[Elecraft] KBPF3 and KPA500

[Richard Ferch]

As I understand it, the way the PR6 uses the DIGOUT1 connection (pin 11) 
and the way the KPA500 uses the same connection are physically 
incompatible with one another.

The solution is apparently to break the connection on pin 11 to the 
KPA500 - see 
<http://elecraft.365791.n2.nabble.com/KPA500-PR6-AUX-Cable-Pin-11-td7558085.html> 
.

I believe that if you wanted to use the KPA500's INHIB IN feature, you 
would have to connect the K3's pin 11 to the KPA500, install jumper P2 
in the PR6 and disconnect the control connection from the PR6 to pin 11, 
thus disabling its automatic bypass feature.

73,
Rich VE3KI


K8CXM wrote:

> I installed a KBPF3 option, and it works OK, mostly. I also have a
PR6, so I am trying to use the BYPASS connector of the PR6. I have
pulled the jumper in the PR6, so the BYPASS would would work. And it
does, as long as my KPA500 cable is disconnected. When I connect the
KPA500 control cable, it seems power is ALWAYS applied to the PR6,
rendering the BYPASS not connected. DIGIOUT1 is off on all bands,
except 6. When I disconnect the KPA500 control cable, all works as it
should (except the KPA500). What am I missing?