Impulse 400D is a powerful and cost-effective 4K UHD receiver decoder/gateway that supports MPEG-2/H.264/H.265/AVS+/AVS2 UHD/HD/SD video decoding and major audio decoding.   With ample tuner input options and multiple input/output interfaces, it can achieve the RF signal reception, program descrambling, multiplexing, downscaling and decoding output.   With IP-based stream processing and management interfaces, it is ideal to support advanced content distribution, 4K decoding, content remultiplexing, digital signal turnaround and transmission via an all-IP-headend system.