he UHD-3901-UC features broadcast quality up converts with high-quality scaler, motion adaptive de-interlacer and colour space conversion from ITU-R BT.709 to ITU-R BT. 2020. Frame buffer is provided to keep 4K UHD outputs aligned with respect to a reference signal. The 4K UHD signals generated are output on quad link 3G SDI as per SMPTE ST-425-5 and supports two sample interleave (2SI) and square division quad split (SDQS) outputs, which are user selectable. The HD/3G embedded audio and metadata are delayed accordingly to keep synchronisation with video before re-embedding in the first 3G link.