Batboard

I have the 1600S service manual. However, it only has block diagrams and the IPC only goes down to the board level. Does anyone know if there is a schematic for the Analyzer/Log IF assembly available. Also, does anyone know who manufacturers the 10.7 Mhz IF bandpass filter. My unit has the 30Khz filter and I would like to replace it with the 3 Khz filter.

Thanks for your help,
Bob KN4HH

KN4HH
Maybe you can try to find YEASU old FT180A radio and get AM filter(10.7MHZ 6K BW) have a try.I'm not sure whether in/out impedance match to 1600S.
About fix,make a extend cable to connect out IF board for easy fix,and try to find some imformation at
http://www.ko4bb.com/manuals/59.38.34.1 ... Manual.pdf
I don't know if you just downloaded this manual.