CGC #1103

by CGC on November 15, 2011

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                      THE CGC COMMUNICATOR

                            CGC #1103

                   Tuesday, November 15, 2011

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                Robert F. Gonsett, W6VR,  Editor
                

    Copyright 2011, Communications General® Corporation (CGC)

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  DECIPHERING WHAT WENT WRONG LAST WEDNESDAY

  Two articles of interest, both from Radio World.  FEMA IPAWS Program 
Director Manny Centeno discusses last Wednesday's Nationwide EAS Test 
with Leslie Stimson of Radio World (first URL), then RW's Paul McLane 
talks about decoding the mystery data bursts that contaminated FEMA's 
outgoing message.  Those bursts allegedly carried the call sign of one 
particular station:
WCCO in Minneapolis.

  But how could an individual radio station contaminate FEMA's 
outgoing audio (if that was indeed what happened)?  Did FEMA really 
use a distribution circuit that would allow others to contaminate an 
outgoing national message?  Many questions remain to be answered and 
the spotlight is on FEMA.

  That said, part of the test was undoubtedly a success.  Many 
stations were able to relay the first few seconds of the voice 
announcement before the loop back occurred.  How was the audio level, 
noise and distortion?  At least one station in our area had 80% noise.  
We can learn a lot by concentrating on the good part of the test.

  http://tinyurl.com/MannyCentenoOnLoopBack

  http://tinyurl.com/PossibleWCCO-LoopBack


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