Weather alert radio question

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dwntwn317

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A couple of days ago I posted a question in Severe Weather forum about an issue I am having with my Reecom R1650 alert radio. I tried to post the same question here, but being new, it was reviewed, and for some reason, not posted. Well, my issue could be related to Indy NWS and the signals they send out, so hopefully this message will post to this forum. My R1650 has an "Effective time" clock, which counts down until the alert expires. This information is said to come within the signal from NWS. This function is billed as "With Event Effective Time Display (Auto-count down function) !" My issue is I believe this function isn't working correctly, but I need some central Indiana folks with other weather radios to help me out.

Today was a great day to show what is happening:

NWS issues a tornado watch at 3:30PM Indy time. I come home and end up going into the room where the radio is. I notice the LED light is flashing, and "Tornado Watch" is displayed. At this time, the effective time is at 1:24, and is counting down correctly. This tells me that the tornado watch alert has only one hour, 24 mins before it is over. Once this clock hits 0:00, my LED will turn off, and the display will revert back to normal (Day/Time).
So I log onto NWS because I have been hearing news reports we could have nasty weather all through the evening hours till early Saturday. I find Tornado Watch #143, that shows it was issued at 3:30PM. I deduct that the original effective time the radio showed was likely 1:30ish given when I checked the radio, etc.. Either way, the radio will shut off the alert features (LED and message display) a little after 5PM. The kicker is: The watch is good until 11PM! This means that anyone who were to check my radio after 5PM won't know anything about a tornado watch that lasts till 11PM. The only way they would know what was going on is if they were to look at past alerts, or tune into radio/TV.

So, what I need to know is this: For those with other brand SAME weather alert radios, will your LED lights and message displays turn off prior to the 11PM expiration of today's tornado watch? Or, will they stay on till a signal is sent out by Indy NWS?

I am also keeping my Pro-95 in WX stand-by, to see if NWS sends out additional alerts and if my R1650 is picking those up. Thanks for any helps anyone can provide!
 

SCPD

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All of my SAME Weather Alerts show the watch count down in the 5 hour window most watches are issued in 5 to 6 hour blocks the weather alert should show this watch when issued and be counting down from 5 hours sound like either it is not getting all the info or there is a problem with it I have several different name brands all show 5 hours are you getting those alerts from 162.550 out of Indy If so you might let NWS know about it during a good weather day for a while NWS was wanting info on weather alert radios and how they where working with there system.
 

UPMan

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The purge time in the SAME message header is max 6 hours (per the standard). So, if an event is for a longer duration, they should reissue it periodically.

So, either your receiver is not decoding properly (or has an algorithmic problem) or the NWS did not set up the message correctly when they issued the warning, or they expected to either renew or cancel the event at or before 5 pm.
 

dwntwn317

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Thanks for the comments. My guess is that it is Reecom programming that is at fault. If several name brands are counting down the correct time, I can't see it being an NWS issue. I did find a form on-line that I will send to them. I will also be sending Reecom an e-mail, though I have no idea what, if anything, the will do. Thanks again for the comments.

It appears I will be getting an new radio soon. Any suggestions? I really like the idea of the Skywarn freq. scanner that Radio Shack offers on one of their radios.
 

rdale

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The weather alert went out fine from the NWS:

WWUS63 KIND 071932
WCNIND

WATCH COUNTY NOTIFICATION FOR WATCH 143
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
332 PM EDT FRI MAY 7 2010

INC005-011-013-015-021-023-027-031-035-045-055-057-059-063-065-
067-071-079-081-083-093-095-097-101-105-107-109-119-121-133-135-
139-145-153-157-159-165-167-171-080300-
/O.NEW.KIND.TO.A.0143.100507T1932Z-100508T0300Z/


That's a list of county codes, then the "T0300Z" means it is set to expire at 0300Z (11pm EDT.)
 

XTS3000

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If you have a signal generator, then generate a .wav file for a 6 hr tornado warning and using the signal generator hooked up to the WX receivers external antenna jack and see if it's working correctly.

Study up on the SAME format, and generate your own watches/warnings to test any given WX receiver.

To generate the SAME audio file for testing: NOAA SAME (audio) Encoder/Decoder 1.1 - Drew Burden

Good luck
 

UPMan

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The weather alert went out fine from the NWS:

WWUS63 KIND 071932
WCNIND

WATCH COUNTY NOTIFICATION FOR WATCH 143
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
332 PM EDT FRI MAY 7 2010

INC005-011-013-015-021-023-027-031-035-045-055-057-059-063-065-
067-071-079-081-083-093-095-097-101-105-107-109-119-121-133-135-
139-145-153-157-159-165-167-171-080300-
/O.NEW.KIND.TO.A.0143.100507T1932Z-100508T0300Z/


That's a list of county codes, then the "T0300Z" means it is set to expire at 0300Z (11pm EDT.)
That is not what would have been sent over NOAA. Wrong format (see Specific Area Message Encoding - Wikipedia, the free encyclopedia). SAME does not include the actual end time of the event (as is indicated in the message above). It only indicates the exact time of issue and the duration of the event.
 

rdale

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Understood - but from what I understand the SAME code is directly generated from the WCN product (i.e. there isn't a person sitting at the keyboard and typing out SAME codes.)
 

scanchs

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The purge time in the SAME message header is max 6 hours (per the standard). So, if an event is for a longer duration, they should reissue it periodically.

So, either your receiver is not decoding properly (or has an algorithmic problem) or the NWS did not set up the message correctly when they issued the warning, or they expected to either renew or cancel the event at or before 5 pm.
UPMan,

Now I’m confused! If "the purge time in the SAME message header is max 6 hours (per the standard)", then how does my BC370CRS show 11:59 remaining following a weekly test down here in Charleston? I have wondered why the CHS NWS office would issue a test that's effective for 12 hours ever since I got this receiver, but it is consistent every week. Based on your post, now I’m wondering how it’s even possible. The test message banner on the bottom of the BC370CRS display is there from test time (~11:30 AM) until 12 hours later (~11:30 PM) every Wednesday. Any ideas how that’s happening? :confused:

ScanCHS
 

UPMan

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The field itself allows for 99 hours and 99 minutes...the standard says max 6 hours. I suspect that there must be some divergence between the standard and actual implementation at the encoder.
 
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