I believe, but could certainly be wrong that P L tones and CTCSS 
tones are two different animals.  Same idea but perhaps a different 
wave form or something such as that.  Or perhaps I am all wet!
I'll try to research it a bit.
Pat, K9JAUAt 02:45 PM 11/5/2012, you wrote:
>Lou, After giving it some thought I do have a better explanation of what we
>are doing.  We have a PL tone on the repeater's receiver  so that the
>repeater is only activated by those transmitting that tone.  The repeater in
>turn puts out a tone on its transmissions so that only receivers that have
>that CTCSS tone turned on are going to receive the signal.  I hope that
>makes more sense than my first explanation did.
>
>Bob
>
>-----Original Message-----
>From: For blind ham radio operators [mailto:[log in to unmask]]
>On Behalf Of Lou Kolb
>Sent: Monday, November 05, 2012 2:32 PM
>To: [log in to unmask]
>Subject: Re: TS480/SAT in FM operation
>
>Bob,
>
>I thought they were the same.  Perhaps I'm misunderstanding what you mean by
>ctcss and Pl tones, but I thought both those terms refered to a tone that's
>transmitted continuously as long as the transmitter is up to hold the
>squelch open on the receiving end.  I'm sure someone will correct me if I'm
>wrong.  73,  Lou Lou Kolb Voice-over Artist:
>Radio/TV Ads, Video narrations
>Messages On-hold:
>www.loukolb.com
>----- Original Message -----
>From: "Bob Ray" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Monday, November 05, 2012 3:11 PM
>Subject: TS480/SAT in FM operation
>
>
> > Anyone that has experience with the 480 on fm repeaters may be able to
> > help with this.  We have just added tones to our local repeater.  The
> > 480 manual, if I am reading it right, doesn't allow you to have a pl
> > tone and a CTCSS tone at the same time.  Does anyone have a work
> > around for this?
> >
> > Bob kd0br