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As an I-gate sysop, there is only one way an F call will appear from the Internet to RF is if they are using a valid call pass, Now for those of us that use Linux the code for such is freely available and is distributed with both APRSD & XASTIR (possibly others) so for instance..<BR>
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callpass VK7FXXX<BR>
Passcode for VK7FXXX is 4791<BR>
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Now there is nothing preventing any person Amateur or otherwise from receiving APRS data, but this is not the issue, it the transmission coming most likely from an iPhone/Android application or a PC. the F call in this instance should ONLY enter a call pass of -1 (or left blank if that is what the client prefers) <BR>
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There was much discussion a while back on the javAPRSSvr mailing list (this is the software used by the CORE & T2 servers and also by some I-Gate sysops, myself included) on developing a better way to authenticate a users credentials, there was talk of using SSL certs but the maintenance would be horrendous! not to mention breaking compatibility with older APRS clients like UI-View etc... So this was soon knocked on the head as being to time consuming to maintain and implement, after all this is a hobby not on-line banking!<BR>
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So my take on this is that whilst the LCD states what is does for each grade of licence, we are obliged to adhere to them, of course there will be a minority that won't but you get that with any rules & regs! <BR>
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I for one will not be implementing any such "filtering" to catch out any possible breach of license, I only have the APRS spec ALIAS's set and that's for nogate/rfonly/nocall I certainly don't have the time to sit and monitor every packet that is transmitted within range of my I-Gate!<BR>
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-- <BR>
Scott Evans <<A HREF="mailto:scott@vk7hse.hobby-site.org">scott@vk7hse.hobby-site.org</A>>
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