Review on 📶 Enhancing Antenna Amplifier Signals: 2Pcs LTE Filter for TV Antenna Signal Purifier - Reduce Interference from Cell Phone Towers (5-695Mhz Frequency Range) by Luis Tuazon

NOTE. The picture quality was not rated because it was good before the test and did not change during the test. The "filter" is designed to eliminate UHF signals above 700 MHz. I couldn't say anything. I put the incoming signal (from my preamp) on the spectrum analyzer before and after installing the filter. The analyzer has been configured to display all signals from 600MHz to 1000MHz. Both spectrum analyzer displays were nearly identical. As far as I can tell, the filter didn't eliminate LTE energy. I photographed the displays before and after the filter was installed and the evidence is clear: this 'filter' does not do what is advertised. There was a slight drop in some signals around 800MHz, but in any case these were already fairly low amplitude signals - unlikely to interfere with any UHF TV signals. I bought two of these and they matched - both useless. I didn't have a cable leak because the other filter works fine. It cuts off signals above 600MHz, but when I say his name, they call me a recruiter. nope Retired engineer, doesn't sell anything.