Accessory Connector Pin 3 is the "DI" Modulation
input (both signaling and audio). Pin 2 is the
Line & mod inpug Ground "GND".
Pin 5 is the Line input, modulation input.
good luck...
skipp
www.radiowrench.com
> "Hellewell, Byron" <[EMAIL PROTECTED]> wrote:
> Hi
> Can anyone help me with the physical location of where to inject a
> variable
> CTCSS tone into the Kenwood TKB-720 radio.
>
> I do not have the schematic or manual just the connector pinout.
> So a good description would help.
>
> I tried adding it to the audio being sent to the audio input pin in
> the
> accessory connector but it must be filtered as the tone does not get
> thru.
>
> The repeater version (TKR-720) has another audio input pin
> but that pin is used for frequency selection in the TKB-720.
>
> Thanks
> Byron
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