It used to sit in the corner of my desk, my Kenwood MC-60 microphone. Although it has a suburb audio it also has so much RFI which makes it useless. On my to-do-list: search the internet to fix this problem so I can use this nice mike.
Finally I found the easiest fix there is for the RFI-problem with the Kenwood MC-60! Open up the bottom plate and just solder a 10NF capacitor between the blue wire and on the connector which connects to the rig (see picture). And done you are! No more RFI. If only I had knew this issue was so easy to fix, I could have start use the MC-60 a long time ago!