[EAS] FW: False tsunami alarm - analysis of more than one event

[Rich Parker]

  As Paul Harvey would say......

Short answer - it appears that the software which the vendor of our,
ehem, statewide satellite based EAS system uses did not properly strip
out or detect the TSW alert as being a 'test product' - we 'mushrooms'
have not yet been given the 'actual' technical explanation ;)

On the plus side, it apparently doesn't feed the WEA system, nor
trigger the sirens.....just lots of phone calls from perplexed/worried
listeners.

They say it has been 'fixed' - that being said, I stand by my belief
that the systems need a 'lot more padding' in the coding - we're not
constrained by small bandwidth anymore, so redundancy and fail-safe
checks are not as big a burden as when the system was designed in 1997
- presumably over 56k dial-up modems ......

On Mon, May 14, 2018 at 10:06 AM, Rich Parker <rparker1 at gmail.com> wrote:
> One very interesting thing about that is how little 'padding' is
> involved in making sure it is flagged as a 'test'  (the /T).

Rich Parker
Director of Engineering
CoastAlaska