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Product Description
Channel Master CM-3201 LTE Filter 
The Channel Master LTE Filter is designed to clear your OTA TV signal path from interference created by mobile LTE signals. It blocks LTE and 5G signals that can interfere with TV antenna reception, preventing issues like weak signals, pixelation, or channel loss.
How LTE Interference Affects TV Reception
Cellular LTE, 4G, and 5G signals from nearby towers and mobile devices like phones, tablets, and smartwatches operate above 600 MHz. While they don’t overlap with TV broadcast frequencies, they can still interfere with TV tuners, causing pixelation, freezing, or signal loss. Strong LTE signals, whether from a cell tower or a nearby device, can overload the tuner, leading to frequent disruptions and poor TV reception.
How the Channel Master LTE Filter Reduces Interference
The Channel Master LTE Filter effectively reduces interference from Cellular LTE, 4G, and 5G signals operating above 600 MHz. Using advanced filtering technology, it attenuates these unwanted frequencies before they reach your TV tuner, preventing disruptions from nearby cell towers and mobile devices. This significantly reduces Cellular LTE interference, allowing your TV tuner to receive a cleaner signal for improved reception and a more stable viewing experience.
Channel Master LTE Filter: Superior Performance & Specs Compared to Competitors 
The Channel Master LTE Filter outperforms competitors with industry-leading attenuation across the entire LTE band, ensuring maximum interference reduction. Smaller, lower-cost LTE filters struggle to match the superior performance of the Channel Master LTE Filter.
Competitors: See the Difference in Performance & Specs 
Competitor tests show a key difference —effective LTE filters must provide at least -50 dB attenuation. The two competitor filters shown offer significantly lower attenuation, allowing more LTE interference through. This issue is common across many competitor filters, reducing overall effectiveness.
New – Meets 2023 USA Standard for filtering/blocking 5G LTE signal and preventing TV antenna interference from cell phone and nearby LTE towers.
Innovative filter design enables enables high rejection properties and excellent return loss as compared to other brands
Passes signals up to 608MHz supporting all USA TV channels & attenuates 618MHz and above to block the new “600MHz” LTE band
Designed to support the latest TV antenna standards in the US including Digital HDTV, NextGen TV, ATSC 1.0 and ATSC 3.0
Blocks Interference from 3G, 4G and 5G Smartphones and Transmitters
Low insertion loss and class A RFI shielding ensures no compromises in signal level and quality
Professional Grade, All Metal construction desinged for indoor our outdoor installations
Compatible with all TV Antennas including Channel Master, Winegard, RCA, Antennas Direct and more
Important: Many types of interference are not related to LTE/5G signal interferences, this filter will ONLY help prevent interference reated to LTE and 5G signals and is a good addition to any TV antenna system.
Established in 1949, Channel Master Has Been Making High Quality TV Antenna Reception Products for Over 70 Years.
