Holy cow! I don't know how I did that - I was replying to a completely different message from someone else but somehow I sent it to the list. Sorry 'bout that...
> -----Original Message----- > From: [email protected] > [mailto:[EMAIL PROTECTED] On Behalf Of Jeff DePolo > Sent: Sunday, July 20, 2008 11:56 PM > To: [email protected] > Subject: RE: Re: RE: [Repeater-Builder] Re: PL Problem > > I'll probably get down there before they finish. They don't > need me there > to put the dish together - I would just be standing there > watching anyway. > Once they're done we'll have to do the alignment, configure > the receiver, > finish the wiring up, etc. Is Mel done with whatever he has to do to > automate the log? > > > -----Original Message----- > > From: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > [mailto:[email protected] > <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Paul Plack > > Sent: Sunday, July 20, 2008 4:49 PM > > To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > Subject: Re: Re: RE: [Repeater-Builder] Re: PL Problem > > > > ? > > Guys, this is nothing more than really low-frequency DTMF. It > > should work fine if the levels are low enough that they're > > not clipped or otherwise distorted. In a non-linear stage, > > they'll cause audio intermodulation distortion. > > > > If the combined voice + CTCSS level hits the limits of a > > clipper for a long enough duration, (like the guys who feel > > the need to key their mics before thinking of what they'll > > say, and fill with "uhhhhhhhh...") you could drop the > > receiver if the audio distortion confuses the CTCSS decoder. > > But that could happen with a single tione, too. > > > > 73, > > Paul, AE4KR > > > > > > ----- Original Message ----- > > From: Ron Wright <mailto:[EMAIL PROTECTED] > <mailto:mccrpt%40verizon.net> > > > To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:[email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > > Sent: Sunday, July 20, 2008 1:10 PM > > Subject: Re: Re: RE: [Repeater-Builder] Re: PL Problem > > > > > > John, > > > > I've wondered about multi-PL tones at one time. > > > > I am sure with the older reeds not a problem, but newer > > IC type usually take in the PL, strip off the higher freq > > audio leaving only the PL and then feed to a pin that I am > > sure is counting the period or doing some period averaging. > > The Comm Spec TS64 has to be this way for they use a 6800 > > ventage CPU for their decoder. > > > > If 2 PLs were present this would have a wierd wave form > > and bet might not decode. I've never tried it, but would be > > interesting to try. > > > > I have used multi-PLs on a single rcvr for control and > > other purposes, but never at the same time. > > > > 73, ron, n9ee/r > > > > >From: JOHN MACKEY <[EMAIL PROTECTED] > <mailto:jmackey%40usa.net> <mailto:jmackey%40usa.net> > > > >Date: 2008/07/20 Sun PM 02:58:29 EDT > > >To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > >Subject: Re: RE: [Repeater-Builder] Re: PL Problem > > > > > > > >You are correct, a good rig will have a PL filter so > > you don't hear it. But > > >many of these newer Yae-com-wood radios don't seem to > > have adequate > > >filtering. > > > > > >So I try to run my repeater PL tone at about 450 Hz, > > which has worked well. > > > > > >I know that 15 years ago I set up a GE Mastr Pro > > repeater with dual PL > > >encoding on the transmitter for a special project. I > > put each (comm-spec) PL > > >encoder at 350 Hz deviation and every decoder was able > > to lock up. Two PL > > >tones deviating at 350Hz each gave me about 750 Hz PL > > deviation on the > > >repeater transmitter. I had to build a filter network > > to roll off the sum of > > >the PL tones; 100 Hz and 146.2 Hz wanted to produce a > > third PL tone. So I > > >built a filter network which started to roll off every > > thing above 200 Hz > > >before it went in to the modulator stage. > > > > > >I do remember testing with various decoders and found > > that going below 300 Hz > > >PL deviation made decoding