4G LTE signals adjacent to digital TV bands...
4G LTE signals adjacent to digital TV bands can cause interference without costly protection, said a white paper from broadband circuit maker MaxLinear. “Countries moving from analog to digital television coverage are discovering that LTE signals can interfere with digital…
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TV reception,” said MaxLinear in a press release (http://bit.ly/18ZFEaS) on the white paper, LTE Interference on Digital TV in Brazil (http://bit.ly/16zDpdo. To prevent the interference, digital TVs and set-top boxes need “interference rejection capabilities in the tuner, or additional signal filtering,” said the release. “Some countries that have recently deployed LTE services are finding that the cost can be up to $500 per home to fix the problem retroactively.” MaxLinear has developed technology to mitigate the interference, said MaxLinear General Manager Brian Sprague in the release. The white paper measured LTE interference in four cases that involved digital TV antennas, some in the presence of a signal amplifier, the release said. Four of the experiments used single-family homes, and the fifth was for a multi-dwelling unit, the release said.