The 'RX Mix' knob acts as a 'balance' control between the Main and Sub receivers. The receiver features 8-pole filters in the 2nd IF of 2.4 kHz, 2.0 kHz, 500 Hz, and 250Hz, cascaded with 2.4 kHz, 2.0 kHz, and 500 Hz in the 3rd IF. Two front-ends, IF strips and VFOs allow simultaneous reception of two different frequencies, even in different modes and with different IF bandwidths. 'The Best of the Best' in Yaesu approach to the application of the digital and RF technologies.