Upgrade of 450/550 MHz Cable Systems to 600 MHz Using a Phase Area Approach (1996)
By Robb Balsdon, Vice President, Engineering Services Rogers Engineering
This paper reviews the issues that Rogers considered when it decided to adopt a 600 MHz two-way upgrade strategy for its cable systems that were a combination of 450 MHz and 550 MHz plant (450/550 MHz). The costs of upgrading existing 450 MHz and 550 MHz amplifiers to 600 MHz are summarized. The main advantages and disadvantages of implementing a 600 MHz upgrade are discussed. A cost comparison of upgrading 450/550 MHz plant to 550 MHz, 600 MHz and 750 MHz fiber to the feeder (FTTF) is presented. Lastly, the phase area approach that Rogers is using to manage the 600 MHz upgrade of its plant and deploy new services on the upgraded plant is discussed.
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