Subaudible, right!
But, I have understood that they are composed of CTCSS, since it is
mentioned in the table title, page 66: "combinations of ctcss tones"
Anyway, higher numbered dcs's have a better chance of passing through,the
manual says, and my experience with ctcss, although they are not the same
thing, confirms this.
One commercial repeater, that i have been able to test at home, on my
desk, showed a _rapid_ decrease in amplitude, when using lower and lower
subaudible tone. (scope connected to audio monitor of the repeater)
If this is not your problem, then
no other ideas, sorry :(
Zoran
73
On Mon, 12 Jan 1998, David Stout wrote:
> Sorry, But DCS codes are a subaudible tone in a digital protocol!
>
> And as of right now no one has even said if their units are doing the
> same.
>
> I do know for a fact that the repeater IS passing the tones!
>
> Any other ideas??
>
> Zoran Kostic wrote:
> >
> > On Mon, 12 Jan 1998 Rainer.Arndt@era.ericsson.se wrote:
> >
> > > Hi Zoran!
> > > You seem to have mixed up something:
> > > DCS = Digital Code squelch
> > > CTCSS = Continous Tone Code Squelch System
> > > DTMF = Dual Tone Multiple Frequency
> > >
> >
> > No, i have not!
> > If you have a closer look at your manual, you will find it saying that DCS
> > codes are _combinations_ of single CTCSS, that is - subaudible, tones.
> > There is even a table in the back of the manual, listing the combinations,
> > one by one.
> > (from the manual for FT-10R)
> >
> > best regards,
> > Zoran
> >
> > > DCS = In Amateur radio normally implemented by sending a message by
> > > means of DTMF.
> > >
> > > CTCSS = Yes, the tones are subaudible, i e below 250 Hz, but only ONE
> > > tone is used.
> > >
> > > DTMF = Two tones are used at the same time. They are chosen so that they
> > > normally
> > > can't be decoded wrong.
> > >
> > > Regards
> > > Rainer SM5LBR
> > >
> > > KI/ERA/LRD/IA Rainer L R Arndt
> > > Purchasing Coordinator
> > > ERICSSON RADIO SYSTEMS AB
> > > Business Unit GSM, NMT, TACS
> > > Phone, office: +4687570877
> > > Fax, office: +4687571350
> > > Phone, mobile (private): +46705493900
> > > Email (private): sm5lbr@algonet.se
> > > "Don't hesitate to call me!"
> > >
> > >
> >
> > --
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>
> --
> FAQ on WWW: http://www.qsl.net/k7on/yaesu.html
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>
--
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