Configuration The major units of the AN/SPS-67(V)1 and (V)3 radar  sets  are  shown  in  figure  2-1  and  figure  2-2 respectively.  As  you  can  see,  there  is  only  a  slight difference  between  the  AN/SPS-67(V)1  and  the AWSPS-67(V)3  versions.  Think  back  to  the  basic block diagram of a pulse radar in chapter 1 (fig. 1-4). Relate the function blocks in figure 1-4 to the basic units shown in figure 2-1. If you understand the basics, you’ll find  that  no  matter  how  many  special  operating functions a radar has, the basic system is still the same. The   receiver-transmitter   and   video   processor components  of  the  AWSPS-67(V)  bolt  to  the  same bulkhead foundations used for the AN/SPS-10 series components.  The  remaining  components  mount  in  the same area of the units they replace, although they may or may not have the same shape as the AN/SPS-10 components. The dummy load mounts on the output of the receiver-transmitter unit. SIGNIFICANT   INTERFACES.—   Although radar  systems  provide  valuable  information  by themselves,  the  interface  of  that  information  with  other warfare  systems  is  critical. The  AN/SPS-67(V)1  meets  interface  requirements of  the  following  equipment: Electronic   Synchronizer,   AN/SPA-42   or AN/SPG-55B Blanker-Video Mixer Group, AN/SLA-10( ) IFF Equipment Indicator  Group,  AN/SPA-25(  )  or  equivalent Synchro  Signal  Amplifier,  Mk  31  Mod  8A  or equivalent The  AN/SPS-67(V)3  meets  interface  requirements for  the  following  additional  equipment: Shipboard   Emission   Monitor-Control   Set, AN/SSQ-82(V)  (MUTE) Data  Multiplex  System,  AN/USQ-82(V) Signal Processor   Converter   Group, OL-191(V)5/UYQ-21(V) Command  and  Decision  System,  Mk-2 Gyro  Digital  Converter,  P/O  Mk-38/39  and ACTS Mk-29 Surveillance  and  Control  System,  AN/SPY-1 FOR THE MAINTAINER.—  The  AF/SPS-67(V)  is a solid-state replacement for the AN/SPS-10 radar system. Miniature  and  micro-miniature  technologies  are  used throughout the radar set. It is more reliable and has better logistical support, with 92 percent of its construction being Standard  Electronic  Modules  (SEM). The Built-in-Test (BIT) microprocessor sub-assembly uses on-line performance sensors to decrease the chance of operating the radar with an undetected fault. Using BIT circuitry  during  normal  operation  will  not  degrade  system performance, nor will faulty BIT circuitry affect system performance. When system failures  do occur, you can use BIT to isolate 95 percent of the possible faults to a maximum  of  four  modules  within  the  receiver-transmitter or video processor. BIT  circuitry  uses  light-emitting  diodes  (index indicators) at certain test points to indicate the locations of faults. The condition of the system at each test point is displayed on readout indicators as GO, MARGINAL, or NO-GO. In addition, the BIT subsystem provides an interactive test mode that permits you to monitor certain test  points  while  making  level  or  timing  event adjustments. Power and voltage standing wave ratio (vswr)  are  monitored  on  an  on-line  basis.  The  BIT subsystem  also  automatically  tests  itself  periodically  by going  into  a  self-check  mode. Maintenance The  AN/SPS-67(V)  radar  set  operates  continuously during  the  ship’s  deployment.  The  responsibility  for  the organizational level maintenance falls on the ship’s Electronics  Technicians,  (NEC  ET-1507.) Organizational   level   maintenance   consists   of preventive   maintenance   (PM)   and   corrective maintenance  (CM).  PM  is  performed  according  to maintenance  requirement  cards  (MRCs)  developed  for the AN/SPS-67(V) system. PM at this level includes checks  of  operational  status  and  filter/equipment cleaning.   CM   is   performed   according   to   the AN/SPS-67(V)   technical   manual   procedures,   and includes  removing  and  replacing  chassis-mounted  piece parts,  modules,  assemblies,  and  sub-assemblies. Repairable   modules,   assemblies,   and sub-assemblies  are  returned  to  the  depot  according  to Navy  supply  procedures. AN/SPS-64(V)9 The AN/SPS-64(V)9 radar is a two-dimensional (2D)  navigation/surface  search  radar  used  as  a  primary radar on small combatants and various non-combatant 2-3