I did that with a TKR-720 and a Motorola GM300 as a Remote Base still working
nice.
John
----- Original Message ----
From: skipp025 <[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, May 1, 2008 11:37:00 AM
Subject: [Repeater-Builder] Re: TKR820 (tkr-720) COR Logic (pin13) information
wanted.
Re: TKR820 (tkr-720) COR Logic (pin13) information wanted.
Wow, this post has some history... y yo necesito mas practicar
en espanol Que Lastima! Read on.
The Kenwood TKR-720 and TKR-820 repeaters have a cor output
logic line with non-standard voltage values. The cor changes
dc level with cos however, the dc values are not standard in
the form of active high being some voltage and active low
going to dc ground (or the converse).
I designed and build a simple dc level detector circuit I
now use for all my repeater cor/cos and squelch detection
circuits. I've got the design down to one very fast adjustment
and it otherwise doesn't care what the input voltage values
are or where they transition to output a standard form-C type
relay or simple FET/bipolar transistor output.
It's a viable enough design that I'm having a fair number of
pc-boards made to be offered cheap to anyone who might want one
in kit or pre-built form. The time line for the project is at
least after Dayton and maybe into June.
But if you'd like to make your own you can contact me direct
and I'll try to help you with the proper information.
cheers,
skipp
skipp025 at yahoo.com
www.radiowrench. com
> "Private" <[EMAIL PROTECTED] ..> wrote:
>
> Ive been searching for that for abt a month now...Im running a 820
> with the Arcom Rc210 controller but, and I think u know what im going
> to say, lol....Wont keyup without COR...let me know if u fand
> anything out and Ill share with you.
>
> Frank
>
> --- In Repeater-Builder@ yahoogroups. com, XE2SI <xe2si@> wrote:
> >
> > Hello Skipp, I am here in Tijuana, just across the border with San
> Ysidro, Ca.
> > Good it works for you. 73.....
> > Juan
> > ----- Original Message -----
> > From: skipp025
> > To: Repeater-Builder@ yahoogroups. com
> > Sent: Tuesday, January 11, 2005 8:31 AM
> > Subject: [Repeater-Builder] Re: TKR820 (tkr-720) CORlogic(pin13)
> informationwanted.
> >
> >
> >
> >
> > Just what the doctor ordered. Thanks Juan.
> >
> > Su respuesta trabajada muy bien. �Qu� estado
> > usted vivo adentro? Tengo familia en GTO, MX
> > Gracias otra vez mucho.
> > skipp
> >
> > > XE2SI <[EMAIL PROTECTED]> wrote:
> > > Looks that you have an old repeater, the new ones
> > > have that pin called TOR wich is what you want,
> > > if this is the case there is a small square island in the
> > > controller board near the IC11 ( pin 9 ), this
> > > change state when there is a valid "PL" received,
> > > maybe you will need a buffer for what you need.
> > > hope this helps.
> > > Juan
> > > ----- Original Message -----
> > > From: skipp025
> > > To: Repeater-Builder@ yahoogroups. com
> > > Sent: Monday, January 10, 2005 6:27 PM
> > > Subject: [Repeater-Builder] TKR820 (tkr-720) COR logic (pin
> > > 13)informationwante d.
> > >
> > > Hello there,
> > >
> > > Anyone have information to configure the COR output
> > > logic on the Kenwood TKR820 Repeater to ctcss only?
> > > I'd like to make pin 13 (COR) of the accessory
> > > connector change states with a valid received ctcss
> > > tone.
> > >
> > > As received, accessory pin 13 (COR) changes state
> > > with carrier squelch activity. This tidbit of knowledge
> > > seems to be a rather elusive animal. Maybe one of you
> > > has done this already?
> > >
> > > Thanks in advance for your reply..
> > >
> > > cheers,
> > >
> > > skipp
> > > skipp025 at yahoo.com
> >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
>
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