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link budget. At the same Eb/No, 16 QAM-OFDM has better BER performance than 16 APSK-OFDM by about 0.9 dB.For the uncompressed 4K UHDTV’s codec system, the “multi-channel video codec system” developed by NICT [11] was used. is codec is entirely soware-based, and is real-ized with ultra-high-speed, multi-channel parallel process-ing on a multi-core PC. e amount of information was made 4/9 (YUV611) using the method for thinning out chrominance components while leaving the pixel count as-is, yielding a transfer rate of about 2.65 Gbps. Four-channel video (4 high-denition images) were synchro-nously transmitted. With these achievements, we conrmed that UDP/IP transmission of uncompressed 4K UHDTV took place without packet loss. An example of a transmit-ted 4K UHDTV picture is shown in Fig. 11.4ConclusionWe achieved 3.2 Gbps satellite transmission. Anticipated applications include the eld of telemedicine, in which medical information can be accurately transmitted to specialist physicians in remote locations by large-scale in-vehicle earth stations.FiF10　16APSK/ 16QAM-OFDM BER curve (27 Dec. 2016)FiF11　Transmitted uncompressed 4K UHDTV picture (28 Nov. 2014)1153-5 16APSK/16QAM-OFDM 3.2 Gbps RF Signal Direct-Processing Transmitter and Receiver Transmission Experiments using WINDS Satellite