unreliable. > > > > > >------ Original Message ------ > > >Received: Sun, 20 Jul 2008 11:47:12 AM PDT > > >From: Ron Wright <[EMAIL PROTECTED] > <mailto:mccrpt%40verizon.net> > > <mailto:mccrpt%40verizon.net> > > > >To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > >Subject: Re: RE: [Repeater-Builder] Re: PL Problem > > > > > >> A good rig has a PL filter so you don't hear it, but > > know it comes thru on > > >some rigs. Does sound annoying when it does. > > >> > > >> Also need to remove from the repeater receiver for > > it might beat with the tx > > >generated PL due to it being slightly different > > freq/phase. Most rigs will > > >not pass low freq PL thru their audio input. This is > > why most rigs have > > >seperate input for PL encode. > > >> > > >> 73, ron, n9ee/r > > >> > > >> > > >> > > >> >From: JOHN MACKEY <[EMAIL PROTECTED] <mailto:jmackey%40usa.net> > > <mailto:jmackey%40usa.net> > > > >> >Date: 2008/07/20 Sun PM 02:37:13 EDT > > >> >To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > >> >Subject: RE: [Repeater-Builder] Re: PL Problem > > >> > > >> > > > >> >I set all my repeaters for 450 Hz to 550 hz and > > have never had a problem > > >with > > >> >listeners being able to decode. > > >> > > > >> >so something in the range that David suggests below > > should be fine. > > >> > > > >> >I know some people who think PL level should be set > > at 750 hz to 900 hz. > > >In > > >> >my opinion, that is way to high, and it is annoying > > to hear the PL tone > > >which > > >> >can be done at those levels. > > >> > > > >> >------ Original Message ------ > > >> >Received: Sun, 20 Jul 2008 06:45:05 AM PDT > > >> >From: "David Murman" <[EMAIL PROTECTED] > <mailto:dmurman%40verizon.net> > > <mailto:dmurman%40verizon.net> > > > >> >To: <[email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > > >> >Subject: RE: [Repeater-Builder] Re: PL Problem > > >> > > > >> >> Run all my repeaters with a tone of 600 hz. This > > is what GE recommended > > >> >when > > >> >> I was in the 2-way business. So far all three > > repeaters, two VHF and > > >one > > >> >> UHF have had no problem with any radio being able > > to decode the tone. > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> David > > >> >> > > >> >> > > >> >> > > >> >> -----Original Message----- > > >> >> From: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > >> >> [mailto:[email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of nj902 > > >> >> Sent: Saturday, July 19, 2008 9:37 PM > > >> >> To: [email protected] > <mailto:Repeater-Builder%40yahoogroups.com> > > <mailto:Repeater-Builder%40yahoogroups.com> > > >> >> Subject: [Repeater-Builder] Re: PL Problem > > >> >> > > >> >> > > >> >> > > >> >> Actually, what I think what I confirmed is that I > > passed reading > > >> >> comprehension... > > >> >> > > >> >> > > >> >> The "Standard" is 500 to 1000 Hz . Period. > > >> >> > > >> >> > > ................................................................. > > >> >> > > >> >> --- In Repeater-Builder@ > > <mailto:Repeater-Builder%40yahoogroups.com> > > >> >> yahoogroups.com, "Eric Lemmon" <[EMAIL PROTECTED]> > > >> >> wrote: > > >> >> > > >> >> " My statement about the definition of "Standard > > CTCSS Modulation" is > > >> >> correct, and thank you for confirming that. ..." > > >> >> > > >> >> > > >> >> > > >> >> > > >> > > > >> > > > >> > > >> > > >> Ron Wright, N9EE > > >> 727-376-6575 > > >> MICRO COMPUTER CONCEPTS > > >> Owner 146.64 repeater Tampa Bay, FL > > >> No tone, all are welcome. > > >> > > >> > > >> > > > > > > > > > > Ron Wright, N9EE > > 727-376-6575 > > MICRO COMPUTER CONCEPTS > > Owner 146.64 repeater Tampa Bay, FL > > No tone, all are welcome. > > > > > > > > > > > > No virus found in this incoming message. > > Checked by AVG. > > Version: 8.0.138 / Virus Database: 270.5.2/1562 - Release > > Date: 7/19/2008 2:01 PM > > > > > > > > > > > > No virus found in this incoming message. > Checked by AVG. > Version: 8.0.138 / Virus Database: 270.5.2/1562 - Release > Date: 7/19/2008 2:01 PM > > >
