An apparatus (106, 400, 806, 1100, 1200) for wireless communications comprising: a baseband unit and at least one of a RF-to-baseband receiver portion and a baseband-to-RF transmitter portion for communicating via at least one ultra-wide band, UWB, channel with a remote apparatus; means for receiving an incoming signal from the remote apparatus using a super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204), wherein the super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204) comprises a plurality of super regenerative amplifiers (502-1 - 502-N, 550-K, 602-1 - 602-N, 702-1 - 702-N) which are each quenched at a quench frequency in the GHz range which is at least twice the bandwidth the apparatus (106, 400, 806, 1100, 1200) is designed to cover for discerning a line of sight, LOS, portion of the received incoming signal from non-LOS portions; and means (204, 810, 1100, 1208) for determining the distance to the remote apparatus based on the incoming signal received with the super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204); wherein the means (204, 810, 1100, 1208) for determining the distance comprises means for determining a line of sight portion of the incoming signal; and wherein means for determining the LOS portion of the incoming signal comprises: means for generating a first response related a power level of the incoming signal; means for generating a second response related to a power level of the ambient noise; and means for generating an output based on a comparison of the first response to the second response. a baseband unit and at least one of a RF-to-baseband receiver portion and a baseband-to-RF transmitter portion for communicating via at least one ultra-wide band, UWB, channel with a remote apparatus; means for receiving an incoming signal from the remote apparatus using a super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204), wherein the super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204) comprises a plurality of super regenerative amplifiers (502-1 - 502-N, 550-K, 602-1 - 602-N, 702-1 - 702-N) which are each quenched at a quench frequency in the GHz range which is at least twice the bandwidth the apparatus (106, 400, 806, 1100, 1200) is designed to cover for discerning a line of sight, LOS, portion of the received incoming signal from non-LOS portions; and means (204, 810, 1100, 1208) for determining the distance to the remote apparatus based on the incoming signal received with the super regenerative receiver (202, 406,500, 600, 700, 806, 1106, 1204); wherein the means (204, 810, 1100, 1208) for determining the distance comprises means for determining a line of sight portion of the incoming signal; and wherein means for determining the LOS portion of the incoming signal comprises: means for generating a first response related a power level of the incoming signal; means for generating a second response related to a power level of the ambient noise; and means for generating an output based on a comparison of the first response to the second response. means for generating a first response related a power level of the incoming signal; means for generating a second response related to a power level of the ambient noise; and means for generating an output based on a comparison of the first response to the second response.