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Understanding how CB radio works
This is carried over from this thread.
http://www.cbtricks.com/forum/index.php?topic=7692.0 If any are interested I like to start a thread on understanding how CB radios work. I have picked up some free time now and it may be something to help those that want to learn. There are a lot of folks here full of technical knowledge and I think this would be a good tread to help others that want to know learn and understand what is going on in these little set’s. I see so many folks trying to troubleshoot radios and do not even know where on the board to find the problem let alone on the schematic. What I like to do is start with a chassis like the cobra 29. Post a schematic with the various stages marked. Post a description of components and what they are. For instance; TR 1 (RF AMP), IC 3 (TX MIXER) Ecx. Just to give the guys that want to learn a bit of a heads up. Then in the end discuss how to make your own test equipment like using the 29 as a signal generator I have uploaded the modified schematic. This is not my work. It was given to me and I updated it.
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