ae + leested in the primary cathode follower and connected directly to the receiving antemma. The 2 microsecond delay line was added to pernit the leading edge of the veveform to be recorded. Ina order to establish a definite time relationship between the reception of the signal and the trigrering of a given device such as a counter or trenamitter, a time marker pir, generated by the delay trigger from one of the oscilloscopes, is fed through the 2 microsecond delay line and superimposed on the initial portion of the received wavefors. All oscilloscopes are calibrated against « kmovn frequency stendard for eveep linsarity. The cathode follower triggering system is set to trigzer approximately 6db. above the noise level. The vertical deflectom of the cecilloscopes are set to receive the predicted field strength. HESULSS Station 4 = Parry Islend Positive results obteined on fast and slow sveer speed oscilloscope, The signals obteined vere of good cuality. Camera shutter on the medium aveep speed oscilloscope failed to open ent no date was recorded. a) The predicted field ee the Station B - Kvajalein The shot tise was changed and it was impossible to notify this station in tine.