AVS Special Member
Join Date: Jan 2000
Location: Salt Lake City, UT, USA
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You might be getting interference.
If your TV can get analog stations, see if there are any low-powered analog stations receivable in the area, and see if they are getting clobbered by interference (lines, bursts of static, etc). An AM Radio can also tell you if there are wide-band noise sources, like arcing switches/thermostats, electrical noise from motors (furnace blowers, etc).
Also, run a search on your location, on TVFool, AntennaWeb or Rabbitears.info. See if there are any new stations really close to you, that might be overloading the antenna amplifier.
Ken English, Sr. Engineer, KSL-TV.
"The postings on this site are my own and don't necessarily represent the Company positions, strategies or opinions."