[Elecraft] Serial #4019 is on the air, and I have a few questions...

[Don Wilhelm]

I don't use Nabble, so I expect others to offer their suggestions on that.
As for the microphone, if it needs bias on the front panel, it will need 
bias on the rear panel too - this is a requirement of the microphone, 
not the K3.  The microphones supplied by Elecraft all require bias to be 
turned on, regardless whether the front panel jack or the rear panel 
jacks are used.

Internal ALC *inside* a transceiver like the K3 *is* used to reduce 
distortion and splatter.  However, external ALC is quite different.  If 
External ALC is ever active, the amplifier is already being driven into 
compression and that condition will result in distortion and splatter.

I refer you to the commentary on the Elecraft website Builder's Resource 
page - then click on K3 Application Note and Mods link, and then scroll 
down to K3 Negative ALC and Ext Band Pull Up Mods.  Read the text in 
italics.

73,
Don W3FPR

MeLikeyTacos wrote:
> Thank you all for the replies.  For some reason, I am getting several replies
> via e-mail which aren't shown on the Nabble interface, not sure if that's
> normal as I'm still getting used to the mailing list.
>
> Anyway, when using the rear jack, it will only work with bias off, and is
> pretty quiet.  When using the front jack, it will only work with bias on,
> and sounds normal.  I've enabled Tech Mode and tried using the voice gain,
> but it didn't change anything.  I'll keep using the front jack for now.
>
> As for the ALC...typically the ALC function is used to prevent distortion
> and splatter, why is that the opposite when using the K3?
>   
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