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From: ron@brl-tgr.ARPA (Ron Natalie )
Newsgroups: net.ham-radio
Subject: Re: "PL"
Message-ID: <11381@brl-tgr.ARPA>
Date: Thu, 4-Jul-85 20:36:21 EDT
Article-I.D.: brl-tgr.11381
Posted: Thu Jul  4 20:36:21 1985
Date-Received: Thu, 11-Jul-85 05:40:42 EDT
References: <86@biomed.UUCP>
Organization: Ballistic Research Lab
Lines: 18

> Next question:  Why does store bought 2m ham gear usually try to sell itself
> with a PL tone encoder ONLY?  It seems that all of the commercial radios
> like in the previous question (even the walkie-talkies) have BOTH an encoder
> and a decoder. 

While their are some repeaters around here that have PL to keep out the
"riff-raff," the only repeater that I generally use installed PL to stop
interfering signals from unintentionally bringing up the repeater.  This
can either be due to another repeater on the same frequency, or as in this
case, a cab company with a bunch of poorly maintained AEROTRON commecial
radios.  We allowed the repeater to be brought up using any one of the
following three methods:
	1.  PL.
	2.  Any Touch Tone
	3.  Three kerchunks within one second followed by the carrier
		staying on.

-Ron