Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site pur-ee.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!ihnp4!inuxc!pur-ee!ecn-ee!wn9nbt From: wn9nbt@ecn-ee.UUCP Newsgroups: net.ham-radio Subject: Re: CTCSS, DTMF, and PL tones?? Message-ID: <2254@pur-ee.UUCP> Date: Thu, 18-Oct-84 03:23:47 EDT Article-I.D.: pur-ee.2254 Posted: Thu Oct 18 03:23:47 1984 Date-Received: Sun, 21-Oct-84 09:23:08 EDT Sender: notes@pur-ee.UUCP Organization: Electrical Engineering Department , Purdue University Lines: 14 Nf-ID: #R:sask:-12200:ecn-ee:14900009:000:332 Nf-From: ecn-ee!wn9nbt Oct 17 10:14:00 1984 CTCSS - Continous Tone Coded Squelch System DTMF - Dual Tone Multiple Frequency (touch tones, telephone-like) PL - Private Line (Motorola's name for CTCSS) Note - CTCSS for General Electric is called "CG" or Channel Guard and RCA calls it "QC" or Quiet Channel. All the same thing. .....Dave Chasey -- wn9nbt