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National EAS Test Failures

Just a radio nerd strolling in. I live in Northeast PA and tuned in on the radio to hear whether or not the nationwide EAS test would be a success. I was unsurprised to see that it was, indeed, not.

About 2:00 on the dot, I heard the SAME tones and attention signal. The audio message that followed was VERY garbled. For the first three seconds, I heard the standard "This is only a test" before the man's voice was drowned out by a loud, crunching static. As the test went on, you could hear the Attention Signal and audio message looping from the start again and again amidst the heavy static. To top it all off, toward the end of the audio message...the strongest thing you could understand in all the noise was, of all things, a Big Bopper song going "BOBBA MMM BOBBA MMM MOW MOW" ostensibly relayed from some 50s format station. I wish I was able to tape it.

Scrolling around the dial to hear the tail end of other stations' tests revealed that it was the same garbled audio message that went across the area, not a fault of the first station I listened to (97.9 WBSX).

I can only assume this happened because the audio message was run through tens of thousands of EAS units around the country before finally reaching Scranton. The only thing that today's national test proved was that the EAS system, despite being designed as a national system from the get-go, only seems to work best in local settings...settings where the audio is not passing through tens of thousands of units, being degraded further and further and further.

Evidently, my area wasn't the only one to fail to get the message. Is this mere game of telephone virtually guaranteed to fail in the event of an actual national emergency? Is this a design flaw that was overlooked for fourteen years? If so, shouldn't we consider using the telephone network as a backup instead and relaying national emergency messages via microwave or satellite instead?
 
TomZ said:
JohnnyElectron said:
PBS TV station was the ONLY local to have any semblance of the audio message,...snip...........

In Ohio, this test was a FAIL ! Sure as sh** glad this wasn't a real emergency!

More so: I'm glad this wasn't a government 'take-over' of our....

Well, I'm glad it was only an attempted takeover.

considering how incompetent our federal gub'ment is at other ventures, did anyone really think they were going to be successful at this? I must say, the feds lived up to my very, very, VERY low expectations. I fully expected the entire eastern seaboard to be rebroadcasting WLW's audio before it was all over with.
 
level42 wrote:
No test in Tallahassee, FL...it just didn't air on the LP1 or LP2. They're blaming it on a "board op error"...



Thanks for the confirmation, Chris. I was monitoring one of the Tally FMs - nothing.
 
The Salt Lake City, Utah area PEP did not get a good signal at first, so did not immediately relay it. As designed, the backup from NPR came over KUED-TV.
KSL-Radio (AM-FM), the SP-1 and LP-1, received it and forwarded it, with the entire message intact.

The PEP then received the test from KSL Radio, and began forwarding it, but the crosstalk in the message audio contained a moderately strong data burst which indicated end-of-message, so it stopped, mid-message.
KSL-TV was waiting for the test (on a graphic, with an explanatory lower-third crawl) for two or three minutes, until the PEP signal finally came...not sure why the DASDEC chose to run the later PEP, rather than the earlier KSL-Radio one. So, KSL-TV dropped out when the "phantom" EOM came from the PEP.

I think that the Comcast headend was set to relay KSL-TV. Haven't heard from them yet.
 
WNTIRadio said:
Why can't every station just have a Ku band box to get the national level tests? Or even the states for that matter. Use the daisy chain of stations as a back up in case Iran or North Korea knocks the bird out of the sky. If I can get TV on a little 18" dish, why not do the same thing for EAS for ALL stations?!

Dumb. The whole thing is really dumb. It would be state of the art in 1955, but not now.

Agreed that it is really dumb, but I lose my DISH TV every time it rains. Same for HughesNet. Satellite is not a cure. It would also be very easy for terroriststs to simply jam a satellite. Even I can think of a way to do it very cheaply.
 
How the heck DOES the signal get from Virginia, to the area PEP stations?

And, could it be that the "feedback" was RFI from some nearby AM station near the origination point?
Were they using a POTS phone line??? ;D
 
ustabnassau said:
NYC ran ok....double tones and attention tones under the entire thing. Audio was understandable but had a slight echo.

Proved the relay network worked and turned up the issues that FEMA and FCC needed to see.

