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Originally Posted by PM from natureman
rbinck,
Just joined forum today and for life of me cannot find how to post...so hope its ok to ask you about my OTA set up.
Zip 65240
Just placed a TERK TV38 antenna on my 30' tower. There is a large black oak tree in my yard between tower and transmitters. The farthest transmitter is channel 17 at 37.2 miles away. My main channels are 6,8, 13,17 and 38 which is FOX, it is not a good reception at all.. I have a couple sets hooked up. The longest run is 109' from the amp in the attic. The cable run between amp and antenna is 16'. The amp is the RadioShack antenna mounted High-Gain Signal Amplifier.
I have just traded that amp for the RadioShack Di-directional with 4 outlets. The Di-Directional amp gave me good quility pics on channels 13 and 8. The rest of my channels were not very good..17 quite a bit worse than 13 (13 being nearly the same distance away yet 41 degrees diff in location).
My reception overall has improved with the antenna mounted amp yet on channels 8 and 13 I sometimes get(usually in evening)diagional transparent interference lines..that's the only way I know how to describe them. They are uniform and close together going from left to right and are much easier to see over black or dark areas of the pic. Channel 17 comes in the best now but it is of very high sharpness/contrast creating kindof a noise around edge lines...I want to say a "tingy" look. I worked in television production for several years as a videographer so my eye is pretty particular.
Now I will finally come to the question(s). Do you have any suggestions what I might try for better more uniform reception other than spend a bunch of $. I guess a two antenna system might help. Do you think I should throw the RadioShack amp away and purchse the Channel Master Titan 7777 you have talked about?
Sorry for the overload of the message but I wanted to give as much info as possible. Any help would be appreciated.
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It sounds like you must be getting analog reception. Digital TV either is a go or no go situation and is completely immune to the interference you have described. It can become pixelated and suffer from macroblocking and dropouts, but a digital signal would not have diagional transparent interference lines, as you described them.
The Channel Master 7777 is a low noise high gain preamp and IMO is a far better preamp than anything Radio Shack sells. The 7777 has an amplifier unit that mounts right at the antenna so that the coax between the antenna and the preamp is very short thus preventing additional noise from being introduced in the lead in coax before the amp. Then there is the power unit that would mount inside, in your case probably in the attic.
01-08-2006, 11:40 AM
OTA reception set-up
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