[Elecraft] K3 - Accessory Jack - How Many Wye Cables?

[Don Wilhelm]

Rich,

I assume you also have a KPA500 in the mix.
The problem is not with adding another "Y" cable, but the possibility 
that the other device will interfere with the band signalling to the KPA500.
If that other device has pullup resistors, that can create problems, 
especially if the pullups are to some voltage other than 5 volts. You 
may have to add isolating diodes to that device (the KPA500 does have 
those protection diodes on the band data lines).

If it has no pullup resistors, then it may be OK.

73,
Don W3FPR

On 5/12/2014 7:48 AM, Richard Thorne wrote:
> Currently I have a wye cable attached to the accessory jack on the 
> back of my K3 which in turn is connected to a microham device and the 
> KAT-500 tuner.
>
> I have a need to supply band data to another device, can I connect 
> another wye to the current wye so I can connect 3 devices to the 
> accessory jack?
>