The UNAVCO Facility in Boulder has been involved in receiver and antenna testing to support UNAVCO Community equipment purchases for over a decade including: the community Academic Research Infrastructure (ARI) procurement of over 250 systems in the mid-1990's, the SuomiNet Major Research Infrastructure (MRI) purchase of over 100 systems in 2000, the Plate Boundary Observatory's (PBO) purchase of 875 permanent station systems and 100 campaign systems in 2004.