At 01:33 PM 2/23/2008, Björn Mohr wrote:
I am looking for a simple solution to reverse the K3 ALC input to a negative
going ALC circuit. If you have interfaced your K3 with any amp using
negative ALC, please let me know your solution.
Hi Björn
I haven't seen any reply to your question posted yet.
The question of the ALC compatibility has come up
before. Elecraft have promised that they will
provide a solution soon. See their K3 FAQ at
<http://www.elecraft.com/K3/K3FAQ.htm>http://www.elecraft.com/K3/K3FAQ.htm
, where they state: "Once ALC is working to our
satisfaction, we'll provide simple interfacing
information that will allow the use of negative
control voltages (probably a resistive divider
pulled up to a positive supply, or at most an op-amp circuit)."
So you might want to query Elecraft directly to
see if this design is complete yet.
I have a K3 on order, and, like many others, I
absolutely need a standard negative-going ALC
voltage to protect my Quadra in the event of an
antenna failure while transmitting. I would
prefer to have it working properly inside the K3
rather than some kludge that I have to try to add
and then wonder if it actually works, but I will
take whatever design Elecraft can provide.
Jerry W4UK
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
