[Elecraft] K2 Signal to Noise on 160m ?

[Jimithy66]

Is there normally high noise on 160m with a K2 ?

Comparing the K2 to an old Ten Tec Delta the
k2 signals seem to be lower and noise higher.

A sharp sizzling frying pan noise was pronounced
on the K2 and uncomfortable to listen to but barely
there on the Delta.

This a used K2 and I adjusted the STP (Sidetone Pitch)
to my liking and wonder if that messed something up
or is the K2 noisy on 160m ?

This is the QRP K2 with ATU but no Noise Blanker or DSP.

Thanks,

Jim  /  W1FMR