This sounds like a reasonable approach for an extensive road trip. I saw in the info link you sent earlier regarding the proportional paths...the OT2 does not offer that option as far as I can tell. I will be using the smart beaconing function however and will try that on the same Detroit-Tampa route again in 2 weeks...
Curt KU8L --- In [email protected], "Lynn W. Deffenbaugh (Mr)" <ldeff...@...> wrote: > > The path affects RF only. Digis don't know if/when a packet hits an > IGate, so if there's an un-used path component and they're set up to > respond to it, they will. The APRS-IS duplicate detector will only > propagate the first packet to be introduced, so you'll never know how > many digis and/or IGates subsequently dealt with your packet. > > So, every packet you send with a WIDE1-1,WIDE2-2 will be digi'd by > practically every digi that hears it simplex (WIDE2's typically act on > WIDE1 as well). A simplex-local IGate may have also heard the packet > and gated it to the -IS on your original transmission, but the RF > doesn't know that, so a WIDE1*,WIDE2-2 packet is digid back onto RF. A > wider circle of digis will now (hopefully) hear the packet, especially > WIDE2 digis. They'll repeat it as WIDE1*,WIDE2-1 in a much wider > circle. A bunch more IGates will hear that transmission and their > duplicate detector (the original packet having already propagated to > them) will simply ignore it. You'll never know that happened. But all > of the WIDE2 digis in that much wider circle will hear it for the first > time so they'll also act on it, retransmitting now as a WIDE1,WIDE2*. > By now, you've probably lit up a 300+ mile radius from your actual > location and, in many areas of the country, have hit 6 or 8 or more IGates. > > WIDE1-1,WIDE2-1 is sufficient in most areas, especially near major > cities. When you get out in the sticks (fewer and further between), you > might benefit from WIDE1-1,WIDE2-2, but in many of those areas, just > getting simplex to the first digi is the hard part. If you can make it > there, you'll probably make it to an IGate, even with WIDE1-1,WIDE2-1. > > I really wish we could tell the difference between an original WIDE2-1 > that was used up vs an original WIDE2-2. If I could do so reliably > (really difficult with the proportional pathing people out there), I > could do some serious analysis of whether or where WIDE2-2 was actually > necessary to get to an IGate. > > Of course, one of the major purposes of APRS is mobile awareness. This > is the primary reason I use WIDE1-1,WIDE2-1 in normal situations, but > bump it up to WIDE1-1,WIDE2-2 on road trips. That way, people > monitoring the RF-side, will see my mobile approaching and departing > from a larger distance. But when I'm staying in one area, I drop back > to my normal WIDE1-1,WIDE2-1 so as not to pollute the surrounding > countryside with my day-to-day movements. > > Lynn (D) - KJ4ERJ - T2-135/DR-135 as KJ4ERJ-9 and KJ4OVQ-9 > > captc...@... wrote: > > Thanks Keith and Lynn: > > > > I'll read that info > > > > If I set the 3 hop path, does it ALWAYS go three or will it stop as soon as > > it hits an I Gate? > > > > I thought it stops when it hits the IGate. > > > > Or, if it gets to multiples, and some are digi's, will they keep it going > > out to the path max? > > > > Curt > > > > --- In [email protected], "Keith VE7GDH" <ve7gdh@> wrote: > > > >> Curt KU8L wrote... > >> > >> > >>> I am going to go back and read my info on the difference this makes > >>> in the handling of my beacons... At this point I don't recall the > >>> difference in effect of WIDE1-1,WIDE2-2 and WIDE1-1,WIDE2-1 > >>> > >> The difference is that the first is a three hop path and the second is > >> a two hop path. The recommended path for mobile stations in North > >> America is WIDE1-1,WIDE2-1 but there will be places where a longer > >> path is needed, either to reach another other station on RF, or to make it > >> to an IGate where it is more than two digi hops to the next IGate. > >> > >> 73 es cul - Keith VE7GDH > >> -- > >> "I may be lost, but I know exactly where I am!" > >> >
