The ARRL Ham Radio License Manual

Call CORRECT ANSWER (1) Abbreviated form of call sign. (2) Attempt to make contact. p10-4 Call District CORRECT ANSWER The ten administrative areas established by the FCC. p10-4 Call Sign CORRECT ANSWER The letters and numbers that identify a specific amateur and the country in which the license was granted. p10-4 Calling Frequency CORRECT ANSWER A frequency on which amateurs establish contact before moving to a different frequency. Usually used by hams with a common interest or activity. p10-4 Capacitance CORRECT ANSWER A measure of the ability to store energy in an electrical field. Capacitance is measured in farads. p10-4 Capacitor CORRECT ANSWER An electrical component that store energy in an electric field. Capacitors are made from a pair of conductive surfaces called electrodes that are separated by an insulator called the dielectric. p10-4 Carrier CORRECT ANSWER The unmodulated RF signal to which information is added during modulation. Also see modulate. p10-4