[aprssig] PL 100

Chris Rose kb8uih at sbcglobal.net
Sun Jul 18 12:39:03 EDT 2004

  PL is encoding a tone or tone squelch or CTS or CTCSS on some radios.  Check your instruction manual for info on Tones or PLs and it may clear up some confusion.  When a PL is used on a repeater or on simplex to close its/your squelch, a transmitter must transmit to you the correct tone to open your squelch to allow you to listen to that transmission.  Same for you to open another hams/repeater's squelch control if they have their receiver set for Tone Squelch mode.  You need to transmit a tone to open their receiver.


    ----- Original Message ----- 
    From: Rodney Padmore 
    To: TAPR APRS Special Interest Group 
    Sent: Sunday, July 18, 2004 12:33 PM
    Subject: [aprssig] PL 100

    Could someone please tell me what this means, especially the "PL" as referred to by Bob B.'s development of Voice Alert. Sorry if the answer is in plain sight but I just can't find it in the manuals. Tnx, 73 de Rod,VE1BSK.


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