[aprssig] Just my 2 cents worth on smart beaconing

Julian, G4ILO julian.g4ilo at gmail.com
Wed May 25 04:14:26 EDT 2011

Not wishing to be too controversial but I thought that APRS was not a
position tracking system and the main purpose of sending position
beacons was only to show you are in a particular area. I never use
smart beaconing and find a beacon interval based on distance travelled
or time elapsed to be adequate in all situations.

Julian, G4ILO
G4ILO's Shack: www.g4ilo.com

On 25 May 2011 02:31, Wes Johnston, AI4PX <wes at ai4px.com> wrote:
> My point was that most people want to set their fast beacon speed too high
> and never really get out of corner pegging mode.
> Wes
> ---
> The world needs more geniuses with humility because there are so few of us
> left.
> On Tue, May 24, 2011 at 19:05, Tom Russo <russo at bogodyn.org> wrote:
>> On Tue, May 24, 2011 at 03:14:38PM -0400, we recorded a bogon-computron
>> collision of the <wes at ai4px.com> flavor, containing:
>> > .  The "fast beacon" rate is the point at which your tracker goes
>> > from "transmit on a turn" mode to "beacon every xx miles" mode.
>> No, the fast speed is where your tracker starts beaconing at the fast
>> rate,
>> i.e. a purely timed beacon at higher rate.  Only between slow and fast
>> speeds
>> does SmartBeaconing work in "beacon every xx miles" modulo corner pegging,
>> and
>> then only by scaling the fast beacon rate by the ratio between "fast
>> speed" and
>> your current speed.  Above fast speed, corner pegging is disabled and
>> everything's just timed at a fixed rate.
>> Look again at the algorithm on http://www.hamhud.net/hh2/smartbeacon.html,
>> it
>> doesn't jibe with some of what you've said here.
>> --
>> Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
>> Tijeras, NM  QRPL#1592 K2#398  SOC#236
>>  http://kevan.org/brain.cgi?DDTNM
>>  "The truth will set you free, but first it will piss you off."
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