Re: TKR-820 and TKR-720 Kenwood Repeater with an external Tone Panel The generic answer is no... the tkr-720 and tkr-820 COS/COR logic will not normally direct drive a tone panel... HOWEVER, you are lucky in the case of using a CSI TP-154, which should work well with the COS/COR Voltages available on/from the repeater. CSI did a very good job of designing their interface circuit.
Be sure to follow the CSI TP-154 instructions to set the proper COS/COR logic and you're on your way. cheers, skipp skipp025 at yahoo.com > "Paul" <[EMAIL PROTECTED]> wrote: > > Here is a question a posted yesterday... > > Any information would be great, thanks! > Paul > > Paul, > > If you are a member of the Repeater-builder Yahoo group, pose this > question > to Skipp... IIRC, he is a Kenwood dealer and has come up with an add- > on > circuit of some type to obtain the "correct" voltages. > > But FWIW, I am running an external controller with my TKR-820 with no > problems - and no mods to the COR voltage(s). You are correct - Pin > 13 is > COR (active LO)... > > Mark - N9WYS > > -----Original Message----- > > 1b. Re: TKR-820 > Posted by: "wd8chl" [EMAIL PROTECTED] com jdbtcore > Date: Thu Aug 28, 2008 1:06 pm ((PDT)) > > Paul wrote: > > When mating a TKR series repeater to a shared repeater tone panel, > the > > kenwood only shows 3.5 volts on the COR line. Does anyone know if > that > > is sufficient for a CSI TP-154? Is there a fix/mod or better place > to > > get 5 volts, I am getting it from the 15 pin molex pin#13. > > Thanks, > > Paul >
