开云体育

IZUMI-chan,

Try to change the CW pitch, maybe DOWN like 500Hz if you feel FIL3 doesn't present clear CW sound to your ears.

Your ears have characteristics toward the balance of signal and background noise. Changing the CW pitch also changes the tone of background noise.

I like around 520Hz pitch which presents me a better balance of signal and noise.

88,
// HIRO, JJ1FXF