2Pcs LTE Filter Improves Antenna Amplifier Signals - LTE Filter for TV Antenna Signal Purifier,4G /5G Filter Reduce Interference from Cell Phones Towers（ Frequency Range 5-695Mhz ）

We had an outdoor antenna installed, but could not receive our favorite channel. $350 wasted.Installed this product and it WORKED! Very happy with it!!

NOTE: Picture quality not rated because it was fine before I tested and unaffected during.The "filter" is supposed to eliminate UHF signals above 700 MHz. It did nothing I could tell. I put the incoming signal (from my preamp) on a spectrum analyzer before and after installing the filter. The analyzer was set to display all the signals from 600 MHz to 1000 MHz. Both spectrum analyzer displays were virtually identical. The filter didn't eliminate any LTE energy as far as I could tell. I photographed the displays before and after filter installation and the evidence is clear: This "filter" not doing what was advertised. There was a slight reduction in some signals around 800 MHz but these were already rather low-amplitude signals anyway -- not likely to interfere with any UHF TV signals.I bought two of these and they were a match -- both useless. I was not experiencing cable leakage because a different filter works fine. It cuts off signals above 600 MHz but f I give its name, people will call me a tout. Nope. Retired engineer, selling nothing.

Didn't help

Seems to help quality of picture.for some tvs with sideways connections. It's a tight fit to get on tv..still gets interference. But not as much

Filtered out interference as advertised

Honestly, didn’t notice any difference between using them and not… certain channels and different days seemed to have random quality and clarity. Noted clear weather days as a control, no clear difference.

Haven't ever used one before now and so far so good !!

I have an amplified indoor tv antenna...when I attempted to use the signal filter in tandem with my antenna...it made my antenna perform poorly and actually created more interference