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    MODEL: HEV-1000

 


 8VSB MODULATOR HEV-1000

 

HEV-1000Àº ATSCÀÇ Ç¥ÁØ ±Ô°ÝÀ» ¸¸Á· ½ÃÅ°´Â µðÁöÅÐ ÀÜ·ù ÃøÆÄ´ë (Vestigial Side-Band)º¯Á¶±âÀÔ´Ï´Ù . ¶ÇÇÑ ÀÌ Á¦Ç°Àº 19.39Mbps ÀÇ Àü¼Û ½ÅÈ£(Transport Layer Signal)¸¦ ¹ÞÀ¸¸ç, À̸¦ ´Ù½Ã –15 dBm¿¡¼­ 0 dBmÀÇ Ãâ·Â ·¹º§À» °®´Â 8VSB RF½ÅÈ£·Î º¯Á¶ÇÏ¿© VHF /UHF·Î ¿øÇϴ ä³ÎÇüÅ·ΠÃâ·ÂÇÒ ¼ö ÀÖ½À´Ï´Ù.

 Àü¼Û½ÅÈ£(Transport Layer Signal)´Â µðÁöÅÐ Àü¼Û ¹æ½ÄÀÎ 8VSB ÇüÅ·Πº¯È¯ÇÏ¿© ºñµð¿À ¹× ¿Àµð¿À, µ¥ÀÌÅÍÁ¤º¸¸¦ Àü¼ÛÇÕ´Ï´Ù. HEV-1000Àº Randomization, Reed-Solomon, ¿£ÄÚµù, Convolutional interleaving, °ÝÀÚ ÄÚµù ±×¸®°í Pilot – Insertion À» ÅëÇØ ¿¡·¯ Á¤Á¤ µðÁöÅÐ º¯Á¶¸¦ ½ÇÇàÇÕ´Ï´Ù. ÀÌ·¯ÇÑ °á°úÄ¡·Î µðÁöÅÐ ÅÚ·¹ºñÀüÀÇ ÀáÀç·ÂÀ» ÃÖ´ëÇÑ È°¿ëÇÒ ¼ö ÀÖ´Â ¼öÁØÀÇ ½Å·Ú¼º°ú ¼º´ÉÀ» °®°Ô µÉ °ÍÀÔ´Ï´Ù.

 

 


¤ý Data input : ASI, LVDS(option), SMPTE310M(option), Ramp
¤ý Data output : RF
¤ý IF output (option) : 44 MHz
¤ý RF output : -15 ~ 0dBm
¤ý Output RF freq. : 54 ~ 860 MHz
¤ý Data rate : 19.392 Mbps
¤ý RF freq. offset : 125 kHz
¤ý RF level control : Digital adjusted
¤ý Power output accuracy : +, - 1dBm
¤ý Power adjustment : 30 dB
¤ý RF level step size : 1 dB