[EAS] EOM

[Marcos O'Rourke]

If a station forgets to send and EOM your encoder will terminate the message at the end of the 2 minute time and send it's own EOM (if you're forwarding it over the air).

The issue that Mr. Otto mentioned was limited to EAN messages only. Those have no time limit.

Example: the LP-1 station in our area sent an RMT and the operator forgot to send the EOM before resuming programming. All the stations in the area carried the LP-1 station's programming for 90 seconds until their EAS units timed out and sent their own EOMs.

--
Marcos O'Rourke, CBRE, CBNT
Engineering
K-Wave_Radio_Network

Chair
Orange_County_EAS_LECC

On Thu, Jan 24, 2013 at 10:59 AM, Otto, Ken <OttoK at brevardcc.edu> wrote:
>Steve asked:

><snip>

>What happens if the EOM is missing from an otherwise valid EAS message?  I would assume the 2 minute time-out would terminate the message, when the EAS participant is operating in the auto mode.

><end snip>

>An EOM is not automatically sent and this is something a lot of stations learned with the National EAS Test done in 2011.  On an EAN message such as that test the EOM was missed in some locations because of issues with some stations not having the proper audio levels for their new equipment.

>The default audio settings for one of the vendors had the audio in the digital format at such a high level it was feeding back onto input circuits (bleed over) and being decoded again.  Some stations did not understand the vendor's instructions for audio setup until after the test was completed.  So in this instance the test was reactivated "seeing" the beginning of the message again.  Upon completion of the test these stations were still transmitting the received audio from their LP1 station.

>In order to terminate the test a RWT (Required Weekly Test) had to be issued which completed with the proper EOM returning the station to program audio.

>Ken

>Kenneth Otto, WBCC-TV
>Broadcast Operations Engineer

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