Quote:
Originally Posted by ChrisW6ATV
Since it is low-power, it may stay on the air indefinitely and be a remaining source for OTA analog tuner testing.
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Only if the TV set isn't the "intercarrier" IF strip type. That is, a 6MHz wide passband that feeds a video detector, which also produces a 4.5MHz FM sound carrier. Older sets had a completely separate sound IF.