• Ham Radio Glossary (C)

    From Daryl Stout@618:250/33 to All on Tue Oct 13 00:07:30 2020
    From QRZ.Com, the Icom handout, and Part 97 Of The FCC Rules -
    Ham Radio Glossary - An overview of amateur radio terms.

    Call Guard
    Trademark term by General Electric for sub-audible tone. See CTCSS.

    Sequence of leter and numbers used to identify amateur radio operators,
    and issued by the FCC.

    Call sign system
    The method used to select a call sign for amateur station over-the-air identification purposes. The call sign systems are:

    (i) Sequential call sign system. The call sign is selected by the FCC
    from an alphabetized list corresponding to the geographic region of the licensee's mailing address and operator class. The call sign is shown
    on the license. The FCC will issue public announcements detailing the procedures of the sequential call sign system.

    (ii) Vanity call sign system. The call sign is selected by the FCC
    from a list of call signs requested by the licensee. The call sign
    is shown on the license. The FCC will issue public announcements
    detailing the procedures of the vanity call sign system.

    (iii) Special event call sign system. The call sign is selected by
    the station licensee from a list of call signs shown on a common
    data base coordinated, maintained and disseminated by the amateur
    station special event call sign data base coordinators. The call
    sign must have the single letter prefix K, N or W, followed by a
    single numeral through 9, followed by a single letter A through W
    or Y or Z (for example K1A). The special event call sign is
    substituted for the call sign shown on the station license grant
    while the station is transmitting. The FCC will issue public
    announcements detailing the procedures of the special event call
    sign system.

    Civil Air Patrol. Volunteer affiliate of the United States Air Force.

    An unmodulated transmitted signal.

    Carrier frequency offset
    Distance between mark and space of the carrier for RTTY or similar communications. Also known as carrier shift.

    Channel Guard
    General Electric's trademarked name for CTCSS. (RCA called it Quiet
    Channel, or QC)

    Call Book Address

    Cross Band Repeater. A repeater which receives an incoming signal, and retransmits it in different bands; such as receiving a signal on the 2
    meter band, and re-transmits it on the 70 centimeter band.

    "Covenents, Conditions, and Restrictions"; an extensive set of rules
    drawn up by homeowner's associations and their lawyers which, among
    other things, typically restrict or completely prohibit a homeowner
    from having most forms of antennas on his/her property. Such
    regulations are formed and placed upon the property before the home is initially sold, and typically remains in effect for the life of the home.

    Counter clockwise

    See Call Guard.

    Channel. Sequence of memory positions where frequency and related
    information is stored.

    Icom computer control interface allows multiple radio control

    Coaxial cable; RF transmission line; used to connect an antenna to a
    radio; "coaxial" indicates that the conductors are about the same axis,
    with a center conductor being on that axis, and the "shield" wrapped
    around the axis (dielectric separates the center conductor and the shield wires).

    Number of IF circuits in the receiver.

    Central Processing Unit. Determines the speed of how fast the computer operates.

    Radio communications term used to call other stations (Seek You).

    "Continuous Tone-Coded Squelch System", also known as "PL" ("Private Line", trademarked term by Motorola), "Call Guard" (trademarked by GE), or
    "subaudible tone". A means of transmitting a tone along with your signal.
    This tone tells a receiver to open up its squelch so that the signal is received. This method is commonly used with repeaters.


    1. "Continuous Wave"; popular digital mode on HF which utilizes Morse Code; regarded by many as the *first* digital mode.

    2. Clockwise

    CW filter
    Used to narrow IF passband to improve reception in crowded band

    Control operator
    An amateur operator designated by the licensee of a station to be
    responsible for the transmissions from that station to assure compliance
    with the FCC Rules.

    Control point
    The location at which the control operator function is performed.

    Certificate of successful completion of examination. Issued to an
    examinee for an amateur radio license, showing that they passed
    a specific examination element required for that particular class of
    amateur radio license. They are valid for a 365 day period from
    initial issuance toward upgrading to a higher class license. For
    example, if one passes an exam on July 1, it expires at 12 midnight
    the following June 30. However, during a leap year, the expiration
    day is one day EARLIER.

    Radio-amateur license. A license issued by a country belonging to the
    European Conference of Postal and Telecommunications Administrations
    (CEPT) that has adopted Recommendation T/R 61-01 (Nice 1985, revised in
    Paris 1992, Nicosia 2003).
    --- SBBSecho 3.11-Win32
    * Origin: The Thunderbolt BBS - tbolt.synchro.net (618:250/33)