[App_rpt-users] DMK URI COS Level / Kenwood TKR-850

[REDBUTTON_CTRL]

Set the Kenwood COS o/p to active low and connect to the URI. Set the 
"Corfrom" to "Usbinvert" In the Usbradio or Simpleusb. files.

The URI COR & PL inputs require a signal that goes to ground. It doesnt 
care about voltage swing.

Jon VA3RQ

On 5/9/2015 2:24 PM, David McGough wrote:
> Hi John,
>
> Yes, the TKR-850 (version 2, at least) will interface perfectly with a DMK
> URI, no extra parts required...I've got several 750's and 850's on-line.
>
> One caveat to note is that you may wish to add a pull-down resistor on the
> COS signal line to keep the URI from thinking the RX is active it the URI
> is unplugged from the repeater or the repeater is off.
>
> 73, David KB4FXC
>
>
>
> On Sat, 9 May 2015, John wrote:
>
>>   Is the 0-5 Volt COS swing on a Kenwood TKR-850 sufficient to switch the
>> COS on a DMK URI? Can't seem to get my system to repeat. I'm out in the
>> 'boondocks' with very few parts and a long way from a Radio Shack. Just
>> hoping I don't need to buffer the COS somehow to get it to switch.
>> John
>>
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