[Elecraft] Poor Low audio frequency response on JT65 mode with my K3 ?

[Clifford Hynds]

Hope someone has an answer,

I am a recent owner of the K3 having just bought a K3, P3 and KPA500
station from another ham.

Probably you would have to be a regular user of the JT65 mode to notice but
I seem to get little or no output when I am below about -500hz or so on the
waterfall on JT65HFand nothing really at -1000Hz, fine from there up.

Probably affect other data modes also ?

I am using line in/out on the K3 and DATA mode so no equalisation,

Had no problems with other rigs FT847,FT817 and TS950SDX had no problems
with the low end.

Could be as simple as increasing the input capacitor for the line audio or
as the audio is controlled by the DSP perhaps an upgraded DSP unit. The K3
is in the < 1000 Serial numbers 718 if i remember not in front of it at the
moment.

Hope someone has an answer,
thanks
Cliff VK2CCJ