To improve the EHT?s sensitivity, resolution and imaging fidelity one might enhance station collecting area, add stations, or increase bandwidth. The latter improvement, bandwidth, is probably the most accessible. For many stations, including Submillimeter Array (SMA), the bandwidth is limited not by the receiver but by the digital signal processing. This talk will describe digital development at SMA. The upgraded SMA will contribute directly to the EHT, and technology under development has potential to benefit other EHT stations as well.