[Elecraft] K2 RF Speech Processor?

[Karl Larsen]

    Hi Geoff, cut your weeds and we can both think hard on what "Speech 
Compression" really is. I got to thinking and about all it can be is 
clipping of the high voice peaks, and increasing audio drive. I will 
look at the ARRL Hand Book and see what they have.

73 Karl K5DI




Geoffrey Mackenzie-Kennedy wrote:
> Karl Larsen, K5DI wrote:
>
>>    Hi Geoff, I would suggest if your making a mini-module let it be a 
>> speech compression device, not a clipper. Compression increases 
>> average power used and sounds louder. If set too high it sounds odd 
>> and can create clipping that generates unwanted sidebands.
>>
>>    On my radio I run compression all the time. It works in 
>> conjunction with the Automatic Linearity Control the radio has. If 
>> you don't have ALC it is harder to set the Compression.
>
> -------------------------------------------------------------
>
> Hi Karl. A moot point!! I'll have to get back to you later today as I 
> must get out to mow down the grass, mutating into elephant grass.
>
> With my K2/100 I use the audio compressor and a 'flicker' of ALC, but 
> RF clipping and again a 'flicker' of ALC in the homebrew rig. One has 
> to be very careful not to use too much ALC - other problems can arise.
>
> My apology for my haste, will reply later.
>
> 73,
> Geoff
> GM4ESD
>
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