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Optus Repeaters are also known as Boosters, Amplifiers, or Smart Antennas. Optus have approved a number of different styles of repeaters for use on their network, and while all provide full 5-bar Optus service they each have their pros and cons depending on where and how you are planning on using a repeater. All repeater kits consist of three main components:

Donor Antenna: this is the antenna that connects to the Optus base station. The base station provides a signal input to the repeater through the antenna. It’s important that the donor antenna is mounted high and clear of any metal obstructions so that it can pick up the best quality signal possible.

Repeater: this is the main part of the kit. The Repeater connects to a power source and uses an amplifier circuit to add up to 100 dB of power to the Optus signal. Signal comes in via the Donor Antenna and is broadcast out through the Service Antenna.

Service Antenna: this is the antenna which rebroadcasts the now strong Optus signal. Signal is always broadcast at full 5-bar strength from the antenna. As you move away from the antenna the signal will slowly decrease, so to provide more consistent coverage throughout a larger building more than one Service Antenna may be needed. In models like the PRO and Quatra the service antenna is built into a special unit called a Coverage Unit, but more on this later.

All Optus repeaters are designed to operate on the main Optus frequency bands. In rural and low signal areas this is almost always either 3G 900 MHz or 4G 700 MHz. In city areas boosting these low frequency bands is not always a good idea because of the large number of overlapping towers. Your Cel-Fi repeater may instead choose 1800 MHz, 2100 MHz, or 2600 MHz as it’s preferred Optus carrier because they have a shorter range and usually a cleaner signal.

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