[Elecraft] Low Line-In level

[Dragan 4O4A]

I think that PC speakers level is OK. On my headset, on my speakers tone
sounds just fine, clean.

I tried to ground PC - no difference.

When connected to MIC input, I tried various BIAS settings. With all three
settings (no BIAS, L and H), result is the same except that with High BIAS
it needs less sound level to trigger VOX.
Again, with MIC input, sound is OK, but it is pulsing. Sorry for my English,
I don't know how to explain "pulsing" :) 
I can hear sound well. When K3 meter is showing power, it is stable and no
fluctuation. When meter shows ALC, it is "pulsing" slowly from zero to, say,
5 bars and back to zero, with frequency of 1 pulse in second (or so). It
looks like ALC is not only limiting sound level, but dropping it back to
zero.

I didn't notice any RX problem on other modes, CW or FSK Digi, not even on
SSB which I use very rarely (with HM-2 mic).



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