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Cb Pll Data Book Pdf


The CB PLL Data Book: A Comprehensive Guide to CB Radio Frequency Synthesis


If you are interested in learning how to modify, repair, or upgrade your CB radio, you need to have a good understanding of how the PLL (phase-locked loop) circuit works. The PLL is the heart of the CB radio, controlling the frequency and channel selection. Without the PLL, your CB radio would be stuck on one frequency.


The CB PLL Data Book by Lou Franklin is a valuable resource for anyone who wants to master the PLL circuit. This book covers over 100 different PLL chips and circuits used in various CB radios from the 1970s to the 1990s. It provides detailed information on pinouts, functions, specifications, wiring diagrams, modifications, and troubleshooting tips for each PLL chip and circuit. It also explains the theory and principles of PLL operation, frequency synthesis, frequency mixing, crystal oscillators, binary counters, dividers, and more.


The CB PLL Data Book is available in PDF format for easy download and printing. You can get your copy from Google Books [^1^]. Whether you are a hobbyist, technician, or engineer, this book will help you unlock the secrets of the CB radio PLL circuit.


CB radio has a long and fascinating history that dates back to the 1940s, when the Federal Communications Commission (FCC) created the Citizens Radio Service for regulating remote-control units and mobile radiotelephones [^2^]. The inventor of CB radio was Al Gross, who also invented the walkie-talkie and founded the Citizens Radio Corporation [^3^]. He designed the first CB radios for operation on the 460â470 MHz UHF band, but they were too expensive and bulky for widespread use.


In 1958, the FCC made CB radio a special class of the service and allocated 23 channels in the 27 MHz (11 m) band for personal and business communication [^2^]. The lower frequency band allowed for smaller and cheaper radios that could be installed in vehicles or homes. CB radio became popular among truck drivers, hobbyists, and rural residents who needed a reliable and affordable way to communicate. CB radio also developed its own culture and jargon, with users adopting unique nicknames (called \"handles\") and codes (such as \"10-4\" for \"OK\") to identify themselves and convey messages.


In the 1970s, CB radio experienced a boom in popularity due to several factors, such as the oil crisis, the speed limit reduction, and the influence of movies and music that featured CB radio. Many people used CB radio to monitor traffic conditions, avoid speed traps, coordinate carpooling, or just chat with other users. The demand for CB radios exceeded the supply, and some models sold for hundreds of dollars. The FCC relaxed some of the regulations on CB radio, such as eliminating the license requirement and adding 17 more channels to the band [^2^]. However, this also led to increased interference, congestion, and misuse of the service.


In the 1980s, CB radio declined in popularity due to several factors, such as the introduction of cellular phones, the enforcement of FCC rules, and the emergence of other personal radio services. CB radio still has its loyal users and fans, especially among truckers, travelers, and hobbyists who enjoy tinkering with their radios and antennas. CB radio also has some advantages over other communication methods, such as being free of charge, independent of infrastructure, and accessible to anyone with a radio. ec8f644aee






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