Ed....
DNB Engineering in Fullerton has run CS114 for me on serveral products 
while I observed the testing.  I do not understand the purpose of the "Loop 
circuit impedance characterization" procedure, and neither to they.  This 
data is not used in the conduct of the test.  I have not been able to find 
anyone including a PhD who understands why the procedure has these "Loop 
circuit impedance characterization" steps.  What do you do with this data 
after collecting it?  No where in the test conduct steps 4(3) on page 65 of 
MIL-STD-462D, are any instructions for using this data.  Is there someone 
out there who knows?   Also, what "loop circuit" is the mil std referring 
to?  
   

Jack Gageby, Litton Data Systems
Phone 805-532-5413, Fax 805-532-5697 
Internet email address: [email protected]
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Original Text
From: [email protected], on 6/29/98 4:36 PM:
Hi Group!

I need some help unravelling the calculations associated with the 
MIL-STD-462D Method CS114 Loop Circuit Impedance Test.

Specifically, once you have a table of Forward Applied RF Power (in dBm) 
and Observed Injected Current (in dBuA), how do you arrive at the 
Normalized Amps per Watt?

And what is an "Amp per Watt"? Is that a "mho", a unit of conductance? Or 
is it a unit of admittance, a Siemen?

Anybody out there ever really done this science project?

Ed
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Ed Price
[email protected]
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA.  USA
619-505-2780
List-Post: [email protected]
Date: 06/29/98
Time: 16:36:12
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