There's an interesting white paper put out by Kaelus regarding the May 2012 update to IEC-62037 which covers PIM testing. One of the new requirements for PIM tests is that "Devices should be subjected to impact or movement while PIM testing." That appears to mean that you should move and/or tap on connectors, cables, assembles, filters and antennas. Kaelus also points out that the IEC kept the same recommendations that the original specifications had of using 2 x 20W test tones. They also go on to note that other testing equipment manufacturers' claims that testing should be conducted at 40W should be ignored because if carriers truly wanted to simulate the actual BTS environment they would need to transmit 100s of watts to capture the full range of transmit levels. Kaelus says in order to do that, the required test equipment would be "larger, heavier and more expensive and would pose safety risks to technicians performing the test." What are your thoughts?