Our repeater's cavity filter was transported to the work bench of Bryan (VE7BFY) who gave it a serious touch up. He even adjusted some of the critical coax lengths. In the end he reported that it is giving a 90dB notch of the frequency with a 1dB insertion loss. We are not sure of the de-sense level but initial field tests show significant improvement in receiver sensitivity. It now seems to be a workable repeater!