[Elecraft] K2 and KPA100

[Don Wilhelm]

Robert,

That statement is not a consideration for the KPA100 or without the KPA100.
The additional mic gain *may* be required for *some* microphones - most 
notably those with Heil HC4 or HC5 elements which have about 10 dB less 
output than most other ham microphones.
Other low output dynamic microphones may also need ampliication.
Note that the additional amplification is needed for these microphones 
whether or not the KPA100 is installed.
If the microphone is an electret type element (needing the bias 
resistor), then additional mic gain is not required.

Check on 10 meters using a dummy load - I suggest setting the 
compression (SSBC menu parameter) to 3:1.  Set the K2 to display ALC - 
if any bars are illuminated, you have adequate mic gain.  Do not 
overdrive the mic input unless you want to create the "CB" syndrome of 
"All Controls Full Right" and have your ham neighbor endure the 
resulting splatter.

73,
Don W3FPR

Robert Wood wrote:
>
> K0WA comment on SSB for the K2 is right on - the KPA100 will work better if 
> the K2 is reworked by the owner on the SSB board/input
>
> 73 Robert
>   
>