TV Fool  

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

Notices

Reply
 
Thread Tools
Old 22-May-2015, 11:54 PM   #1
TsabPapa
Junior Member
 
Join Date: May 2015
Posts: 2
Ellioctt City, MD Problem with Ch.38 (ABC)

I have recently experienced a problem with intermittent reception problems with C Channel 38 (2.1), Baltimore ABC. My antenna signal and symbol quality fluctuate and I often loose reception. I have been having this problem for three months. I currently have a Winegaurd HD7694P in my attic (app. 25' ) connected to a HD Homerun dual tuner using about 30 feet of coax cable. I have no splitters , pre-amps or anything else attached. The antenna was originally pointed at 62 (Baltimore towers) and then at 220 (DC towers). I can catch the DC ABC station with better signal quality than the Baltimore ABC station. Channel 38 (2.1) reception is sporadic no matter what I tried. I have moved the antenna several times with no change. Any ideas on how to overcome the Baltimore ABC station signal issue?
Thanks

http://www.tvfool.com/?option=com_wr...f1f0d782e4c743
Attached Images
File Type: png Radar-All.png (78.7 KB, 1169 views)
TsabPapa is offline   Reply With Quote
Old 23-May-2015, 12:41 AM   #2
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,753
Are there any trees in the signal path?

If you have the problem with CH 38 when your antenna is aimed at 62° magnetic, and you don't have trouble with 40 or 46, I suspect tuner overload even though the antenna is in the attic. Try some attenuation like adding a splitter or two in the coax. A 2-way splitter gives 3.5 dB, a 4-way gives 7 dB attenuation.



Interpreting Noise Margin in the TV Fool Report
http://www.aa6g.org/DTV/Reception/tvfool_nm.html
Attached Images
File Type: jpg NMChartC.jpg (71.3 KB, 1561 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; 23-May-2015 at 12:50 AM.
rabbit73 is offline   Reply With Quote
Old 28-May-2015, 12:31 PM   #3
TsabPapa
Junior Member
 
Join Date: May 2015
Posts: 2
Thank you

I added a 2-way splitter and the Ch 38 signal quality appears better with less drop outs
TsabPapa 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 9:33 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright © TV Fool, LLC