Jack;

In my setup, the XV is connected to 12V, but is not "on" until it is selected by changing the K3 to 2 meters (which, of course, is just what it won't do.) The KAT500 is normally left on 24/7. I do not use the "Auto" selection on the KAT500, so it can't surprise me with an unwanted tune.

You think a straight-through (Y) cable will work? I'll have to make one and try, if I can find some DB15's.

Thanks for the info,

George

On 4/16/2020 12:58 PM, Jack Brindle wrote:
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George;

That message occurs because something is loading the Auxbus when the K3 is 
powered on. Make sure that the KAT500 and the XV144 are both powered up when 
you turn on the K3. They can be powered on at the same time, but the task needs 
to be done before the K3 enumerates the Auxbus, which is done in the latter 
part of its power-up sequence.

There may be a further issue with this setup, however. Whenever the KAT500 
decides it needs to do a tune, it will disconnect the Key line from its AUXIO 
output port. This is needed to cause the KPA500 to drop out of transmit. You 
don’t have a KPA500, but you do have an XV144 connected to that port, which 
will also drop out of transmit at that time. While you probably won’t see this 
issue, it is best to use a real AUXIO Y cable (15 pins straight through between 
all three connectors) to connect both peripherals to your K3.

73!
Jack, W6FB


On Apr 16, 2020, at 5:51 AM, George Kidder <[email protected]> wrote:

GM,

I am trying to get my K3 - KAT500 combination (which works well alone) to accept the addition of a 
XV144 (which works well with the K3 alone).  Having to plug and unplug control cables to switch 
from HF to VHF is a non-starter.  I had hoped to pick of the control for the XV144 from the 
"AMP" socket on the KAT500, but when this is done, I get the message "turn on 
KAT500" on the K3 display, and nothing works until the plug is removed from the XV144.

I have contacted Support about this, but thought I would also see if the 
collective wisdom of this group can give any guidance.

Thanks for your consideration,

George, W3HBM (hunkered down at home in ) Bar Harbor, ME

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