[Milsurplus] Radar simulator

[Tony Snider]

 I have a radar simulator here for a commercial furuno radar has lots of good targets. but the down side it generates "bearing pulses"   which is on optical pick up on the antenna and generates  a square wave proportional to antenna speed, and a "heading flash" pulse when the antenna passes 0 deg az if you could figure how to convert these two signals  to S-1, S-2, S-3 & R-1, and R-2 synchro the video would be covered as well as EPROM's
  ----- Original Message ----- 
  From: Military1944 at aol.com 
  To: milsurplus at mailman.qth.net 
  Sent: Wednesday, February 11, 2009 3:25 PM
  Subject: [Milsurplus] Radar simulator


  I have a Radar PPI indicator, which works, scan goes around tube etc etc.

  I want to supply the video i/p with simulated returns. The thing revolves at a given period, stepper motor driven. Each scan from centre to edge take so many microsecs.

  So I need to store the appropriate number of scans per revolution, each scan length can be held in a memory, at some point during each scan a value needs storing to indicate the trace to bright up and paint an image. 

  Fairly straight forward I would have thought but before I reinvent the wheel I was wondering if anyone else has tackled this type of project? 

  Ben G4BXD.



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