Connecting the Future of Sustainable Aquaculture

Connecting the Future of Sustainable Aquaculture

Tammy van Graan

Product Integrated
WilsonPro A1000
Industry Type
Agriculture
Building Size: N/A

Transforming a Communications Dead Zone into a Smart Farm

A South African land-based salmon farming operation focused on producing premium, sustainably farmed salmon using controlled aquaculture environments. Unlike open-water farming, the facility relies on recirculating aquaculture systems (RAS) where water conditions, fish health, and feeding are carefully managed through continuous monitoring and automation. This technology-driven approach allows the farm to optimise growth rates, maintain consistent product quality, and reduce environmental impact — but it also means daily operations depend heavily on reliable data connectivity for environmental sensors, operational systems, and staff coordination.

Land Based Salmon Farm in South Africa

The Problem

The facility operates as a fully monitored aquaculture environment where thousands of fish depend on stable and precisely controlled conditions. Every tank relies on real-time monitoring systems transmitting live data to farm managers, including:

  • Egg incubation temperature and hatch timing
  • Dissolved oxygen levels (critical for fish survival)
  • Water temperature stability
  • Ammonia and pH toxicity levels
  • Pump, filtration and aerator operation status
  • Automated feeding activity
  • Remote camera monitoring of fish behaviour
  • Staff safety and operational communications

This telemetry must continuously reach mobile devices. If connectivity drops, the farm effectively loses visibility into fish health and system performance.

However, the site is located in a remote valley with no natural cellular coverage.

As a result, the farm experienced:

  • Gaps in environmental monitoring data
  • Delayed response to water quality changes
  • Manual inspections replacing automated alerts
  • Inability to remotely verify feeding and filtration systems
  • Poor coordination between staff across production areas

Without reliable connectivity, the operation faced risks to fish welfare, production stability, and regulatory compliance.

The Technical Problem

Our pre-installation analysis confirmed the severity of the issue: there was no usable cellular signal anywhere on the property — inside or outside the buildings. The site has no line of sight to any cellular tower, leaving only a weak reflected signal originating approximately 1.8 km away and fluctuating with environmental conditions.

This created critical operational limitations:

  • No voice calling capability for staff
  • Isolation from suppliers, logistics partners and head office
  • Safety risks due to lack of emergency communication

To restore operations, a conventional booster installation was not sufficient — the site required a dedicated signal relay infrastructure to bring cellular connectivity into the valley.

Relay Circuit Design

Solution

To overcome the remote location and challenging terrain, our team of signal experts designed a two-stage cellular solution to bring reliable connectivity to the farm.

Stage 1: Mountain Relay Installation

We identified a strategic site on top of the nearby mountain with a direct line of sight to the cellular towers along the N1 highway. At this location, we installed a dedicated relay system to capture and transmit the distant signal:

  • Long Ranger directional antenna – captures weak signals from the distant towers
  • A1000 Amplifier – boosts the captured signal for reliable transmission
  • Sector Antenna – redirects the amplified signal toward the farm 1.8 km below

This setup created a dedicated relay station that overcomes the distance and reflective signal limitations, ensuring a stable signal could reach the farm premises.

Stage 2: Farm Distribution

Once the signal arrived at the farm, we needed to distribute it indoors and across key operational areas. To achieve this, we implemented:

  • Long Ranger directional antenna – receives the boosted signal from the mountain relay
  • Two A1000 Amplifiers – further strengthen the signal for farm use
  • Two Yagi antennas & one Panel antenna – distribute the signal to targeted offices and operational spaces

Due to the reflective signal path and terrain, coverage is optimised for specific areas. Similar to a cell tower, signal strength is strongest near the antennas, providing reliable connectivity where it is needed most.

post installation readings inside the offices

The Result

From a complete communications dead zone, we successfully transformed the farm's into a connected, monitored, and operationally efficient facility.

Signal Improvements

Before installation, there was no usable signal inside the farm offices, and measurements at the mountain site revealed extremely weak connectivity:

Mountain readings:

  • 2G band: Vodacom –107 dBm, MTN –104 dBm
  • 4G LTE band: Vodacom –85 dBm, MTN –91 dBm

After the mountain relay and on-site distribution solution were installed, signal within the offices became stable and usable:

Office readings after installation:

  • 2G band: Vodacom –103 dBm
  • 4G LTE band: Vodacom –78 dBm, MTN –87 dBm

These improvements also enhanced data speeds for environmental monitoring systems and staff communications. However, as with all cell signal boosters, we cannot guarantee specific speeds or completely stabilise the connection, since performance depends on distant towers, signal reflection, and network load.

Operational Impact

With consistent connectivity, the farm’s automated monitoring and management systems now operate effectively:

  • Voice communication: Staff can make and receive calls within 2–3 metres of indoor antennas, improving coordination and safety.
  • Data transmission: Environmental sensor data reliably reaches dashboards within 5–10 metres, enabling real-time tracking of water temperature, dissolved oxygen, pH, ammonia, and egg incubation conditions.
  • Remote monitoring: Managers can verify automated feeding, filtration, and pump systems without being on-site, reducing manual inspections and operational delays.
  • Scalability: The system provides a foundation for future expansion, with the option to add additional amplifiers or antennas to cover more areas.

This project highlights our expertise in delivering reliable cellular solutions in remote and challenging South African terrains, enabling modern, data-driven aquaculture operations where no line of sight to towers exists and isolation would otherwise hinder productivity, safety, and compliance.

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