Is the equipment you are working with weird stuff like JVC etc? Here's a dumb question - did you go thru that big list of TS's for RF? I'm assuming you've done a number of the 800/850s before the 3000 and had better luck.

new batteries in everything
direct lighting (including the plasma turned off, the laser mouse etc)
RF sniffer

I had a house just a few weeks ago that drove me crazy because of the RF interference - never could figure where it was coming from but found a dead little spot after about an hour.

I've done a boatload of 800/850s with literally tremendous success. Have you guys found the 3000 any different with regards to the RF feature? I haven't connected RF to my own 3000 yet - I was assuming there should be little to no difference in the models?