TV Antenna Amplifier

Antenna amplification can be  confusing .

There are two types of signal amplifications that the technician needs to take into consideration regarding a satisfactory signal for your tv.

The first is usually called “antenna gain.” This is amplification  within the antenna. It is a term mainly used when discussing directional antennas.


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The gain being discussed with “antenna gain” isn’t really adding power to the signal. It’s more of a representation of how well the antenna converts the signal wave to an electric current. Directional antennas concentrate that ability in one direction, and sacrificing signal in another direction.

The other type of amplification is the signal after it is received. This is referred to as “amplifier gain” and will not make the signal better than what is received by the antenna.

Amplifier gain is used to overcome the loss in the line and noise from the digital tuners on the TV.

This distinction is important. If you can receive all the channels you need when hooking the antenna directly to one television, then amplification is only needed to overcome signal loss in the line due to cable connections and splitters.


Amplifier gain is mainly delivered from 2 devices, a preamplifier or a distribution amplifier.  They essentially perform the same function with a slight difference.


A distribution amplifier is installed just before the splitter and is used to amplify the signal for splitting to multiple TVs. Some distribution amplifiers, like the one pictured below, also function as a splitter.

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These amplifiers both have similar functions. Generally, if there is a long cable run before the splitter, try installing a preamplifier to see if it fixes the issue. On the other hand, if you see loss not from the line but the splitter, you will want to try using a distribution amplifier.

Please call us on 0411 273 648 for the owner, Mr. Denis Bowman to talk to you regarding amplifying your signal.