I just finished attending an Axell Webinar and the engineer really harped on PIM requirements. So I looked it to make sure I understood his concerns.
For you gents sharing space with Cellco or Two way radio operators on site, this can perhaps shed some light to what can cause you headaches. http://www.anritsu.com/en-US/Products-Solutions/Solution/Understanding-PIM.aspx Jaime Solorza Wireless Systems Architect 915-861-1390