5G In-Building Coverage just got real!

The CEL-FI GO 51 is the world's first 5G-native intelligent signal booster for in-building coverage.

Compatible with all Australian carrier 5G networks - the  G51 targets coverage challenges in the mid-band 5G NR frequencies.

The solution can deliver Max Signal Gain of up to 100 dB - 1000x stronger - at stationary sites; and up to 70 dB or 700x stronger for vehicles.

The CEL-FI GO G41 Smart Signal Repeater is a powerful carrier-grade solution for overcoming cellular coverage issues in indoor environments.

Providing up to 100 dB gain, GO G41 offers class-leading 4GLTE voice and data performance.

In addition to providing cellular coverage up to 3,000m² when configured with the included donor and server antennas, the system can be expanded with outdoor or additional server antennas for an increased coverage footprint. 

The CEL-FI ROAM R41 mobile cellular coverage solution delivers reliable 3G, 4G, and 5G connectivity inside vehicles and boats. 

Launched in Australia in mid-2023, it runs on the 4th generation Nextivity Intelliboost chip which delivers channelised coverage for specific mobile network operator signals. 

The ROAM R41 offers enterprise-grade performance to solve poor coverage and enable dependable calling, texting, and streaming on the move. The system features plug-and-play operation for quick and easy set up, improving connectivity in any car, truck, RV, or boat within minutes. ROAM R41 also supports carrier switching through the Nextivity WAVE App for iOS and Android devices.

The CEL-FI Wideband Directional Antenna is an outdoor vertically polarised directional antenna; with 10dB gain in the low bands and 11dB gain in the high bands. The weather resistant housing is built with UV stabilised ABS plastic. Optimized for Cel‑Fi products, the CEL-FI Wideband Directional Antenna can be used with the CEL-FI WAVE Antenna positioning app. The unit includes standard brackets for mounting, and can also be used with the Cel‑Fi Pole Mount. A 10K ohm resistor is part of the antenna.

• Boosts Cell Signal by up to 11 dBi
• 700 – 2700 MHz Frequency
• Vertical Polarisation
• Uni-Directional

The CEL-FI LPDA-R Antenna offers a powerful 12 to 14 dBi gain (depending on carrier frequency) over 617–4000 MHz and is designed to reduce out of band noise, to improve SiNR and overall signal quality. Mounting is made simple with included U-Bolts. This CEL-FI product also features a 10K ohm resistor that enables the antenna connection to be validated by CEL-FI Network Units equipped with the capability.

• 12–14 dBi gain
• Narrow beam-width to reduce noise
• Rugged construction for harsh environments

The CEL-FI Indoor Omni Dome Antenna receives and transmits signal in a 360° pattern and are compatible with the 698 – 2700 MHz frequency ranges that include 3G and 4G signals. They come with either an N-type Female Connector.

• 3G/4G/LTE wideband cellular antenna
• N-type Female
• Omni-directional

The CEL-FI Wideband Panel Antenna is an indoor/outdoor cellular wideband directional antenna with 6 dB gain in the low bands and 10 dB gain in the high bands. The weather resistant housing is built with UV stabilized ABS plastic. Optimised for CEL-FI products, the CEL-FI Wideband Panel Antenna can be used with the CEL-FI WAVE Antenna positioning app. The unit includes standard L-bracket only.

Image shows MobileCorp deployment at Xylem warehouse, Kemps Creek.

• Boosts Cell Signal by up to 9 dBi
• 700 – 2700 MHz Frequency
• Vertical Polarisation
• Directional

Modern building materials such as steel, brick, concrete, and glass all interfere with the radio waves emitted by cell towers.

These materials refract and reflect the waves preventing the radio signal from penetrating indoors.

Low-emissivity (low-E) glass and LEED Green Building initiatives, also interfere with radio frequency (RF) signals. 

Being underground or in a building surrounded by other high rise buildings may also prove difficult to access a reliable signal, or even any signal. 

In point to point wireless transmission, it is important for the line of sight between the two points to be free of interference. Any obstruction in the LOS can result in a loss of signal.

The 3D elliptical region between the transmit antenna and the receive antenna is called the Fresnel Zone. The size of the ellipse is determined by the frequency of operation and the distance between the two sites.

Any object that impinges on the fresnel zone can disrupt radio frequency signals. This can include natural barriers like hills and trees, or man-made barriers like buildings. Even the weather - rain or wind - can disrupt the signal.

The further the distance from the cell tower to the receiving antenna,  the weaker the signal will be.

4GLTE will reliably broadcast over an area of 2-5km in an urban area and may reach well over 10km in a less congested rural setting. 5G,operating on a higher frequency with small cell technology, must be much closer to the target, ideally within a kilometre. 

Congestion on the tower is also a potential barrier. Each cell tower has a finite amount of bandwidth, processing power, and backhaul capacity. These resources are shared among the devices connected to the tower. When the number of connected devices or the amount of data being transmitted surpasses the available resources, congestion can occur. Congestion will cause slower data speeds, increased latency, and potentially dropped connections.