A read-only CwrFixedPointValue giving the signal-to-interference-plus-noise ratio measured on this link from Link Admin Up up to the current operational hour. SINR is a more complete quality indicator than raw receive power alone, since it accounts for interference from other sources sharing the spectrum, not just how strong the wanted signal is. For example, a subscriber unit whose receive power looks normal but whose p2mpSINR has dropped would suggest a new interfering source has appeared on the channel rather than the wanted signal itself weakening.