è¦ç´ ã±ã¼ãã«ãã¬ãã·ã¹ãã ã¯ã75Ωã¤ã³ã¿ãã§ã¼ã¹ãç¨ãã¦ãã¾ãããã»ã¨ãã©ã®RFãã¹ãæ©å¨ã¯ã50Ωã®ã¤ã³ãã¼ãã³ã¹ã§ããããã§ã¯ã2ã¤ã®ç°å¢ã«ãããé»åã¬ãã«ã¨é»å§ã¬ãã«éã§å¿ è¦ãªå¤æã«ã¤ãã¦èª¬æãã¾ããã¾ããé©åãªå¤æä¿æ°ãç°¡åã«èª¿ã¹ããã¨ãã§ããããã«2ã¤ã®è¡¨ãæä¾ãã¦ãã¾ãã ã¯ããã« CATVåè·¯ã¯75Ωç°å¢ã§åä½ãã¾ããæ¨æºçãªãã¹ãè¨æ¸¬å¨ãè£ åããRFå®é¨å®¤ã®ã»ã¨ãã©ã¯ãã¤ã³ã¿ãã§ã¼ã¹ã®æ¨æºã¤ã³ãã¼ãã³ã¹ã¨ãã¦50Ωãæ¡ç¨ãã¦ãã¾ãã ãã®ã¢ããªã±ã¼ã·ã§ã³ãã¼ãã§ã¯ä»¥ä¸ã®ããã«è¨è¼ããã¾ãã dBmV = 46.9897 + dBm50Ω dBmV = 48.7506 + dBm75Ω dBµV = 60 + dBmV dBµV = 106.98 + dBm50Ω dBµV = 108.75 + dBm75Ω dBmVã¨dBµV CATVã®ã»ã¨ãã©ã®æ¸¬å®ã¯é»å§ãåºæºã¨ãã¦
{{#tags}}- {{label}}
{{/tags}}