Kenya has launched its first live public trial of digital sound broadcasting in Nairobi, marking a significant step toward modernizing its crowded radio market.
The 12-month pilot, led by the Communications Authority of Kenya, comes as the country’s FM band, ranging from 87.5 to 108.0 MHz, reaches near saturation in major urban areas. With each station occupying a fixed 200 kHz channel, limited spectrum availability has constrained the entry of new broadcasters.
Digital radio offers a different model. Using DAB+ technology on VHF Band III (174–230 MHz), multiple stations can be transmitted within a single frequency block, known as a multiplex. The current Nairobi trial carries 14 radio services on one network operated by Mast Rental.
This shift allows several broadcasters to share the same bandwidth, effectively turning spectrum into a shared resource rather than a fixed allocation. For regulators, it presents a way to ease congestion without expanding available frequencies.
Beyond spectrum efficiency, the transition could reshape broadcasting economics. Traditional FM stations must maintain individual transmission infrastructure, including towers, power supply, and technical staff—costs that can be prohibitive, particularly for smaller or regional operators.
Under the digital model, transmission is centralized, with multiplex operators managing infrastructure and leasing capacity to stations. While this could lower operating costs, industry observers note that pricing structures will be critical. High access fees could limit participation, especially for community broadcasters.
The regulator has indicated that some capacity may be reserved for smaller stations at reduced rates, though details remain unclear.
For listeners, digital radio promises clearer sound quality, reduced interference, and easier navigation through station names rather than frequencies. Unlike internet streaming, DAB+ services use terrestrial signals and do not require mobile data.
Kenya has not announced a timeline for phasing out analogue FM, meaning both systems are expected to operate in parallel for the foreseeable future. This could create a mixed listening environment, with access to digital services dependent on receiver availability.
The pilot forms part of a broader review of spectrum use in Kenya’s telecommunications sector, aimed at improving efficiency and supporting market growth. With more than 300 licensed radio stations reaching the vast majority of households, the move to digital broadcasting could open space for new, niche, and community-focused services.
However, the transition also raises concerns about infrastructure control and equitable access, as the industry weighs the benefits of efficiency against the risks of centralization.