[Elecraft] Power to the Tuner

[Mike Dodd]

On 1/8/2023 10:35 PM, Richard wrote:
> Normally, the KAT500 takes its DC power from the K3S. The easiest way
> to power the KAT500 when using it with the 7300 is the have to K3S
> powered up but not connected to any of the antennas.

I do it differently. I power the K3 (now K4) _and_ the KAT500 from a 
single Alinco DM330MV power supply. Whenever the power supply is on, the 
rig and the KAT are both powered, but the rig doesn't need to be 
switched on.

It seems like you could do the same thing with your two rigs. Turn on 
the power supply, then choose the rig you want to use. No need to turn 
on the K3 just to power the KAT500.

One other consideration: The K3's 12 VDC output is rated for 1 amp, and 
the KAT500 specs say it draws a maximum of 1 amp. I'd be wary of being 
that close to the limit.

Bottom line: You can't go wrong if you power all equipment from the 
power supply.

73, Mike N4CF