Re: [Elecraft] K3/KAT500/XV integration

2020-04-16 Thread Jack Brindle via Elecraft
You can try it, but I think the real solution may be to leave the XV powered while the K3 is on. The reason is that the XV has weak pull-up to +5V on its Auxbus line. When the XV is off, that 5V line is actually at 0 volts, which means it is pulling the signal to the common reference. This,

Re: [Elecraft] K3/KAT500/XV integration

2020-04-16 Thread GWK
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

Re: [Elecraft] K3/KAT500/XV integration

2020-04-16 Thread Jack Brindle via Elecraft
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

[Elecraft] K3/KAT500/XV integration

2020-04-16 Thread George Kidder
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