I just bought a RFX6500. Using a PCF file that worked OK, I tried to switch my audio & one of my Replay TV units to RF, leaving everything else IR. File works OK in sim mode, but when downloaded to TSU3000 it locks up (beeps until I go to "Devices" screen). Switch everything back to all IR, all OK. Can a TSU3000 do both IR & RF within the same file? Does everything have to be all IR or all RF? Please help! I'm so confused!

It is the device where the codes are stored that determines whether it is IR or RF. You can have some devcies set to IR and others to RF.

See my reply here as well. Should prove to be helpful. :-)

Thanks for the responses. I think I need to explain what's going on better.
Replay2 macro = Audio ON, TV ON, Replay2 ON, Audio & TV inputs to Replay2, jump to Replay2 Transport. If all IR works OK. If I set Audio to RF, macro runs OK & AV gear responds properly to commands in both IR & RF. But when Pronto Jumps to Replay2 screen it just beeps constantly & won't respond to hard or soft buttons. If I touch "Replay 2" at top of screen, Pronto jumps to devices page & stops beeping. I can then select Replay2 & Pronto goes to Replay2 Transport screen & all is OK.
Problem affects all my macros. Only Replay unit I wanted to switch to RF is #3 & it has nothing to do with this macro.