[1000mp] Is there a better AM filter?

[Dean Fewkes]

I have had my Mark 5 Field for a couple years now and I am getting more 
interested in Short-wave listening.  The stock 6000 Hz AM filter is 
rather poor and usually lets in a lot of high-pitched noise that is a 
lot wider then 6000 Hz.  When you turn on the AM EDSP demodulator it 
does limit the pass band to a reasonable width but it creates a lot of 
distortion for some reason only on AM.

I would like to replace the tiny stock 6 kHz filter with a quality 
filter with steeper skirts.

I would welcome any ideas or discussion on this subject.

Thanks!

Dean Fewkes
KG7MZ