The latest DSP technologies developed for the IC-7800/7700 plus over 45 years of analog circuit expertise give the IC-7600 the performance advantage. The flagship's lineage: dual DSP units, 3kHz 1st (roofing) filter, double-conversion superheterodyne, all direct descendents of the IC-7800/7700. ?Dual DSP: Separate DSP units for transmitter/receiver and spectrum scope. ?Ist IF Filter: Three built-in 1st IF (roofing) filters – 3, 6 and 15 kHz. ?Receiver System: The double-conversion superheterodyne system and the image rejection mixer improve inband IMD. ?Display: 5.8-inch WQVGA (400×240 pixels)ultra-wide viewing angle TFT display with long-life LED backlighting. ?Spectrum Scope: High-resolution real-time spectrum scope using a dedicated DSP unit. ?USB Connectors: Easily connect keyboards, flash memory drives and PCs. ?PSK Operation: Built-in PSK and RTTY operation with a USB keyboard – PC not required.