[Milsurplus] Radar simulator

[WA5CAB at cs.com]

I never thought about it when Ben first posted this as he obviously had in 
mind building something like what John was talking about.  I never used them as 
I was always a Comm Tech but the Radar Techs had a simulator that they could 
use for working on the PPI's for example when we were in port and all the 
radars were locked out.  I don't even recall any nomenclature except to say the it 
probably began with "SM-" (but there were several other classes of simulator, 
microphone, antenna, etc.).  If you could find a tube type one it should if 
nothing else be cheap.

In a message dated 2/11/2009 5:24:41 PM Central Standard Time, 
trsnider at cox.net writes: 
>  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.
>>  
>> 
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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