[aprssig] Proportional Pathing NOW in KPC3+ trackers
bruninga at usna.edu
Wed Nov 29 19:10:17 CST 2006
> But those BLT settings you show would send a 3-hop
> packet every 6 minutes!
OOPS. Yes, the BLT-4 was supposed to be every 12 minutes.
> Three-hop path routines are not desirable at all in the
> Western USA.
That depends on what you mean by "west". I think in the central
plains states out to the Rockies, that 3 hops is usually OK.
> Also, you need a ToCall something like GPSMV
> (in the LTP settings) to produce a "car" map symbol.
Ah thanks again!
> Maybe more like:
> DIGI OFF
> GPSH 1 $GPGLL
> GPSH 2 $GPRMC
> GPSH 3 $GPRMC
> GPSH 4 $GPRMC
> BLT 1 EVERY 00:01:30 START 00:00:00 CLEAR
> BLT 2 EVERY 00:03:00 START 00:01:00 CLEAR
> BLT 3 EVERY 00:06:00 START 00:02:00 CLEAR
> BLT 4 EVERY 00:24:00 START 00:05:00 CLEAR
> LTP 1 GPSLK ;pickup truck map symbol
> LTP 2 GPSLK VIA WIDE1-1
> LTP 3 GPSLK VIA WIDE1-1,WIDE2-1
> LTP 4 GPSLK VIA WIDE2-2
> Or, you can use the fourth GPSH/BLT/LTP/LT combination as a
> Status text
> packet instead, like:
> GPSH 4
> BLT 4 EVERY 00:59:00 START 00:05:00
> LTP 4 APRS via WIDE2-2
> LT 4 >Courteous digipath, Base:WIDE2-2
> 73, Cap KE6AFE
> > -----Original Message-----
> > From: aprssig-bounces at lists.tapr.org
> > [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Robert
> > Sent: Wednesday, November 29, 2006 07:00 AM
> > To: 'Wes Johnston, AI4PX'; 'TAPR APRS Mailing List'
> > Subject: [aprssig] Proportional Pathing NOW in KPC3+
> > > From: johnstonwes at gmail.com [mailto:johnstonwes at gmail.com]
> > > I once did [proportional pathing] with my... kpc3....
> > > When I was the only one on aprs in my town I had a
> > > beacon rate of 20 seconds out 0 hops, and once a minute
> > > (or three can't remember), went out 2 hops.
> > Wes,
> > Wow! I forgot that the KPC3+'s have had proportional
> > built in all along! I guess I have been so focused on
> > it added to the new trackers coming out, that I overlooked
> > we could be doing with it in existing KPC-3+ trackers.
> > Of course, stand-alone KPC3 trackers are kind-of unpopular
> > days because they are verbose with the LONG NMEA raw GPS
> > instead of the more efficient APRS or Mic-E protocol. But
> > we need to do go after these KPC-3 NMEA trackers and instead
> > "looking down at them" because of their long packets, we
> > encourage them to use the proportional pathing capability
> > they can all do easily!
> > Ill add this to my FIX14439 WEB page:
> > Here would be my recommended settings?
> > GPSH 1 $GPGLL
> > GPSH 2 $GPRMC
> > GPSH 3 $GPRMC
> > GPSH 4 $GPRMC
> > BLT 1 EVERY 00:03:00 START 00:00:00
> > BLT 2 EVERY 00:03:00 START 00:01:00
> > BLT 3 EVERY 00:06:00 START 00:02:00
> > BLT 4 EVERY 00:06:00 START 00:05:00
> > LTP 1 APK383
> > LTP 2 APK383 VIA WIDE1-1
> > LTP 3 APK383 VIA WIDE1-1,WIDE2-1
> > LTP 4 APK383 VIA WIDE1-1,WIDE2-2
> > The result is:
> > A LOCAL packet every minute (is also short, GLL data)
> > A 1 hop packet 2 of every 3 minutes
> > A 2 hop packet 1 of every 6 minutes
> > A 3 hop packet 1 of every 12 minutes.
> > Bob, WB4APR
> > > On 11/28/06, Robert Bruninga <bruninga at usna.edu> wrote:
> > >
> > > Arno,
> > >
> > > > Aprstracker is an open source firmware for PIC based
> > trackers
> > > > like the TinyTrak, KF161-Tracker, or KF163-Tracker.
> > > > ...including... SmartBeaconing...
> > >
> > > Smart beaconing was a great improvement over fixed
> > rates. APRS
> > > was never intended for fixed rates anyway, but was
> > supposed to
> > > use algorithms such as "decaying" to limit duplicates
> > and old
> > > data and provide priority to new and fresh data. I am
> > glad you
> > > have this in your code.
> > >
> > > But there are many user settings for smart-beaconing
> > that need
> > > to be changed depending on the situation and this can
> > sometimes
> > > make things worse instead of better if these settings
> > are set
> > > improperly.
> > >
> > >
> > >
> > _______________________________________________
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> > aprssig at lists.tapr.org
> > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
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