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

[mike at midnighteng.com]

John,

I sure it has the voltage but does it have enough current ?
You may need to buffer it with a transistor.
I would think that it does not need it.

However, are you sure you logic is correct as-is or do you need to invert it?
Try feeding cos line +5vdc (or ground) without the cos line and see if it
triggers the system.

...mike/kb8jnm


>  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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