TV Fool  

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

Notices

Reply
 
Thread Tools
Old 30-Aug-2015, 2:10 AM   #1
lspecski
Junior Member
 
Join Date: May 2015
Posts: 16
Help with VHF on one of 2 TVs

Thie forum was very helpful previously in helping me build a VHF antenna. My reception is perfect on one TV with a short cable run. My second TV has a 100 ft run. The UHF signals are coming through perfectly, however, WPVI Philadelphia, 6.1 does not. I think I have identified the source of the problem which is a splice, on the long run. This splice seems to have no impact on the UHF channels, but I can's get a channel 6 on the long run, sometimes it's no signal, sometimes it is broken up. When I play around with the splice I can get a little better signal but never complete. Is there anything anyone can recommened for the point of the splice to improve the signal?
lspecski is offline   Reply With Quote
Old 30-Aug-2015, 3:20 AM   #2
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,747
I've seen this happen with cable signals. There is a gap in the shield or center conductor where contact is not quite being made. The high channels can jump that gap because of the capacitance across the gap, but the low channels can't.

Redo the splice with two new male connectors and an F81 coupler or replace the cable.
__________________
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; 30-Aug-2015 at 3:23 AM.
rabbit73 is offline   Reply With Quote
Old 30-Aug-2015, 4:01 AM   #3
lspecski
Junior Member
 
Join Date: May 2015
Posts: 16
Thanks, rerunning the cable is not an option, so I will try some higher quality connectors and keep trying the splice.

Quote:
Originally Posted by rabbit73 View Post
I've seen this happen with cable signals. There is a gap in the shield or center conductor where contact is not quite being made. The high channels can jump that gap because of the capacitance across the gap, but the low channels can't.

Redo the splice with two new male connectors and an F81 coupler or replace the cable.
lspecski is offline   Reply With Quote
Reply

Bookmarks

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



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 1:16 AM.


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