[aprssig] Lowercase callsigns in AX.25/APRS messages
Andrew P.
andrewemt at hotmail.com
Fri Feb 17 15:58:38 EST 2012
In debugging my APRS client, I have noticed a few (very few) stations using lower case in their callsigns. Is this legal? It's obviously possible, since they are out there.
Since they exist, should my application:
1. Match on their callsign using case-insensitive matching or case-sensitive?
2. Force users of my application to enter their own callsigns in uppercase?
3. Forcibly upshift their callsigns in the headers of forwarded/digipeated messages and/or displayed status tables?
Example received from APRS-IS (I replaced my gateway's callsign with XXXXXX):
}kc2yu-sn>APKRAM,TCPIP,XXXXXX*:/171917z4041.78N/07359.46W$sn
Just curious how to handle these.
Andrew Pavlin, KA2DDO
Sent from my Verizon Wireless BlackBerry
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