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

[Jim Miller]

I made a patch panel using adapters mounted on DIN rails from Winford Engineering. 

73

Jim ab3cv

On May 12, 2014, at 9:49 AM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:

This is an issue.  If you have a band decoder, want to run the preamp, the amp, tuner, and say a Microham device.  I have used multiple Y adapters successfully.

Mike W0MU

> On 5/12/2014 6:04 AM, Don Wilhelm wrote:
> 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?
> 
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