The Cel-Fi Quatra is an enterprise 4G repeater system designed to provide in-building coverage to large facilities and small-medium sized multi-storey buildings.
Quatra is a hybrid repeater design which follows a hub-and-spoke design. The system breaks apart the functionality of an inline amplifier by separating downlink and uplink boost functions between the hub, called the Network Unit (NU), and spokes, called Coverage Units (CU).
The system requires one Network Unit and between one and four Coverage Units which are interconnected by ordinary Ethernet cables. A typical system design would use one CU per floor on a multi-storey building, or one CU per warehouse in an industrial facility. Each CU is powered via PoE from the NU.
Ethernet cables are used to transmit a digital signal between NU and CU, allowing lossless connectivity up to 100 metres and up to 200 metres with a compatible range extender. This unique implementation allows Quatra to solve ordinarily complex Vodafone coverage problems with ease.
The Vodafone Quatra repeater can relay up to four bands simultaneously, with several bands supporting 2x2 MIMO for high speed data applications.
Recommended Use
While reasonably straight forward to install, Quatra must be carefully designed and configured in order to correctly function. As a hybrid DAS unit, Vodafone like all mobile network operators require R-Spectrum to conduct extensive RF design prior to approval of use at the building under investigation.
Vodafone Quatra functionality can be extended further using its QMA service antenna connectors, permitting connection to a building's existing passive DAS distribution cabling. The unit can also support connection to a Small Cell to covert the repeater to an On-Air system.
Technical Specification
| Parameter | Parameter | ||
|---|---|---|---|
| System Gain | 100 dB | Input Impedance | 50 Ω |
| Relay Bandwidth |
75 MHz
|
Simultaneous Bands |
4
|
| MIMO | Ingress Protection | ||
| Max. DL Power |
16 dBm
|
Max. UL Power |
22 dBm
|
| Operating Temperature | 0 to 40 °C | Dimensions |
250 x 188 x 55 mm (L x W x D) (NU)
|
| Weight |
1.2 kg
|
Power Supply |
51.3 to 56.7 Vdc, 2.22 A (via external supply)
|
| RF Connections | Notes |
|---|
| Data Connections | Data Rate | |
|---|---|---|
| 4x RJ45 Copper |
100BASE-T
1000BASE-T
|
Proprietary gigabit link, 802.3at PoE+
|
| 1x RJ45 Copper |
100BASE-T
|
LAN management port
|
| 1x RJ45 Copper |
100BASE-T
|
LAN management daisy chain
|
Documentation & Resources
About the Supplier
Nextivity, Inc. develops and sells in-building cellular coverage technology products and solutions. The Company helps wireless subscribers and increases radio frequency network capacity for mobile network operators. Nextivity operates in the State of California.
