🚀 go-pugleaf

Thought I'd post for the curious the message format, and protocol used
for EAS/SAME...
Source for this was http://members.xoom.com/bg4/sk_fips.htm#top
More info, like county codes is there.

EAS/SAME weather alert data transmission information:          
-----------------------------------------------------
 
          Data Format                   NWS Frequencies
------------------------------         -----------------
AFSK    520.83 bits per second         162.400   162.425
        Mark    2083.3 Hz              162.450   162.475  
        Space   1562.5 Hz              162.500   162.525
        7+1 bit ASCII Code             162.550
    
Data sentence is transmitted 3 times with 1 second pauses,
Attention tones sent, then alert message,
End sentence is transmitted 3 times with 1 second pauses.
--------------------------------------------------------------------
EAS/SAME protocol. (data sentence)
    
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
 ^^^^^^^^
[PREAMBLE] This is a consecutive string of bits (sixteen bytes of AB
hexadecimal [8 bit byte 10101011]) sent to clear the system, set AGC
and set a synchronous decoder clocking cycles. The preamble must be
transmitted before each head and End Of Message code.
    
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
          ^^^^
ZCZC- This is the identifier, sent as ASCII characters ZCZC- 
      to indicate the start of ASCII code.
    
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
               ^^^
ORG- This is the Originator code and indicates who originally
     initiated the activation of the EAS. (note 1)
    
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL
                   ^^^
EEE- This is the Event code and indicates the nature of the EAS
     activation. The event codes must be compatible with the codes 
     used by the NWS (WRSAME). (note 2)
    
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
                       ^^^^^^
PSSCCC- This is the Location code (area affected by the EAS alert.) 
        There may be 31 Location codes in an EAS alert. 

1st     P defines county subdivisions as follows: 0 = all of a county,
Digit   1 = Northwest,     2 = North, Central,    3 = Northeast, 
        4 = West Central,  5 = Central,           6 = East Central, 
        7 = Southwest,     8 = South Central,     9 = Southeast. 
            
2nd/3rd Each state is assigned an SS number. (note 3)

4th     Each county is assigned a CCC number. 
5th     A CCC number of 000 refers to an entire State or Territory. 
6th   
    
There can be up to 31 FIPS (Location) codes in an EAS message.  
Each code will be in 'PSSCCC' format.  These codes are separated by the 
'-' character, and the *last* FIPS code is followed by the '+'.
 
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
                              ^^^^
TTTT- This indicates the valid time period of message in 15 minute
      segments up to one hour and then in 30 minute segments beyond 
      one hour; i.e., +0015, +0030, +0045, +0100, +0430 and +0600.
   
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
                                   ^^^^^^^
JJJHHMM- This is the day in Julian  day (JJJ) of the year and the 
         time in hours and minutes (HHMM) when the message was first
         sent using 24 hour Universal Coordinated Time (UTC). 
  
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
                                           ^^^^^^^^
LLLLLLLL- This is the ID of the transmit station or NWS office.
  
[PREAMBLE]NNNN-
          ^^^^
NNNN- This is the End of Message (EOM) code sent as a string of four
      ASCII N characters.
--------------------------------------------------------------------
Note 1: The only originator codes are:
    
Emergency Action Notification Network EAN
Primary Entry Point System            PEP
National Weather Service              WXR
Civil authorities                     CIV
Broadcast station or cable system     EAS 
 
Note 2: The following Event (EEE) codes are presently authorized:
    
Nature of Activation Events         Codes
    
Emergency Action Notification    (National only) EAN
Emergency Action Termination     (National only) EAT
National Information Termination (National only) NIC

National Periodic Test        NPT
Required Monthly Test         RMT
Required Weekly Test          RWT
    
Tornado Watch                 TOA
Tornado Warning               TOR
 
Severe Thunderstorm Watch     SVA
Severe Thunderstorm Warning   SVR
Severe Weather Statement      SVS
Special Weather Statement     SPS
   
Flash Flood Watch             FFA
Flash Flood Warning           FFW
Flash Flood Statement         FFS
Flood Watch                   FLA
Flood Warning                 FLW
Flood Statement               FLS
    
Winter Storm Watch            WSA
Winter Storm Warning          WSW
Blizzard Warning              BZW
   
High Wind Watch               HWA
High Wind Warning             HWW
Hurricane Watch               HUA
Hurricane Warning             HUW
    
Tsunami Watch                 TSA
Tsunami Warning               TSW
Evacuation Immediate          EVI
Civil Emergency Message       CEM
Practice/Demo Message         DMO
Administrative Message        ADR 
-----------------------------------------------------------
Note 3: The State  FIPS number codes (SS) are as follows. 
     
State FIPS# State FIPS# State FIPS# State FIPS# State FIPS#
  AL   01     HI   15     MA   25     NM   35     SD   46
  AK   02     ID   16     MI   26     NY   36     TN   47
  AZ   04     IL   17     MN   27     NC   37     TN   48
  AR   05     IN   18     MS   28     ND   38     UT   49
  CA   06     IA   19     MO   29     OH   39     VT   50
  CO   08     KS   20     MT   30     OK   40     VA   51
  CT   09     KY   21     NE   31     OR   41     WA   53
  DE   10     LA   22     NV   32     PA   42     WV   54
  FL   12     ME   23     NH   33     RI   44     WI   55
  GA   13     MD   24     NJ   34     SC   45     WY   56
  Dist of Columbia 11      
 ------------------------------------------------------------------
Complete message format:                                   
   
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
(one second pause)
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
(one second pause)
[PREAMBLE]ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-
(at least a one second pause)
(transmission of 8 to 25 seconds of Attention Signal)
(transmission of audio, video or text messages)
(at least a one second pause)
[PREAMBLE]NNNN
(one second pause)
[PREAMBLE]NNNN
(one second pause)
[PREAMBLE]NNNN
(at least one second pause)
-------------------------------------------------