Direct modulation will lead to high laser chirp (Laser’s bias current is modulated by signal and the optical spectrum FM’s). Laser chip will interact with dispersion effect caused by standard single mode fiber (SMF-28), which will generate serious CSO distortion . This distortion will become more serious with the increase of transmission distance, bandwidth and channel number.
Today we can maintain acceptable signal quality while transmitting an analog and digital full channel signal with transmission distance≤15Km or transmitting digital load with transmission distance≤40Km.
4Cable TV International/Setting the record straight
4Cable TV Inc is NOT associated with 4Cable TV International, Inc. As outlined in the March 24, 2016 News release dated March 16, 2016 , the founders of 4Cable TV Inc, as of March 10, 2016 relinquish control of 4Cable TV International to a private investment group in Pt. St. Lucie, Florida and regained control of 4Cable TV Inc which is now a Private Company. At the time of the transaction there were approximately 1.7 Billion shares outstanding and 5 Billion shares authorized and all of the convertible debt stayed with 4Cable TV International, Inc. . The only information that the present management of 4Cable TV Inc, has is that 4Cable TV International, Inc. has moved the domicile of the corporation to Florida and changed its name to WORLDWIDE ENTERTAINMENT HOLDINGS CORP. (Search for 4Cable TV International, Inc on the Florida Secretary of State Website . Other than that, the Management of 4Cable TV Inc. has no information, on the operation, plans or intentions of 4Cable TV International Inc and all inquires should be directed to Jeff Wildermuth CEO, 4Cable TV International AKA Worldwide Entertainment Holdings, Corp., 1391 St Lucie West Blvd, Suite 244, Port St Lucie, FL 34986, firstname.lastname@example.org. POWERMISER
4Cable TV’s revolutionary PowerMiserTM amplifier line reduces the power requirements for most amplifier types by 50% or more.
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Thousands of Successful Upgrades
The two Founders of 4 Cable TV have over 90 years of combined experience in Cable TV. Between the two of them they have built thousands of miles of plant and have engineered and overseen thousands of successful amplifier module upgrades.