[Elecraft] AL-811H Amp and K3

[David Wilburn]

I will be picking up an AL-811H soon.  I was first licensed in 2001 
and I have never had an amp.  The 811 requires a 15ms delay, and I 
noticed that the firmware now supports up to a 20ms delay, so I should 
be good there.

The 811 documentation talks quite a bit about the use of ALC, and the 
K3 documentation talks quite a bit about NOT using ALC.  I'm not sure 
where to go with this.  Anyone using a K3 with an 811?  Do I need to 
use ALC with it?

I am trying to get everything ready for the upcoming contests, so 
timing is becoming an issue.

The current manual says to see the website to see if you need the mod 
kit.  The website says to see the mod kit manual, to see if you need 
to the mod kit.  The manual does not say anything about how to 
determine if you need the mod kit, so I assume that if -12v ALC is 
needed, the mod needs to be done.  Is this correct?

I do not see any mention in the K3 documentation about connecting to 
amps. It looks like the key out is used to key the amp.  The manual 
says up to 200v DC @ 5A.  The 811 documentation only mentions 12v, and 
gets grounded for keying the amp.  Do I need any other devices inline 
for keying the amp?
-- 

David Wilburn
NM4M
http://www.nm4m.com
K2 - S/N 5982
K3 - S/N 766
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