[aprssig] PL 100

Chris Rose kb8uih at sbcglobal.net
Sun Jul 18 13:22:54 EDT 2004

  To answer again about PL100, PL is set for a tone of 100 hz.


    ----- Original Message ----- 
    From: Chris Rose 
    To: TAPR APRS Mailing List 
    Sent: Sunday, July 18, 2004 12:39 PM
    Subject: Re: [aprssig] PL 100

      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.

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