Methods and systems for monitoring a plurality of different optical signals from a single source of such signals, where each such different optical signal is spatially separated from other such signals and directed to different detectors or locations upon a single detector, which direction is generally accomplished through the use of a small numberof optical components andor manipulations. Each delay element has a delay time of one unit delay time. The pushpull machine has a stationary frame that is placed against the ground to provide a reaction surface. It includes a vaporizer, a photon source for photoionizing vapor molecules upon exit from the vaporizer, a passageway for transporting ions to, for example, a mass spectrometer system, and a means for directing the ions into the passageway. Intersecting frames can represent the geographic location of the UE in the wireless network. The time for test recording for determining the optimal recording power can be shortened.