[Elecraft] Adjust ALC in Data A mode, with KX3

[Don Wilhelm]

David,

The most likely problem is that you have too much output from the sound 
card.

Try putting a 10 dB attenuator in the cable between the soundcard and 
the KX3 MIC input - 100k in series with 10k from the KX3 end of that 
resistor to the shield should do nicely.

The KX3 has an audio protection mechanism that kicks in if there is too 
much audio, and that makes the MIC level an unreasonable value.

73,
Don W3FPR

On 12/10/2016 6:00 AM, David Douglass wrote:
> Hi,
>
> I've just re-acquired a KX3, and have been trying it on JT65.
>
> As per recommendations I have been trying to use Data A mode, but trying to adjust the drive level is a nightmare, and getting the required 4-5 bars of ALC has been near impossible. If I switch to USB mode, I can set the drive levels without issue using the mic gain, and adjusting the sound are levels.
>
> I would have assumed that setting drive levels would be the same in USB mode as it was in Data A mode. Is this not the case or do I having something else going on.
>