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[aprssig] Beacon rate while travelling (was: Help!! TH-D700 reset)

Robert Bruninga bruninga at usna.edu
Tue Nov 27 18:13:14 UTC 2007


Yes, I learned the hard way during a 2 week trip through the
wilderness of Utah, AZ, NM and western CO.  I set my rate to
onec every 5 minutes since they had good coverage and I was not
doing anythign special.

But after missing someone driving right past me, is when I
realized that at a joint speed of 150 MPH and 5 minute beacons,
and reliable simplex range of 6 miles or less, that we did not
even hear each other's voice-alert packets!

> Another consideration:
>   When traveling in areas where coverage is poor ( western
Nebraska, S
> Carolina), I have used a 1 minute rate.  Not knowing when a 
> digi will be in
> range, nor for how long, due to fading, the 1 minute rate 
> helps "insure"
> hitting something.    If there is coverage close to the 
> highway, the mobile
> will travel through the area quickly and the "heavy traffic"
period is
> relatively short.  However, changing the rate for conditions 
> is important to
> remember.
> 
> 73, Steve, K9DCI
> 
> --- Bob Burns W9RXR <k4rxr_ at rlburns.net> wrote:
> 
> > At 02:36 PM 11/22/2007, Bob Bruninga wrote:
> > >They are 1 minute CQ's for a nice local chat.  Maybe I
should have 
> > >recommended a 1 minute rate via ONE hop.
> > 
> > Yes, that does clarify things. As a beacon announcing "I'm 
> here!" to 
> > other APRS users in the immediate area, a 1-minute rate
makes some 
> > sense...as long as it doesn't clog up the network by 
> digipeating over 
> > multiple hops.
> > 
> > >I agree, on arrival in any city or high density area, then
it is 
> > >time to cut back, and especially when parked.  So, yes, I 
> agree that 
> > >1 minute is usually excessive for routine operations.
> > 
> > This is where the problem lies. Too many operators think
APRS is a 
> > set-and-forget mode of operating. I see beacons locally
coming from 
> > people who just aren't paying attention to what they are 
> > transmitting--home stations  beaconing at a 1-minute rate or
mobile 
> > stations transmitting a status text stating their listening 
> > frequency, but you can't raise them there. Filling up the
frequency 
> > with incorrect or redundant information is as bad, I think, 
> than not 
> > beaconing at all.
> > 
> > Any recommendations made by experienced users, especially 
> with regard 
> > to beaconing practices, really need to be qualified with
some 
> > explanation and education. How many APRS users don't
subscribe to 
> > this list and benefit from all the wisdom to be had here?
How many 
> > APRS users do subscribe to this list and don't understand
why a 
> > 1-minute rate is good in some situations and bad in others?
> > 
> > Bob...
> > 
> > 
> > _______________________________________________
> > aprssig mailing list
> > aprssig at lists.tapr.org
> > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> > 
> 
> 
> 
>       
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