Thought Leadership by Teresa Huysamen, Wireless Business Unit Manager, Duxbury Networking
South Africa’s wireless industry now has a clearer view of the next phase of spectrum allocation. However, operators cannot treat the innovation spectrum bands as immediately available for deployment.
Icasa has gazetted final regulations, although these are not yet in force, covering dynamic spectrum access and opportunistic spectrum management in the 3800 to 4200MHz and 5925 to 6425MHz ranges. The next phase depends on the detailed operational framework, authorisation process, and spectrum switch system that will manage access and protect incumbent users.
For wireless internet service providers (WISPs), private network operators, community networks, and the broader connectivity market, this is the moment to move from watching to planning. Successful deployment will depend on how well operators prepare for the technical, regulatory, and operational requirements that follow.
That planning needs to start now. Spectrum on its own does not build better networks. It needs the right equipment, the right topology, the right use case, and a clear understanding of where each band is best suited. The important shift is that different spectrum options can now be matched to specific connectivity needs, rather than being treated as a single broad answer to every network challenge.
The 6GHz opportunity is larger than it looks
The lower 6GHz band is important because it could deliver a step change in the amount of cleaner spectrum available to WISPs once the framework is operational. Many WISPs today still rely heavily on congested 5.8GHz unlicensed spectrum. The designated lower 6GHz range is substantially wider and, critically, far cleaner. That translates directly into the ability to support higher-throughput links, reduce interference-related constraints, and create a stronger platform for Wi-Fi 6E and Wi-Fi 7 deployments.
In the right deployment conditions, this could allow fixed wireless access to compete more credibly with fibre on throughput, deployment speed, and cost in areas where fibre infrastructure is slow or economically unviable. Wireless should not automatically be treated as a fallback. In many South African environments, a well-planned 6GHz fixed wireless network could become the better answer.
Access to the lower 6GHz band is expected to be managed through a dynamic spectrum management system, using a geolocation database to assign operational parameters and protect primary spectrum users, such as satellite earth stations and fixed-link operators. This is what will make licence-exempt access to clean spectrum sustainable at scale. WISPs planning for this band need to ensure their equipment choices and site processes are compatible with this access regime from the outset.
Demand is changing, and the 3.8 to 4.2GHz band has a role to play
The 3.8 to 4.2GHz band is designed to address the most demanding connectivity requirements. Because it is licensed, it is ideally suited to controlled wireless environments where predictability and performance assurance are central to the business case. This makes it a strong option for standalone 5G deployments in open-pit mining, industrial operations, agricultural sites, logistics facilities, university campuses, and smart estates. In these environments, a best‑effort network is not acceptable, and the economics of a managed, licensed deployment justify the investment.
The regulations have been structured to make this accessible. The licensing approach is discounted and explicitly designed for non-dominant operators, SMMEs and community network providers. Rural operators receive a larger channel allocation than urban ones. A cap on contiguous coverage cells prevents larger players from locking out smaller ones.
Two bands, two distinct roles
The important point, and the one that should drive every planning conversation, is that these bands are not interchangeable.
The 6GHz band is the right choice where the priority is high-capacity, licence-exempt wireless growth: fixed wireless access, backhaul, last-mile broadband and modern Wi-Fi ecosystems. The 3.8 to 4.2GHz band is the right choice where the priority is a managed, licensed environment: private 5G, industrial connectivity, mission-critical systems and any use case where performance cannot be left to chance.
Treating them as two versions of the same thing leads to poor network design. Better results come from matching each band to the use cases it is best suited to support.
A more flexible toolkit
For WISPs, the combined availability of these bands creates a genuinely more flexible set of options for serving customers.
One customer may need a better fixed wireless access service in an underserved community. Another may need a private network for a warehouse, estate, school or farm. A third may be running operational systems, such as safety monitoring, automated equipment, and IoT platforms, that cannot rely on best-effort connectivity. For each of these, there is now a more appropriate spectrum option and a clearer technical path to deploying it well.
That flexibility only works if operators plan around it deliberately. Operators should now be asking where current networks are constrained by interference, which customers need higher capacity, which sites are candidates for private wireless, and whether equipment roadmaps, backhaul links, installer skills, and support teams are ready for the new bands.
A real moment for digital inclusion
South Africa still has many areas where fibre deployment is difficult, expensive, or slow, and WISPs have long helped close those gaps. Better spectrum options can make that work more effective by giving operators greater capacity, reliability, and room to build networks that last.
The economic case for getting this right is substantial. Industry research has linked broader 6GHz access to significant economic upside for South Africa. The regulations gazetted by Icasa represent the first significant tranche of that opportunity.
Wireless will not replace fibre in every environment, and it should not try to. In the right conditions, a well-designed wireless network can compete on service quality, reach areas fibre cannot, and deploy faster in places where fibre rollout remains difficult.
The next wireless phase will reward operators that plan carefully, choose technology deliberately, and match spectrum to real customer needs. More spectrum is helpful. Better spectrum planning is what will make the difference.
