The pulses ceveloped by the Jifferentiatias circuitry (approxisutely 0 wslts) are anplied to the sininagnetroa asd cause a [regvencs froa the pre~ selected quiescent frequency (sanimally «000 - (iy From the ainisagnetron oscillator, the aignal goes to the RF swnitoring and isolation owowork which is composed of stasiard waveguide components. The signal enters this systea Chrough 2 coaxial savesguide transition and hence to a directions] coupler. The low-power sile of the coupler gees to an absurption frequency meter acd Cerminates in a crystal Jetector. This portion of the sys- tem is intended to monitor frequeacy and power output of the sinisggnetron during precpersaticnn! set-up procedures. The high-power side of the coupler feeds into a ferrite isolator which in turm feeds a waveguide-to-coaxial tranSition. From this transition the RF is ccuducted by RG-9 coaxial cable through the missile pressure bulkhead to the hora antennas at the rear of the Sedstore guidance section. The signal is nexe transaitted to the 3round receiving station where it is amplified, demdulacted, and displayed oo a high-speed oscilloscope. The in- ftomsation is permanently recorded by photograshing the oscrlioscope trace with a moving-fila cavers. A complete description of the receiving and recording equipzent [is given by Brumley and schultheis! and Glass.? s 9.2.3 “Hardtack Operational Plaa “Equipsent apd personnel were transferred from Bixini to Johnston Island to begin set-up and check-out about 35 days before che Teak event. The re- ceiving station was installed on Johnston Island, and parabolic receiving antennas of i-],’2 and 3-1/2 bvan widths sere placed on top of the station. Assenbly and check-wul of the first airborne Cranszitting system eas started after grount installations were completed. Planning called for this equip- ment to be installed in the Redstone sissile Juls 19 on Johnston Island, Following installation of celesatry equipnenc, erected. the sissile was as:enbled aad Séveral s.stem checks were wade before the syotem was judged reads for flishe.