• Ham Radio Glossary (P)

    From Daryl Stout@1:2320/33 to All on Sat Apr 22 00:04:24 2023
    From QRZ.Com, the Icom handout, and Part 97 Of The FCC Rules -
    Ham Radio Glossary - An overview of amateur radio terms.

    Power Amplifier

    A digital mode that sends "packets" of data between stations. Since it
    checks each packet received with what was sent, packet communications
    are error free...what is sent is what is received. This can mean the
    difference with traffic concerning 10 or 100 casualties. While there
    are not as many packet bulletin board systems (PBBS's) now, as compared
    to years ago, many hams still enjoy this mode of the hobby. It requires
    a rig, a TNC, and a computer. VHF Packet typically is at 1200 baud, while
    HF packet is at 300 baud.

    See Dualwatch.

    Short for "Morse Code Key", one that contains small paddles that are
    tapped in order to produce semi-automatic Morse Code (when connected to
    a "keyer").

    Part 97
    Portion of the FCC rules relating to amateur radio.

    Short for "Phone Patch".

    Pass Band Tuning. A function electronically reducing interference by
    narrowing IF bandwidth.

    "Peak Envelope Power"; used to measure power output of an single sideband signal. RF power at maximum amplitude.

    Phone Patch
    Device allowing audio from a telephone line to be placed in the audio
    circuits of a transmitter/receiver (thanks to WD5CTQ).

    For the purposes of the Part 97 Rules, a person who is licensed to practice
    in a place where the amateur service is regulated by the FCC, as either a Doctor of Medicine (MD) or a Doctor of Osteopathy (DO).

    P-N Junction
    A P-N junction (or N-P junction) is formed by creating two substrate
    materials of P type and N type on a semiconductor. P type means it is
    doped with "free holes" (electron depletion) and the N type is doped with electrons. Of course by physics, the free holes and free electrons would
    like to neutralize each other. A diode is formed with a P-N junction. Basically, when you have a NPN transistor, you have two junctions ... an NP junction between the collector and base, and a PN junction between the base
    and emitter. Vice-versa with a PNP transistor. How you bias those junctions controls how the transistor works.

    Pink Ticket
    FCC Notice of Rule Violation

    "Private Line", Motorola's trademarked name for CTCSS.

    Phase Locked Loop. Circuit to synthesize the different frequencies a
    radio will operate on.

    Phase Modulation or Pulse Modulation

    Pocket Beep
    Beeping function when a specific signal is received.

    See "P-N Junction".

    Priority Watch
    Reception mode, which by a selected frequency is always periodically
    checked when VFO is set to a different frequency.

    A digital mode which is rapidly growing in popularity; utilizes phase shift keying (PSK) which is transmitted at 31 baud (speed). For more information, please see http://www.psk31.org. While it does not have "error correction",
    it can detect signals below the noise floor, using such programs as
    DigiPan and MixW.

    "Push to Talk"; a button on a microphone or on the side of a handheld radio which activates the transmitter.

    --- SBBSecho 3.20-Win32
    * Origin: The Thunderbolt BBS - Little Rock, Arkansas (1:2320/33)