[Elecraft] KAT500 power question

[Wes (N7WS)]

Let me clarify some issues before leaving this subject.

1) There are apparently multiple versions of the manual that show different 
KAT500 power requirements.  The current one, Rev C, states on page 2 that the 
voltage should be 11 to 15 VDC at a current of 1.0 A max (200 mA typical).

2)  A modified K3 will output 1.0 A. See *K312MDKT.

3) *After further digging I see the warning that if the K3 and KAT500 are 
interconnected via the AUX bus, the KAT500 must be power before the K3 is or 
*the K3* won't initialize properly. (p 14)  So there is my integration/timing 
issue.  Imagine having to have your printer powered up before booting your 
computer to avoid latch-up. Does this mean that other peripherals (KRC-2) 
hanging on the AUX Bus will have the same effect?

4) On a positive note, it went together nicely (not too pleased with the paint 
on the top cover) and seems to work fine using just the K3 without 
interconnects, just r-f sensing.  The clattering relays are a little frightening 
though when my only prior experience with autotuners was the quiet whirring of 
the motors in my TS-870SAT.

Wes, N7WS