On Wed, Nov 15, 2006 at 11:05:58PM -0500, we recorded a bogon-computron collision of the <[EMAIL PROTECTED]> flavor, containing: > Okay. So there shouldn't be a PHG statement at the end of the weather > data? That is interesting. I know that UIView doesn't integrate the > PHG in like Xastir does so John (KE4TZN) was simply putting the PHG > statement in the comment portion of the station ID so it would be in there.
Ah. Well it's certainly wrong just to bung it into the comment field. The PHG data belongs in a specific place in the information field; specifically PHG belongs in the "Data Extension" field, right after the symbol code in byte 28 of the packet, according to the spec. No spec-compliant software should be decoding it from the comment field. > I wonder if there is a way to modify the spec to include these > situations? Sigh. The spec is pretty well ossified, although there are a large number of "errata" out there on Bob B's web site. You could always ask on APRSSIG, I guess, but let us know when you before you do so --- I, for one, need to order a new asbestos suit before reading any subsequent traffic over there. > If a digipeater were setup to also be a weather station > you'd definitely want to know the approximate coverage area. Yep. Such a digi should be transmitting extra packets with a station comment (containing a canonical set of information to show its capabilities) and PHG info. It is not enough for it to just burp weather info. This is usually done by programming a set of beacon strings into its TNC to be sent out at infrequent intervals. -- Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/ Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM "And, isn't sanity really just a one-trick pony anyway? I mean all you get is one trick, rational thinking, but when you're good and crazy, oooh, oooh, oooh, the sky is the limit!" --- The Tick _______________________________________________ Xastir mailing list Xastir@xastir.org http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
