-2015, 11:23 PM   #1
markfromct
Junior Member
 
Join Date: Jun 2012
Location: manchester, ct
Posts: 15
Opinions please

http://www.tvfool.com/?option=com_wr...f1f020d031033d

Hello all,

What would you guys shoot for here. I have stations in three locations, Hartford, New Haven and Springfield. Would my best bet be to get a UHF antenna and aim west and hope to pick up WTNH in New Haven along with the Hartford stations?

Or should I get a VHF-UHF antenna and use a rotor to stations from all 3 locations?
markfromct is offline   Reply With Quote
Old 14-May-2015, 1:24 AM   #2
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,551
Welcome, Mark:

You have a lot of strong signals from Hartford (the first 5). As you have noticed, ABC is missing from that direction, but your first simple plan might not work because ABC is on real channel 10 which is a VHF channel. The UHF antenna wouldn't pick up ABC WTNH very well, especially since it is much weaker.

You might be able to use a VHF/UHF combo antenna with a wide beamwidth aimed between Hartford and New Haven, but favoring New Haven for ABC. The difference between ABC and NBC WVIT is about 31 degrees. The Winegard HD7694P has a beamwidth of about 39 degrees for channel 10.
http://www.solidsignal.com/pview.asp... Antennas&sku=
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 14-May-2015 at 1:58 AM.
rabbit73 is offline   Reply With Quote
Old 14-May-2015, 1:57 AM   #3
markfromct
Junior Member
 
Join Date: Jun 2012
Location: manchester, ct
Posts: 15
Thanks for the reply. If I went the route of the Winegard HD7694P do you think it would be worth getting a rotor so I could pull in the Springfield stations? WWLP and WGGB
markfromct is offline   Reply With Quote
Old 14-May-2015, 2:13 AM   #4
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,551
That antenna would be suitable for those stations, if you aimed in that direction. But when you use a rotor, that's a more ambitious project.

You have to consider how many TVs you have. If you have more than one TV, who gets to decide on the antenna direction? Do you want to wait for the rotor to swing the antenna around? Do you want to repair a broken rotor in the middle of January? Is your TV able to add a channel after a scan (like my Sony) or will you need to rescan every time you change direction?

I kind of favor two antennas with an A/B switch to avoid the rotor.

Oh, and while I'm asking questions, are there any trees in the signal paths at your location, or will the antenna have a clear shot at the transmitters? I took a look at the satellite view of your estimated location and saw a lot of trees.
Attached Images
File Type: jpg markfmctTVFmap (2).jpg (201.1 KB, 166 views)
File Type: jpg markfmctTVFsat.JPG (106.7 KB, 168 views)
File Type: jpg markfmctTVFsat2.JPG (306.1 KB, 157 views)
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 14-May-2015 at 2:50 AM.
rabbit73 is offline   Reply With Quote
Old 14-May-2015, 11:07 AM   #5
markfromct
Junior Member
 
Join Date: Jun 2012
Location: manchester, ct
Posts: 15
Yeah, there are trees around, not as bad as that satellite view appears though, since I removed some a couple years ago.
markfromct is offline   Reply With Quote
Old 14-May-2015, 11:52 AM   #6
Jason l
Member
 
Join Date: Apr 2014
Posts: 96
I like my manual rotor with an antenna that works for uhf and vhf. (manual) I can turn buy hand from an extending the mast down to base.
Jason l is offline   Reply With Quote
Old 14-May-2015, 12:47 PM   #7
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,551
Quote:
Yeah, there are trees around, not as bad as that satellite view appears though, since I removed some a couple years ago.
That sounds hopeful; trees really mess with UHF signals.
http://www.hdtvprimer.com/antennas/siting.html
scroll down to Trees and UHF

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 how it works out for you on this same thread.
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 14-May-2015 at 12:49 PM.
rabbit73 is offline   Reply With Quote
Old 14-May-2015, 12:53 PM   #8
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,551
Quote:
I like my manual rotor with an antenna that works for uhf and vhf. (manual) I can turn buy hand from an extending the mast down to base.
That can work if you don't need to change direction very often. We call that an "arm-strong" rotor.
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html
rabbit73 is offline   Reply With Quote
Old 14-May-2015, 1:52 PM   #9
markfromct
Junior Member
 
Join Date: Jun 2012
Location: manchester, ct
Posts: 15
Do you think I am better off shooting for the ABC station in Springfield(WGGB) or the ABC station in New Haven(WTNH)?
markfromct is offline   Reply With Quote
Old 14-May-2015, 3:27 PM   #10
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,551
Quote:
Originally Posted by markfromct View Post
Do you think I am better off shooting for the ABC station in Springfield(WGGB) or the ABC station in New Haven(WTNH)?
ABC WGGB from Springfield is a UHF station on real UHF channel 40. You would be trying to combine it, using a splitter in reverse, with the UHF channels from Hartford. This is not easily done, because the same signals picked up from both UHF antennas might interfere with each other at the combining point if they are not in phase. Sometimes it works, sometimes not.

I think you should try the HD7694P aimed between New Haven and Hartford as suggested, to pick up WTNH.

If that doesn't work, try the 7694 aimed directly at WTNH, and add an RCA ANT751 with a UVSJ (UHF-VHF Separator-Joiner, AKA UHF-VHF diplexer) to pick up the UHF channels from Hartford. The 7694 connects to the VHF port and the 751 connects to the UHF port. The UVSJ, which looks like a splitter, is a low-loss device that contains a low-pass filter for VHF and a high-pass filter for UHF.
http://www.hollandelectronics.com/ca...-Diplexers.pdf

If that doesn't work, come back to this thread and let us know. I will probably suggest the RCA ANT751 aimed at Hartford connected to the antenna input of the TV, and a second 751 aimed at Springfield for WGGB, connected to a separate tuner. The A/V output of the tuner would go to the A/V input of the TV. You would switch antennas by using the TV input switch. If you want WGGB ABC and WWLP NBC from Springfield, use the 7694 for that direction, instead of the 751.

Disclaimer: I can't guarantee that my suggestions will work, but they are my best guess based on the information you have given. I'm still worried about the trees, I don't know how many TVs you have, and I don't know how long the coax downlead from the antenna will be.

I am fairly certain you don't need a preamp.
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 14-May-2015 at 6:36 PM.
rabbit73 is offline   Reply With Quote
Old 15-May-2015, 1:19 AM   #11
Tower Guy
Senior Member
 
Join Date: Dec 2009
Location: Delmar, NY
Posts: 1,165
My suggestion would be a UHF only aimed at 260 degrees coupled to a VHF aimed at WTNH. The UHF could be a C2 or a 4 bay bow tie. The VHF could be a Y5-7-13 or the VHF section of an ANT-751. Couple the two antennas with a UVSJ. This is best for multiple TV sets and casual viewing. You could use the HD7694p and a rotator for your more experimental TV set-up.
Tower Guy is offline   Reply With Quote
Old 15-May-2015, 2:53 PM   #12
markfromct
Junior Member
 
Join Date: Jun 2012
Location: manchester, ct
Posts: 15
Thanks for all the suggestions,lots of different options. I am tempted to go with the 7694P with a rotator since WWLP in Springfield carries the Patriots pre-season games.
markfromct 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 12:32 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC