[EAS] The Alaskan EAN

[askenyon at cox.net]

Marcos,

The reason you heard two EOMs is that there is a sperate PEP EAS device 
installed at PEP stations idownstream of, and in addition to, the 
station's EAS device.  The second EOM was generated by the station EAS 
device which "heard" the EAN message as relayed through another 
monitored EAS participant.

Several comments were filed with the Commission regarding the disconnect 
between how EAS devices actually work upon receipt of an EAN and the 
proceedures set forth in the FCC EAS Handbook.  You are correct, the 
real-world doesn't, and perhaps cannot, work in the same fashion as the 
Handbook suggests. Perhaps this will be resolved in future updates.

Al Kenyon
askenyon at cox.net
Alexandria, VA 22309



On Fri, Jan 28, 2011 at 12:27 PM, Marcos O'Rourke wrote:

> I had listened to KFQD's webcast and was able to listen to the test. I
> didn't hear an EAT but I did hear two sets of EOM tones.
>
> My question is: What is supposed to happen between the EOM of the EAN 
> and
> the EAT? I've heard one explanation that there wouldn't be an EOM on a 
> real
> EAN, it would just be the EAT tones again followed by EOM tones. (EAN 
> Header
> -> Audio Message -> EAT Header -> EOM). The FCC EAS Handbook doesn't 
> show
> that, but shows that the EAN and the EAT are separate independent EAS
> events. So are stations supposed to transmit the script on page 13 
> (Step 8
> of National Activation Procedures)?
>
> --
> Marcos O'Rourke, CBRE, CBNT
> Engineering
> K-Wave Radio
> KWVE-FM 107.9, KWVE(AM) 660, KSDW 88.9 FM
>
> Chair
> Orange County EAS LECC
> Inland Empire EAS LECC
>
> P: 714-918-6207
> C: 714-793-8533
> Skype: marcosorourke
>
>
>
> On Fri, Jan 28, 2011 at 08:17, Barry Mishkind <barry at oldradio.com> 
> wrote:
>
>> I've heard a few more reports from Alaska that some of the exercise 
>> went
>> well,
>> especially for those stations and individuals that took it seriously 
>> and
>> learned from last year's test.
>>
>> On the other hand, according to some reports, a few strange things
>> did happen. A wall wart died. An older EAS box failed to respond.
>> In some areas, apparently an RWT occurred during the EAN, and
>> one report said the EAT didn't happen, according to one of the
>> receivers.  The analysis is certainly going on in AK and DC.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>
>
>      ------------------------------
>
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