Hi again,

A little while ago I wrote the message below. I am still searching for ways
to compensate for the tilt in my new 2.8kHz crystal filter. One way would be
to have a way to set the RX equalizer through a serial command / macro. Is
this going to happen soon? Another way would be to have the RX equalizer
settings stored by mode so they could be different for USB and LSB. Is this
going to happen soon? Am I really asking too much here? I spent money
getting the 8 pole 2.8kHz filter hoping it would solve the tonality
difference between USB and LSB, but achieved nothing. Recently there was
somebody on here wishing that Elecraft would sort these filters weeding out
the ones with a bad tilt. Should I order another one hoping to get one with
a flatter response?

AB2TC - Knut

Hello all,

I recently replaced the 5-pole 2.7kHz roofing filter in my K3 with the
8-pole 2.8kHz hoping to get rid of the difference in tonality between USB
and LSB. But the difference is still there. These two links show the noise
spectrum of the receiver in USB and LSB.

http://ab2tc.getmyip.com:8000/pictures/usb.png
http://ab2tc.getmyip.com:8000/pictures/lsb.png

In USB there is a definite upward tilt of the passband and the opposite for
LSB. This is quite audible. Is this normal and is there anything I can do
about it (other than asking Elecraft to add by mode equalizer)?

AB2TC - Knut

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