What is Signal Loss and Gain?
Loss which results from a decrease in wave amplitude has a negative impact on the strength of your signal. On other hand, gain - Which is caused by an increase in wave amplitude, positively impacts your signal strength. Free space path gain loss is something that a lot of people don't think about when determining how much coverage a signal booster can provide in a building, home or vehicle.
What is Free Space Path Signal Loss?
Free space path signal loss is a weakening of the RF signal due to a broadening of the wave. This broadening of the RF wave is known as signal dispersion or beam divergence. As a radio wave travels further from its point of origin, the wave broadens which causes it to get weaker. You can think of it like ripples in water. The further the ripple travels, the weaker the waves get. Atmosphere has the same effect on radio waves. Free space path signal loss is not linear. It is based on the frequency, amplitude and the distance of the wave. For example, if you're using a Force 5 signal booster with a donor signal of negative 80 dBm, and a single indoor antenna, you will get about 50 decibels of free space path loss by the time you're 20 feet away from indoor antenna. Pretty significant, right?
How do you minimize free space path signal loss?
First choosing a cell phone booster kit that offers the most output power will be the way to go. Second, during installation, you will want to see maximum gain on your signal meter when you plug into the connector at the end of your cable run. Third, place your indoor antenna in the location where you most often use your mobile device to eliminate space between you and the source of the boosted signal.
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