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Onepiece copper maser comb structure fabricated with improved process
An XY recording of TWM bandpass and electrical length
10 other sections not shown
246R klystron additional bandwidth antenna block diagram center conductor center frequency clamp closed-cycle helium refrigerator coaxial line comb structure Communication at 2295 Deep Space Communication DETECTOR DIRECTIONAL COUPLER dual-frequency klystron package electrical length electronic tuning range equivalent input noise equivalent input temperature external cavity external overcoupled cavity Figure GAIN ADJUSTMENT COIL gain for additional Goldstone group velocity HEAT SINK in-line quarter-wave thermal input line insertion loss installation Jet Propulsion Laboratory klystron frequency klystron will oscil magnetic field Mars DSS MASER OPERATES maser structure measured MHz Fig mismatch NOISE POWER perature planetary radar pump klystron quarter-wave thermal short reflected power reflector voltage REFRIGERATOR AT 4.4 refrigerator temperature Resistive losses Ruby slabs S-BAND shown in Fig signal frequency signal power slowing factor stagger tuning Stagger-tuned maser thermal short circuit traveling wave maser ture TWM equivalent input TWM signal TWM's uniform magnetic field variable attenuator Venus DSS TWM VSWR X-Y RECORDER