[aprssig] dead band - now multiple connects

AE5PL Lists HamLists at ametx.com
Sat May 21 12:50:20 EDT 2005

Another example of using special callsign-SSID's for read-only
applications is javAPRS.  It is configured to log in with the lower case
letter j followed by 8 hexadecimal characters which point to the web
site IP.  While this will be the same across all users of the applet
from that web site, it is unique in that there are no _verified_ logins
with that same callsign-SSID.

APRS-IS does not use AX.25 as a link protocol.  It transports a text
representation of it (TNC2 or AEA format) between clients and servers.
While APRS was designed with AX.25 as the primary link protocol, it is
not restricted to it (note the non-packet experiments on RF as well as
the third-party network format discussion in the spec).  Because of
this, APRS-IS has the ability, which has been used extensively since its
early days, for callsign-SSID combinations which do not conform to


Pete Loveall AE5PL
mailto:pete at ae5pl.net 

> -----Original Message-----
> From: Bill Vodall - WA7NWP
> Posted At: Saturday, May 21, 2005 11:14 AM
> Subject: Re: [aprssig] dead band - now multiple connects
> Keyword here is "which send data".   The existing system 
> doesn't take in to
> account situations where an end use may be using multiple 
> applications with
> different filters.   Maybe there could be a RO flag which 
> would allow multiple
> connections.

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