The term balun (pronounced bal-un) is derived from the function of the passive device that converts between a BAL anced and UNbalanced electrical signal. Common types of baluns convert 100 Ohm twisted pair (balanced) to 75 Ohm coaxial (unbalanced).
Commercial Driver License (Class A, B or C) A commercial driver license (CDL) is required for drivers of heavyweight vehicles, 26,001 lbs. or more gross vehicle weight rating (GVWR), vehicles hauling a trailer that is 10,001 lbs.
Commercial Driver License Classes: There are three classes of commercial licenses in Florida: Class A â Allows you to operate trucks or truck combinations weighing 26,001 lbs or more and tow a vehicle/unit over 10,000 lbs. Class B â Allows you to operate straight trucks and buses 26,001 lbs or more.