http://elecraft.85.s1.nabble.com/PSK31-newbie-questions-tp2294888p2294928.html
>> ...I made a contact in WA and OR on 30 watts so I
>> think it works OK. I spent yesterday getting everything setup and trying
>> to get a grasp on DM780. After playing around for awhile, I got
>> comfortable enough to try it out today.
>>
>> During the setup though, I read on Elecraft's site and on the reflector
>> to set the line input level to obtain 4-7 ALC bars.
>
> 4 to 5 bars, I think.
>
>> In reading about
>> PSK31 elsewhere and including the HRD site, they all mention not to use
>> any ALC or Compression. My guess is that we are not actually using the
>> K3's ALC in this manner, but wondered if anyone could tell me what the
>> K3 is really doing?
>
> The K3 meter from 0 to 5 bars of "ALC" is really showing you the input
> audio level. It is only after 5 bars of ALC that the mic audio system
> begins to do any fast attack, slow decay gain control.
>
> Traditional ALC indicators usually show compression occurring at RF,
> with attendant distortion and splatter. Hence, our very specific
> instruction for the K3.
>
>> ...If I set my line input level for 5 ALC bars and set my power to 30
>> watts, I'm seeing peak readings around 30 watts with my LP100 meter. Is
>> that how it is supposed to work?
>
> Yes!
>
> 73,
>
> Lyle KK7P
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