Most often when using cellular phones, we experience issues like bad call quality, dropped calls, and slow internet speeds. You can resolve this by installing a cellular signal booster at your place. You must observe certain parameters when installing signal boosters, and this article explores the importance of antenna separation.
One of the most important factors that you must observe when installing a cell phone service booster is the separation between the outside and inside antennas of the device. If they are located too close too each other, it results in the formation of a positive feedback loop, also known as oscillation. When this happens, the output of the device is captured by the outside antenna and relayed back into the system. This increases the noise of the output signal, as well as affects other cellular devices operating in its service range.
Importance Of Correcting Oscillation
If the oscillation is not corrected, it affects cellular connectivity and can even damage the network. Because of this, telecom regulatory authorities stipulate that there must be an oscillation autodetect function in cellular signal boosters that reduces signal gain or shuts down the device. However, this results in the reduction of the coverage area of these devices. Also, in most cases, this is indicated by a red blinking light on the amplifier of the signal booster. If you notice this, adjust the gain or the separating distance between the inside and outside antennas to correct it.
Correcting Oscillation In Cellular Signal Booster
The most important step to avoid oscillation when installing a cellular signal booster is to keep the minimum separating distance between the inside and outside antennas. The horizontal separation is greater than the vertical separation which ranges between 25 to 30 feet. Besides, this also varies according to the gain of the amplifier used in the device. So, the ideal separation is achieved by a combination of these two.
It is recommended to orient inside and outside antennas at 180 degrees from each other. This cannot be done with an omnidirectional antenna as they have 360 degrees field of capture. So, they require a greater separating distance than directional antennas. Also, a wall between the two can lower the chances of oscillation. However, in cases where you cannot get the minimum separating distance, shields are used for the inside antennas.
On a final note, one of the best ways to avoid oscillation is to buy a cellular signal booster certified by the telecom regulatory.