[aprssig] TNCX setups? (proportaional pathing?)
Robert Bruninga bruninga at usna.eduFri Jul 17 17:20:41 UTC 2009
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Im confused and need help from the TNC-X'ers... Does it have only 4 beacons total, and not a separate BT and four other LOCATION texts? Now I see that this is mixing the FREQ object and the digi data... Also, there appears to be a limit of 255 in the offset variable rpreventing the full implementation of the proportional pathing intervals we used on the KPC3. Beacon 1 inteval (x5s) :00120 Offset :0 (10.min) FREQ OBJECT Beacon 2 inteval (x5s) :00360 Offset :240 (30.min) DIGI data Beacon 3 inteval (x5s) :00720 Offset :120 (60min) DIGI data Beacon 4 inteval (x5s) :00720 Offset :255 (60min) DIGI data Translating the above to MINUTEs I get Beacon 1 every 10m DIRECT Beacon 2 every 30m offset by 20m WIDE1-1 Beacon 3 every 60m offset by 10m WIDE2-2 Beacon 4 every 60m offset by 21.3m SS3-3 Below is how the New-N paradigm sets proportional pathing in a KPC-3 so that the info goes out every 10 minutes locally, every 30 minutes out 1 hop and every 60 minutes out 2 hops (While still only producing 6 packets per hour instead of the 10 noted above). Here is the proper proportinoal pathing: Beacon 1 every 30 offset 0 DIRECT Beacon 2 every 30 offset 10 DIRECT Beacon 3 every 60 offset 20 WIDE1-1 Beacon 4 every 60 offset 50 WIDE2-2 This RESULTS in one packet every 10 minutes, but most of those are direct, and two per hour go via 1 hop to neighboring digis and ONE per hour goes 2 hops. It is important to understand how these are interleaved, and not just brute-forced which produces dupes. But if the 4 beacons have to be shared with the FREQ object, then we need to rethink this in terms of the limitation of the 21.3 miunte offset limit. Maybe he got it right? Once I have corrected these items I'll add these TNC-X settings to the web page: www.aprs.org/fix14439.html Hope that helps. Bob, Wb4APR
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