From what I've seen, most repeaters output the same PL tone as the input requires. This will enable a receiving station to use tone squelch on the receiver to eliminate interference, such as from paging systems. Some may not output a tone, but from what I've seen, most of them around Tulsa do, unless things have recently changed with that. Some repeater controllers even have an option to generate the output tone in case the transmitter doesn't handle the tone output. I very rarely monitor anything in amateur bands anymore, but used to alot when I was active there.
PJ, in the 145 MHz band, most repeaters use a -600 KHz offset, although some will be different than that. You may have known that though...
- Rob