No Peregrine until Quest had ever mated successfully with a transmitter on. I cant say with 100% certainty but she is very likely the only Peregrine to wear one for 4 years. They are designed to fall off after 2.
I do believe there have been successful mating peregrines with transmitters in the Southern Cross peregrine project
http://www.frg.org/SC_PEFA.htm I'm not sure how long their transmitters are designed to last.
I found this
http://www.falconcam.med.ualberta.ca/faqs.html"They continue to hunt, feed, breed, and raise young without a problem. The adult female at the U of A nest has been wearing a backpack for her entire breeding life and has fledged 7 young in two years - pretty good going!"