Darrell,
I have exactly the same setup. Before that I had used K3 and Expert 1K-FA.
Never used ALC, just power per band. ALC backward regulating output power
is the cause of interference.
73, Igor UA9CDC
----- Original Message -----
From: "AB2E Darrell" <[email protected]>
To: <[email protected]>
Sent: Friday, April 03, 2015 7:34 AM
Subject: [Elecraft] Question K3 ALC w/SPE Expert 1.3K-FA amp
Hello all,
I am the proud new owner of a new K3. I am also the proud new owner
of an SPE Expert 1.3K-FA solid state amp, and I have a question for the
group regarding interfacing the K3 to the amp.
My current setup is using my Icom 756 Pro III with the SPE Expert 1.3K-FA.
The recommended setup for Icom was to connect both the Relay and ALC
cables between the rig and amp. This is because the software in the amp
automatically reduces the power in the rig to the best output level for
the amp (on the amp LOW=500W out= 3W drive, MID= 1000W out= 6W drive, HIGH
= 1500W out = 9W drive). It works flawlessly. Actually, I could leave the
power on the Pro III untouched, and the amp reduces the power accordingly.
My question for the group is, is there a way to allow the K3's output to
be controlled by the amp? I see the note on p27 about not using an amp to
control the K3's output, but wonder if there is a safe way to do it. For
instance, could the K3 be set to say 15W out on all bands via the menu,
then allow the amp to control the output via ALC for optimum drive?
Any info and comments appreciated.
73 Darrell AB2E
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