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 Post subject: ....Only a Test?????
PostPosted: Sun Oct 30, 2011 7:29 pm 
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Nationwide EAS test on Tuesday.....

Wonder how much of this will be carried on 155.475...

Eric
KB7DQH

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 Post subject: Re: ....Only a Test?????
PostPosted: Mon Oct 31, 2011 7:09 am 
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http://www.fcc.gov/encyclopedia/emergen ... nwide-test

Nov 9 (Wednesday) 1100 Pacific time


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 Post subject: Re: ....Only a Test?????
PostPosted: Mon Oct 31, 2011 6:43 pm 
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I've always wondered what happened to the 640 and 1240 stations like KFI and KGY and others. Did they sign off and another transmitter take over the CONELRAD or were they the originating stations, 640 being a clear channel. We had an old 62' Mercury wagon that had the hash marks at 640 and 1240. I think I asked my dad and he didn't know...

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 Post subject: Re: ....Only a Test?????
PostPosted: Mon Oct 31, 2011 10:46 pm 
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icom1020 wrote:
I've always wondered what happened to the 640 and 1240 stations like KFI and KGY and others. Did they sign off and another transmitter take over the CONELRAD or were they the originating stations, 640 being a clear channel. We had an old 62' Mercury wagon that had the hash marks at 640 and 1240. I think I asked my dad and he didn't know...


The same concept exists its just no longer on two fixed frequencies. The modern equivalent is an LP-1 station that covers an EAS Local Area. In some areas the LP-1 stations may be fed from state sources originating on VHF/UHF frequencies.

This link has a good diagram and explanation: http://transition.fcc.gov/pshs/techtopics/techtopics21.html


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 Post subject: Re: ....Only a Test?????
PostPosted: Tue Nov 01, 2011 8:27 am 
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actually I was thinking what happened during the days of CONELRAD if a 640 or 1240 had to sign off, what took over on that freq and from where?

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 Post subject: Re: ....Only a Test?????
PostPosted: Tue Nov 01, 2011 8:28 pm 
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.... They didn't "completely" sign off... but would periodically transmit
civil-defense related stuff... everybody else had to cease transmitting.
It was thought Soviet bombers would utilize broadcast signals to DF their targets... so in the event of an attack this system was devised to
CONtrol ELectromagnetic RADiation...

Some neato vids on Youtube...

Eric
KB7DQH

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 Post subject: Re: ....Only a Test?????
PostPosted: Thu Nov 03, 2011 6:36 pm 
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thanks

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 Post subject: Re: ....Only a Test?????
PostPosted: Sat Nov 05, 2011 5:55 am 
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I've heard from a few old timer engineers that during the CONELRAD era, there was some AM transmitters that didn't like being turned on and off constantly and had some failures.

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 Post subject: Re: ....Only a Test?????
PostPosted: Wed Nov 09, 2011 4:37 pm 
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I forgot to listen in on NLEEC, anyone else? I was watching TMC and it did a pre alert and then took over for 30 sec or so. The audio seemed ok Some others had different results

http://www.tri-cityherald.com/2011/11/0 ... ystem.html

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 Post subject: Re: ....Only a Test?????
PostPosted: Wed Nov 09, 2011 5:44 pm 
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Heard it on 155.475 (NLEC) in Bellingham @ 1100 today.

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 Post subject: Re: ....Only a Test?????
PostPosted: Thu Nov 10, 2011 6:16 pm 
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Oregon failed the test thanks to a software decoder failure at OPB....

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