Originally Posted by Seeth Ransom
I am also a little confused by the Percentage of a digital signal. How much lock is required to have a nice picture?
This percentage, and how it is measured, differs among the brands of tuners on the market (Sony, Samsung, LG, etc.). The built-in over-the-air tuner in my Dish Network receiver needs a signal strength of at least 67% for the channel to be watchable. Slightly below this point, the picture will be broken up into many pixels or freeze, and the audio will continually drop out. Below about 61% there is no reception at all, and the signal strength meter will default to 49% (a black screen). The meter shows only one other percentage below 49%, and that is 0%.
An ideal picture is in the 76-93% range. (I haven't seen it go any higher).
The built-in tuner in the Sanyo TV that you plan to buy will most likely measure signal strength differently than the Dish receiver and it will have different thresholds for decent reception. (It also might not offer any percentages at all, like some set-top box OTA tuners).
In my location, my receiver cannot get any reception of the channel where you live, WHPX-DT in New London. Distance, station transmitting power, terrain, and the type of antenna that I have are all factors. These same factors will determine what digital channels your future TV's tuner will be able to lock on.
In reference to the "I" channel mentioned in an above post, the PAX network recently renamed itself "I", standing for "Independent Channel". So antennaweb.org apparently means that a Marlborough viewer can receive WHPX, the "I" affiliated station from New London (analog Channel 26).