K3 Key Input

[Brett Howard]

Being that I'm not around my rig I'm using the schematic as a reference
after searching the manual and not finding what I need.

The Key input looks like if its enabled its got +5V on the port that
needs to be able to be sunk to ground.  

Am I reading that right?  Has anyone seen this in another area
documented and/or verified this with a meter?

Thanks much

~Brett

PS:  I'm asking as I'm wondering if I should order the WKUSB kit or go
ahead and spend the WKUSB-HV kit which can switch units that have 3.3V
or less on the key in jacks.  

Thanks much...



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[Ken Wagner K3IU]

Just measured mine at ~4.9 VDC open circuit.
73, Ken K3IU

Brett Howard wrote:

> Being that I'm not around my rig I'm using the schematic as a reference
> after searching the manual and not finding what I need.
>
> The Key input looks like if its enabled its got +5V on the port that
> needs to be able to be sunk to ground.  
>
> Am I reading that right?  Has anyone seen this in another area
> documented and/or verified this with a meter?
>
> Thanks much
>
> ~Brett
>
> PS:  I'm asking as I'm wondering if I should order the WKUSB kit or go
> ahead and spend the WKUSB-HV kit which can switch units that have 3.3V
> or less on the key in jacks.  
>
> Thanks much...
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>  

______________________________________________________________
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html