Quote:
Originally Posted by timgr
Trees will clobber UHF TV signals - look here at "Trees and UHF" - http://www.hdtvprimer.com/antennas/siting.html
First thing to do is see if you can relocate the antenna to get above or between the trees. Really, this time of year should be the most favorable for obstruction by trees. When they leaf out in the spring, the obstruction will be much worse.
Not sure which antenna you have. There are a few possibilities from Terk.
Re the antenna, typically the more "omnidirectional" an antenna is, the less sensitive it is in its primary axis. So omnidirection is not helpful if you want to aim for a specific market, like Cincinnati or Dayton. And the antenna will always have a primary axis - so "omni directional" or "multidirectional" is really just "less directional" at the cost of sensitivity along the primary axis. And I presume the antenna has a built-in amplifier? That's also an issue, because strong signals can overload the amplifier, and if it's built-in you have no easy way to remove it ... turn the power off and the amplifier becomes an attenuator, reducing the signal a lot.
You could try a more directional unamplified antenna, aimed at either Cincinatti at 294 magnetic, or Dayton at due north. The RCA ANT751 is a good value. But you need to mount it so that it's unobstructed by buildings and trees, aimed at the direction you want to receive TV from. More height will probably help you too ... rerun your analysis with more height, say 30, 60, 120. This will say a lot about signal conditions at your locale. Look at older posts here for lots of suggestions on how to get more height. |
Thank you for responding,here is the Terk antenna currently installed on the roof,
http://www.terk.com/outdoor-antennas/?sku=LOGTVO
I see it does have an amplifier as you described,I also see it is directional.
Any advice for best way to raise antenna 15 feet? Thank you