27. Should I use an LTE filter with my antenna?

If LTE signals are strong enough in your area and you put them through an LNA, the signals can cause distortion products that spread out through the whole TV band, not just the adjacent channels. The distortion products of an overloaded amp include frequencies that are differences and sums of all the different signals going through the amp.

An LTE (Long-Term Evolution) filter is typically used to mitigate interference from nearby LTE or 4G cellular signals that could negatively impact the performance of TV signals, especially in areas where these signals are strong. The placement of the LTE filter in relation to a TV signal amplifier depends on the specific situation and setup.

In most cases, it's recommended to install the LTE filter before the TV signal amplifier. Here's why:

1. Filtering Interference: An LTE filter is designed to block out unwanted LTE frequencies while allowing the TV frequencies to pass through. If the filter is installed before the amplifier, it can prevent LTE interference from reaching the amplifier and possibly being amplified along with the TV signal.

2. Amplifying Clean Signal: Placing the LTE filter before the amplifier ensures that the TV signal that is being amplified is already free from LTE interference. This can result in a cleaner, higher-quality signal being amplified, which can lead to better picture and audio quality on your television.

3. Protecting Amplifier: If LTE interference reaches the amplifier, it could potentially overload the amplifier or cause other issues that degrade the TV signal quality. By placing the LTE filter before the amplifier, you're protecting the amplifier from potential interference-related problems.

Here's the typical order of installation:
   Antenna --> LTE Filter --> TV Signal Amplifier --> TV or Distribution System

However, every setup can be unique, so it's important to consider your specific situation. If you're unsure about the best placement for the LTE filter in your setup, you might want to consult with a professional who specializes in antenna and signal distribution installations. They can evaluate your situation and provide the most appropriate guidance.

You can also consider using our ZapperBox A1 Antenna by Televes. This antenna has all three components built in: Antenna, LTE filter, and amplifier. It also has a built-in antenna for 4G/LTE routers.
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