• Ham Radio Glossary (T)

    From Daryl Stout@618:250/33 to All on Fri Sep 4 00:05:33 2020
    From QRZ.Com, the Icom handout, and Part 97 Of The FCC Rules -
    Ham Radio Glossary - An overview of amateur radio terms.

    Same as "Simplex".

    A frequency for use at hamfests or other events, to direct those coming
    from out of the area to the exact location of the event.

    Temperature Compensated Crystal Oscillator. Heated crystal oscillator
    for better frequency stability.

    The current entry level of U.S. Amateur Radio license, it allows all
    amateur radio privilges above 50 Mhz, plus limited CW privileges on
    80, 40 and 15 meters...plus CW, RTTY, and data (PSK31, etc.) privileges
    from 28.0 to 28.3 Mhz...and SSB Phone from 28.3 to 28.5 Mhz on 10 meters. Technician Class licensees also can use the VoIP (Voice Over Internet
    Protocol) modes of Echolink (www.echolink.org) and IRLP (www.irlp.net).

    Technician Plus
    "Technician Plus" licensees were originally Technician Class licensees
    who had passed the 5 words per minute Morse Code exam requirement.
    However, as of Feb. 23, 2007, the Morse Code exam requirement was removed,
    with "Technician Plus" licensees now having the same privileges as
    Technician Class licensees. This term is no longer used as an official
    class of U.S. amateur radio license. See also "Technician".

    A one-way transmission to initiate, modify, or terminate functions of a
    device at a distance.

    Telecommand station
    An amateur station that transmits communications to initiate, modify, or terminate functions of a space station.

    A one-way transmission of measurements at a distance from the measuring instrument.

    Terminal Node Controller

    1. A "modem" for amateur radio, which is used for "packet" and "APRS".
    Also known as a TNC.

    2. A type of antenna connector.

    Third-party communications
    A message from the control operator (first party) of an amateur station to another amateur station control operator (second party) on behalf of
    another person (third party).

    Third party traffic
    Where someone who is not currently an amateur radio licensee, may operate, under the supervision of an amateur radio licensee. The amateur radio
    licensee must immediately terminate communications, should a FCC rules violation occur. Prior amateur radio service licensees whose licenses
    have been suspended, revoked, surrendered for cancellation, or are the
    subject of a "cease and desist" order may NOT operate as "third party

    Slang for "FCC License".

    Time Out Timer
    Time limiting function for continued repeater, or other operations.
    By FCC Rules, most repeaters will "shut down" after 3 minutes of
    continuous transmit, to avoid burning out the components in the
    repeater. Continuous usage may also prevent a station with a
    legitimate emergency situation from transmitting their distress call.

    See "Terminal Node Controller".

    See Time Out Timer.

    See "P-N Junction".

    Tuning Step. Incremental steps of changing frequency (5 khz, 10 khz, etc.).

    Tone Squench
    Squelch function using sub-audible tones, selective call.

    Television Interference.

    Abbreviation for "transmitter" or "transmit"
    --- SBBSecho 3.11-Win32
    * Origin: The Thunderbolt BBS - tbolt.synchro.net (618:250/33)