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Improve Your Indoor Spark Mobile Coverage
27 May 2021

Nextivity's Cel-Fi GO repeater is a cabled 3G/4G mobile signal ampliöer that provides up to 100dB of signal gain. It is a øexible solution optimised for stationary applications like homes, offices, building, factories and warehouses, to amplify the mobile signal from outside and disburse within your building.



Provides Coverage for Custom Applications

Cel-Fi GO is øexible for advanced installations. No longer will you need to move to a particular spot to be able to make and receive phone calls. Your Cel-Fi GO can be configured to improve the mobile coverage for many types of applications including homes, offices, buildings, factories and warehouses.

Increases Mobile Data Speeds

Slow internet speeds on your mobile phone are often caused by low signal. If you suffer from low signal, you will be able to relate to the frustration of trying to access email or the internet. Cel-Fi GO will amplify the available LTE/HSPA mobile signal and increase your data speeds.

Extends Mobile Phone Battery Life

Mobile phones use a lot more energy when in poor signal areas. The phone adjusts its internal power output to compensate in an attempt to boost the poor signal. As a result, the phone will consume a lot more battery power. Using Cel-Fi GO, your indoor mobile signal should be higher, and your battery will last noticeably longer for you to work and talk.

Eliminates Dropped or Missed Calls

Never miss or lose an important call because of coverage issues again. Cel-Fi GO will provide continuous coverage so you can be contacted when required. No longer do you have to put up with calls dropping out or terminating during conversation.

Improves Voice Quality

The quality of a voice call is usually determined by the phone’s signal strength and nearby interference. With improved signal strength inside your building, the Cel-Fi GO will provide crystal clear voice quality for your cell phones. 



Amplifes and disburses a Spark 3G /HSPA/4G (LTE) mobile signal.

Provides automatic selection of the best bands in 3G and 4G without manual intervention.

Once installed, Cel-Fi GO has Automatic Gain Control (AGC) continuously monitoring system path loss to deliver maximum gain up to 100 dB.

Provides mobile coverage area of 900m2.

Rigid cast-aluminium casing with IP66 rating, suitable for adverse environments.

Network-Safe protection that monitors mobile base stations in real time to ensure the Cel-Fi GO does not interfere with the normal function of the mobile network.

Has an IP66 protection rating.

Uplink Muting Mode automatically shuts down uplink cellular transmissions when no active user equipment is detected.

Cel-Fi GO supports Bluetooth Connectivity or Micro USB connection to Nextivity’s Smartphone or PC WAVE App.

Intuitive WAVE App allows quick and easy installation by a trained technician.



Cel-Fi GO will provide coverage for 20+ active users depending on the mobile network capacity in your area.



Cel-Fi GO requires an indoor and outdoor antenna to work. Available in packs.

Your Cel-Fi GO is approved by Spark if installed correctly. Only qualiöed resellers who have undertaken product training should perform installation of Cel-Fi GO.

Misuse of this equipment could result in injury and equipment damage.

Cel-Fi is the choice of professionals to improve in-building mobile coverage.



Cel-Fi GO for Spark

3G 850 & 4G 700/1800 MHz

Up to 100 dB per band

Size: 28MM (H) 87MM (W) 255MM (L) Weight: 850g

Operating temperature: 0° to 65°C Relative humidity: 0 to 95%, noncondensing

12 VDC via external supply
External supply: 100 to 240 VAC, 47 – 63Hz.
Power consumption less than 15W per unit

SMA Female Outdoor Antenna Connector (50 Ω)
SMA Female Indoor Antenna Connector (50 Ω)

CE Mark, CB Mark, RCM, PTC, R-NZ

Cel-Fi GO is covered by a 24-month warranty.

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