Shenzhen Guanri Technology Co., Ltd. 5/F, West Building M-8, Middle Zone of High-Tech Industrial Park, Nanshan District, Shenzhen 518053, P.R.China
+86-755-26711296, 26711409
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The whole FOR system consists of two parts: Donor Unit and Remote Unit. They transparently convey and amplify the wireless signal between the BTS (Base Transceiver Station) and mobiles via fiber optic cables.
The Donor unit captures the BTS signal via a direct coupler closed to the BTS (or via open air RF transmission through the Donor Antenna), then converts it into optic signal and transmits the amplified signal to the Remote Unit via fiber optic cables. The Remote Unit will reconvert the optic signal into RF signal and provide the signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.
Cable-Access FOR: to receive BTS signal via a direct coupler closed to the BTS (recommended); Wireless-Access FOR: to receive BTS signal via a Donor Antenna (applicable when no fiber optic cable connecting to the BTS); can be sorted into 2 sub-categories: Band-Selective and Channel-Selective.| Pro | Con |
|---|
| No more self-oscillation and easy to choose installation location; For Cable-Access type, pure BTS signal picked up by the Donor Unit will greatly reduce the signal noise; The Remote Unit can be installed out of the BTS coverage; A full 360-degree coverage can be realized; No need to occupy frequency resource as the link frequency. | The total cost of equipment is higher; A fiber optical connection between the Donor Unit and Remote Unit is required. |
| Donor Unit | Remote Unit | ||
|---|---|---|---|
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