[aprssig] "Emergency!" test convention?
KC2MMi kc2mmi at verizon.netWed Jul 21 21:42:20 UTC 2004
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<< I don't know if there are any more Mic-E status codes available,>> Again, if you don't use the real code--you haven't really tested the equipment.<G> Given that APRS equipment is normally linked either to the internet or GPS, and has access to hundreds of atomic clocks from there, you're right about a smaller time window being possible. Once a week...is going to be simply impossible for some testers though. What, Monday? Can't, gotta work late. Who's off, or on schedule, any more?<G> It is nice to know OpenTrack will accomodate a simulated emergency mode--that's a nice idea. Still, you can't test a "blackbox" in the mode, and then have total assurance the box will work the same way in another mode. There's always a change of slipping up on storing a configuration change, etc. But speaking of accurate time being available, that OS we all love to hate requires computers to be within 15 seconds of USNO time or it won't allow them to be updated online. That's the common new standard required for Kerberos authentication schemes. NT has always provided for internet time standards, XP has it built in much more elegantly now. And of course even a $15 Timex usually keeps time within ten seconds a month. I'd gladly settle for a two minute quiet period, at the top of the hour. My watches can maintain that time slot tolerance for most of a year without resetting. One minute off at my end, one minute off at someone else's, and we're still in the two minute slot.<G> Something to consider is that having an authorized test period may actually reduce the incredible number of false emeergency calls that are in the system now. If ops could readily and easily TEST their systems...maybe they'd take care of them?
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