Do you have a preamp connected? If so, what make/model?
What's the total length of coax from the antenna to the tuner?
Can you describe the layout from the antenna to the tuner?
(Ex. Antenna, 2 feet of RG-6, UVSJ combiner, 10 feet of RG-6, splice, 50 feet of RG-6, 8-way splitter, 15 feet of RG-6, tuner)
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