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There is really only one time that said length would be of use, and that requires a device which I doubt you, as someone who is "kinda new", has.  Don't worry about it.  As I said above, your radio/amplifier won't notice any difference, and for that matter neither will your SWR meter.  If they do then you have other problems you need to deal with.


With many things in CB radio, something that has a minor effect, and in some cases only affects a very limited number of situations, gets blown out of proportion.  This length of coax myth is but one of them.  It comes from people who see differences with different lengths of coax, but don't understand why they see these differences, or the problems that actually cause them.  They also notice that when such problems that they are unaware of exist, that some seemingly magical lengths of coax seem to make the problem go away, when in reality it only hides the problem, not fixes it.  A hidden problem is still a problem.


There is a lot of this in the radio hobby.  Unfortunately it is something that we all have to sift our way through at some point.



The DB