The WiMax 3.5 GHz frequency spread allocation has been implemented in some countries to allow business users to have reliable connections with superior data transfer throughput. This is ideal for mobile and high speed broadband which is normally deployed on most business enterprises.
However, most chipsets manufactured by hardware developers can only support WiMax capability at 2.5 GHz. Laptops that have been configured to support WiMax connectivity are locked on the 2.5 GHz frequency. Other frequency profiles such as the 2.3 GHz and 3.5GHz frequencies are optional features. End-users need to request this profile in order to achieve interoperability with other frequency profiles.
Current demands however for greater capability for seamless interoperability at different frequency spreads push manufacturers to develop multiple function chipsets. The development multiple frequency profiles will allow end user to make a connection wherever they are. This makes WiMax technology more flexible as different equipments can easily shift frequency allocations in order to establish connections.
The WiMax Forum only supports three interoperability testing spreads for frequency allocations. The widely used allocation is the 2.5 GHz frequency spread especially in the US and the northern hemisphere. In other parts of the globe, the 2.3 GHz and 3.5GHz frequency allocations are already in use. That is why hardware manufacturers need to create chipsets that can support other frequency profiles to get a share of the international market.
Interoperability on different frequency spreads would be very productive especially for end-users that utilize WiMax connections for business. Wherever they are on the globe, they can easily find frequency allocation for their mobile broadband.