Yeah? What might those be?Earmarks for duck flatulence research? ROFL
 
Sure would be nice if we all had been given a little course in how things work.....
Some Google-ing shows it's done via an HF radio system, the FNARS (FEMA National Radio System) coming from the Mount Weather Emergency Operations Center, near Bluemont, Virginia. It's an Automatic Link Establishment (ALE) system.
Here's a look at what appears to be a couple of Granger HF Antennas, just east of the EOC, and north-west of the satellite dishes:

http://maps.google.com/maps?q=Bluem...emont,+Blue+Ridge,+Loudoun,+Virginia&t=h&z=18

I've seen something similar to these, at the Utah State Capitol:
http://www.antenna.be/tci-530.pdf
http://www.antenna.be/tci-550.pdf

Could there have been some strange, daytime ionospheric propogation effects happening, or could the HF relay at Golden, Colorado have been operating on the same frequency, causing the "echo" effect?
 
kenglish said:
...KSL-TV was waiting for the test (on a graphic, with an explanatory lower-third crawl) for two or three minutes, until the PEP signal finally came...not sure why the DASDEC chose to run the later PEP, rather than the earlier KSL-Radio one. So, KSL-TV dropped out when the "phantom" EOM came from the PEP...

My station's DASDEC also held the test until :03. By design, it appears...the test was programmed to be in effect at 2:03pm EST for 15 minutes. After decoding, DASDEC showed the test as a "future alert" and counted down to 2:03, when it relayed it.
 
I'm former radio talent who still keeps an ear on things

I monitored WGN, WLKG-FM (Lake Geneva, WI), WTMJ-TV WISN-TV (both Milwaukee) & the previously-mentioned XM Satelite Radio.

WGN & WISN-TV all cut the voice message short, at the point where the first of the delayed/overlapped headers came in. As mentioned earlier, these EAS units must have interpreted the bursts as EOMs

XM sent no header. They, instead went right into the attention signal. XM also cut the voice message off at the overlap point, before sending the EOMs.

WTMJ-TV ran the entire test, complete with the upper-screen crawl. However, the audio was in the background of regular programming.

WLKG-FM was the only one of the stations I monitored, to have done the test fully & with no other program material (aside from the delayed/overlapping message that everyone seems to have heard).

I'm no expert, & this is only my humble opinion...i think if we can figure out where this overlap came from & correct it, the system would be more successful.
 
An HF link?! How DUMB is that?!?! Again, this was cool in 1955. At least make it some form of DRM HF link so what comes out on the other end doesn't sound like a guy on CB channel 6.

"This is a test... AUUUUUUUDIOOOOOOOO... mud duck..... 10-4... [whistle]... AUUUUDIOOOOOOO"
 
HEY GUYS! Anybody else think this may partially be SAGE's fault??

Read this line from Sage's "Audio Level Service Bulletin":

The “output appears on the input” issue only shows up if the alert is sent in the “automatic relay” mode, meaning the ENDEC starts retransmitting the alert while it is still receiving the incoming alert (this include the EAN). In this mode, if the audio output is excessive, you will hear what appears to be a mix of two different alerts, but what you are hearing is the start of the original alert, delayed by about 20 seconds.

If the PEP station is using a SAGE ENDEC, sends to an LP1 with a SAGE ENDEC, received by local stations using a SAGE ENDEC.

No wonder it was a garbled mess. I would have thought SAGE would have corrected this problem during R&D. Now they have to share some of the blame for a BOTCHED test.
 
Sage Endecs have a huge problem with excessive input levels and very well could be the cause of the problem. However, if you contact the Sage support department, they'll simply send you a pdf showing you how to "pad" down the input rather than fixing the issue in the first place. I'm not a huge fan of these boxes...never have been.
 
grich said:
kenglish said:
...KSL-TV was waiting for the test (on a graphic, with an explanatory lower-third crawl) for two or three minutes, until the PEP signal finally came...not sure why the DASDEC chose to run the later PEP, rather than the earlier KSL-Radio one. So, KSL-TV dropped out when the "phantom" EOM came from the PEP...

My station's DASDEC also held the test until :03. By design, it appears...the test was programmed to be in effect at 2:03pm EST for 15 minutes. After decoding, DASDEC showed the test as a "future alert" and counted down to 2:03, when it relayed it.

Same here...I wondered why it wasn't going through, but it turned out the DASDEC held it until 2:03 PM EST.
 
It looks like the old idea of the bucket brigade relay doesn't work in an era of digital delays and low-bitrate audio. A complete rethink of the distribution method seems to be in order.
 
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