[EAS] Re-writing EAS
Sean Donelan
sean at donelan.com
Sat Dec 10 00:35:49 CST 2011
In practice there are no clean lines between different types of EAS
participants. Adding cell phone towers, university and miltary campus
cable systems allows more geographically targeted warnings than was
previously possible through full-powered broadcasters. While adding
direct broadcast satellite greatly expands the reach of national level EAS
messages beyond the reach of most terresterial broadcasters. It may be
time to get both the old and new stakeholders together and try to re-write
the entire plan.
National EAS participation:
National EAS Particpants must have EAS equipement and carry national
level EAS messages on all programmed channels including required testing
with the following exceptions:
Programmed channels which only simultaneously re-transmit programming of
another EAS participant, by rule or voluntary agreement, including all
national level EAS messages and required tests are not required to be
overridden by a re-tranmission system for EAS messages.
for example: local broadcasters (by rule), regional cable news
channels (by voluntary agreement)
Facilities which only simultaneously re-transmit programming of other
EAS participants, by rule or voluntary agreement, including all national
level EAS mssages and required tests on all programmed channels are not
required to have EAS equipment.
for example: FM/TV translators, cable systems with no local
origination channels and EAS from the "head-end in the sky", community
antenna systems
Non-Participating National (NN) sources are EAS participants which must
carry required tests, and sign-off during a national EAS activation.
Re-transmission sources are not required to handle Non-Participating
National sources differently than Participating National (PN) sources.
for example: a cable system could exclude all broadcast stations (all
EAS participants by rule) from cable EAS overrides without having to track
changes of an individual broadcast station's NN/PN EAS status.
The goal is to minimize the overhead and paperwork required, eliminating
the need for lots of exceptions. For national level EAS activations, an
EAS participant shouldn't be responsible for activating EAS on a channel
being used solely by another EAS participant. However, it doesn't
address the concerns of local emergency officials.
Local EAS participation:
Authorized local officials may request local EAS participants
voluntarily override programmed channels serving the local area for
emergency warnings of imminent danger and testing of the warning system.
for example: EAS should be used for imminent danger. If there is
time to schedule a press conference its probably not imminent danger, and
use of EAS will disrupt normal public information communication channels.
When a programming source's or re-tranmission system's facilities is
operating unattended, scheduled or unscheduled, local EAS participants may
allow authorized local officials to automatically override programmed
channels serving the local area for emergency warnings of imminent danger
and testing of the warning system.
for example: a local broadcast station without a 24x7 newsroom or has
to be abandoned during an emergency
If a re-transmission source does not allow authorized local officials to
override all programmed channels serving the local area for emergency
warnings and testing, it shall not override any programmed channel which
only simultaneously re-transmits a local EAS participant's programming in
the same local EAS area which allows local officials to automatically
override programming when unattended for emergency warnings of imminent
danger and testing of the warning system.
for example: a local cable system or FM/TV translator which no longer
allows local overrides
EAS participants should limit programming interruptions to the smallest
area/audience included in the EAS message using selective alerting and
consumer electronic equipment standards where available.
for example: DTV/ATSC, Cell/GPS, Cable/SCTE, FM/RDBS, etc
Again, the goal is to eliminate the need for per channel exceptions, but
also address the concerns of local emergency officials. It doesn't
require cable systems support selective override or broadcasters support
automatic local emergency messages. But when they do, everyone gets
something. Finally, selective alerting should include the public's
experience and try to reduce the number of EAS interruptions the public
feels are irrelevant to them.
Identification of override source:
Programming sources and re-transmission sources must identify themselves
specifically when interrupting normal programming with emergency warning
information or intrusive tests (e.g. RWT is considered an unobtrusive
test).
The "EAS" originator code should not be translated as "broadcast station
or cable system," suggest using "EAS participant" instead.
Instead of using "We," identify the specific programming source or
re-transmission source outside of the EAS message, for example:
"XYZ Cable interrupts this program for the following message" audio
followed by the EAS headers and message.
"ABCD-TV: " followed by message crawl when overlaid over video
programming.
Name and/or logo displayed while force-tuned to a video details
channel.
Inside an EAS message, EAS participants may refer to themselves
collectively as "we."
The goal is to better identify who is reponsible for what is happening.
Its only going to get more complicated as more programming is transmitted
and re-transmitted through more technologies. Some HD Radio and DTV
stations are re-transmitting out of town stations already. Some
re-transmit the out-of-town EAS messages on some sub-channels, others
don't. Figuring out if an EAS alert is from the local broadcast station
or the out-of-town broadcast station getting very challenging.
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