RE: [aprsisce] GPRMC sentence in packet (correction?)
> In your case, AE0SS-11 would be given a balloon symbol.Correct
> This is usually the source of some pretty random symbolsposits.
> when the first (or only) packet(s) received from a station are not
> Such stations will typically have a symbol based on their -SSID...Clarification:
That was not the intent of the spec. The SSID method is only used on
receipt of a "position" report that contains no symbol information such as
$GPRMC or other raw NMEA data. It should not be extended to the receipt
of just any "first" packet.
The intent of APRS on the receipt of just "any" packet prior to getting a
position report is to assign the station in the system (station list) with
the big question mark symbol and to give it a "vicinity" position using
the best available information. Such as 1 mile ambiguity around the first
digi in the path. If such a first digi is not obvious, then use the final
digi. Using this ? symbol gives instant recognition that this position
displayed is a "vicinity plot" pending receipt of any better position data
In neither case should there be "random symbols"...
> AE0SS-11>APRS:$GPRMC,151447,A,4034.5189,N,10424.4955,W,6.474,132.5,220Yes, definitely a balloon. Though the AE0SS station must not chop the
NMEA data into two different packets as might appear here..
Hope that helps.