PU is an exaggerated pronunciation of pew, an interjection that is appropriate when you smell something foul.
Unimpeded Maximum. Currently, routers running the 802.11n standard have the longest range. The unimpeded range, at the same data rates, is roughly double that of the previous 802.11g standard.802.11g was widely regarded as having an effective range between 100 and 150 feet, meaning the 802.11n standard â the latest adopted standard available â covers roughly 200 to 300 feet.he unimpeded range, at the same data rates, is roughly double that of the previous 802.11g standard. 802.11g was widely regarded as having an effective range between 100 and 150 feet, meaning the 802.11n standard â the latest adopted standard available â covers roughly 200 to 300 feet.
Different wireless clients negotiate different link speeds with the wireless router, based on the wireless modes, distance, and noise level (the level of interference from other wireless transmissions). To get IEEE 802.11n speed, both the wireless router and wireless client have to support 11n mode. If either the wireless router or the wireless client can support only 11a or 11g, the link rate would be a maximum of 54 Mbps, and the actual data transfer speed would be about 22 Mbps. The most common 11n maximum link rates are 150 Mbps and 300 Mbps.