I've noticed one of my towers performing badly. All signals around 15-20 db lower than normal. It was a RB333, omni, and XR2. First thought was a bad XR2 card; after swapping it out there was no change. Upgraded software and firmware on RB333, still no change. Grasping for straws, I swapped out the RB333 with a RB433. I didn't expect it to be the fix, but that was it. We kept the same XR2 card in it. All signals improved, some around 20db. Is this an issue with some RB333 boards? Anyone else seen anything like this.