Cel-Fi GO - 3G & 4G Repeater for Optus

The Cel-Fi GO for Optus is a highly effective repeater designed to improve mobile voice, text, and data coverage. This model has been designed to improve Optus 3G and 4G services in a matter of minutes.

Setting up the repeater to improve indoor mobile coverage is simple. The unit has an input connection and an output connection which are set up as follows:

  • Input connection: connected to roof mounted antenna by cable
  • Output connection: can either connect directly to an antenna, or can use one or more cables to distribute signal elsewhere.

The Cel-Fi GO works by decoding and amplifying weak signal detected by the roof mounted antenna. This signal is then boosted up to 100 dB using a linear amplifier and output through the antenna or series of antennas connected to the output port.

Mobile services can be distributed throughout a large home or building by using a series of antennas, creating localised hotspots of 3G or 4G service. This type of system is known as an Off-Air Distributed Antenna System (DAS) and needs to be carefully designed to ensure proper functioning and compliance with Optus regulations.

Optus have extremely tight restrictions on how this unit may be operated so as to prevent interference to their network. R-Spectrum in partnership with Powertec can develop an Optus-compliant solution for your building.

The Optus Cel-Fi GO can operate on one frequency band at a time. With Optus shutting down its 3G network over the next few years the unit should be set to operate on the 700 or 1800 MHz 4G networks which provides both voice and high speed internet services.

Recommended Use

This model isn't normally available for online purchase. The R-Spectrum team will use this unit in developing a tailored mobile coverage solution for you.

Technical Specification

System Gain100 dB Input Impedance50 Ω
Relay Bandwidth
20 MHz
Simultaneous Bands
MIMO Ingress Protection
Max. DL Power
16 dBm
Max. UL Power
22 dBm
Operating Temperature0 to 65 °C Dimensions
255 x 87 x 28 mm (L x W x H)
0.6 kg
Power Supply
9.6 to 28.8 Vdc via external supply
RF Connections Notes
1x Female PCB, End Launch
SMA Female input (from Donor Antenna)
1x Female PCB, End Launch
SMA Female output (to Service Antennas)

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.