Hartley-Shannon can't be exceeded
The Hartley-Shannon equation gives the maximum possible data rate for a communications channel.
Any claim, exceeding the Shannon rule, with low error rates, should be treated with extreme caution, unless a full academic paper is available to justify the theory and to validate it.
It took 50 years to find the optimum coding to work efficiently on this type of channel.
The only way to increase the data capacity is to increase the bandwidth, the power, or reduce the channel noise.
Any claim, exceeding the Shannon rule, with low error rates, should be treated with extreme caution, unless a full academic paper is available to justify the theory and to validate it.
It took 50 years to find the optimum coding to work efficiently on this type of channel.
The only way to increase the data capacity is to increase the bandwidth, the power, or reduce the channel noise.