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Re: Question re: DTV Converters


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Posted by n9lhm on March 16, 2009 at 07:46:51 from (69.48.41.2):

In Reply to: Re: Question re: DTV Converters posted by rbel on March 16, 2009 at 03:49:39:

Yes, reflections. Digital TV is a stream of data, and the system sees reflections as duplicate, extraneous data.

Most of the difference between the firs-generation receivers and fifth-generation receivers is the ability to reject the duplicate data. They are a LOT better, but not perfect.

Tuner front ends are much more sensitive than they were twenty years ago, and the need for in-line amplifiers is not nearly what it used to be. Amplifiers can easily make the situation worse by causing overload and generating spurious signals. Check your signal strength indication before concluding that you need an amplifier. Many of the signal "quality" displays actually indicate signal-to-noise ratio along with signal strength. Recheck the display after putting an amplifier in the line to make sure that the reading hasn"t gone down.


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