[gembud] Using NWX on AFD (and probably other text products) from the tgftp server

For the record, found for raw text messages pulled from NOAA tgftp server 
you need to bound each message with a ascii char 001 and 003 respectively 
before either dumping it directly into a GEMPAK file or running it through 
a gempak decoder.  I believe Chiz pointed this out regarding prepping raw 
messages for decoders back in the day.

So in c-shell:   printf "\001\n" > temp.message; cat $RAWMESSAGE >> 
temp.message; printf "\003\n" >> temp.message will "prep" your raw message 
to be handled by GEMPAK decoders or in the case of an AFD which doesn't 
need a decoder can then dumped directly into some $DESTINATIONFILE -- 
which nwx sees through its $GEMTBL/nwx/master.tbl file that holds 
destination and file extension definitions. 

(thanks to Rob Dale for the assist)

Pete

From: gembud-bounces@xxxxxxxxxxxxxxxx [mailto:
gembud-bounces@xxxxxxxxxxxxxxxx] On Behalf Of 
pmanousos@xxxxxxxxxxxxxxxxxxx
Sent: Thursday, June 14, 2012 4:52 PM
To: "gembud@xxxxxxxxxxxxxxxx"@FirstEnergyCorp.com
Subject: [gembud] NWX question
 
Greetings - could not find this or similar on GEMBUD archives.   

Question - what needs to be done to a raw text file that doesnt seem to 
require a decoder so that it is displayable in NWX? 

Details: 
1. We are pulling AFDs directly from NOAA tgftp server for viewing in NWX. 
 When they arrive they are raw text files (like fxus61.kbox.afd.box.txt). 
 After trial and error and viewing the source code we could get so far as 
to determine these raw text files should eventually land in 
$TEXT_DATA/pub_/AFD/yyyymmdd.ext   

2. Although we did not identify a decoder in $GEMEXE, we are uncertain if 
AFD's or similar require a GEMPAK decoder, nor are we sure if ".ext" is 
literal or it should be AFD.   

3. After copying the file into 20120614.AFD we were unable to get this to 
display in NWX (message is "No data available for FXUS61 BOX in the last 
120 hour(s)." with no error messages in the parent terminal window from 
which we launched NWX. 

Better yet - is there an online resource that explains this? 

Pete 



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