Distance‑to‑PIM (DTP) is similar to Distance‑to‑Fault (DTF), which Anritsu introduced in the Site Master in 1997 for identifying the location of impedance mismatches in a feed line. DTP quickly and accurately identifies the location of PIM faults inside the feed system as well as beyond the antenna. This capability eliminates the guesswork involved in isolating PIM sources and speeds site repairs.
Warning
The Anritsu PIM Master is capable of producing 80 Watts of RF power in the cellular communications bands. Users must take precautions to minimize exposure to these RF fields:
Always terminate the PIM output port of the test equipment into a load, a loaded line, or a line that will radiate or absorb the energy before beginning a PIM test.
Confirm that the PIM Master RF power is off after a PIM test.
Always confirm that the PIM RF power is off before disconnecting a coaxial connection, otherwise RF burns may result. Immediate burns to fingers or eyes can result from exposure to live connectors.
Ensure that all antennas under test are placed so that no personnel are exposed to RF levels that exceed the maximum allowable exposure.
Distance‑to‑PIM is a swept measurement that enables identification of the location of multiple PIM sources in the RF path. It provides the ability to observe the impact of multiple PIM sources on the magnitude of the PIM signal. Distance‑to‑PIM is an analysis feature only, and it should not be used as a pass / fail test.