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[aprssig] The best resolution of position from APRS

Brian Riley brianbr at mac.com
Tue Jan 3 16:37:20 UTC 2006


I own three d700's and 2 d7's .... I see on my display list on the  
d700 in my truck here in NWVT (my display has stations from VT,  
Quebec, and nearby NY, Ontario, MA, and NH) has 1/5th to 1/4th of all  
stations shown as d700s and they represent about 1/2 of the mobiles.  
I have seen the numbers steadily increasing over the last three years.

  cheers ... n1bq


On Jan 3, 2006, at 10:33 AM, w9jbl at comcast.net wrote:

> This begs the question of how many APRS users have an APRS-capable  
> Kenwood radio?  I personally know of only one ham who has a KW D-700.
>
> w9jbl
>
> -------------- Original message --------------
> From: "J. Lance Cotton" <joe at lightningflash.net>
>
> > Andrew Rich wrote:
> > > Which begs me to ask. What is the best resolution and how from  
> the APRS
> > > Spec ?
> >
> > The best resolution is to use compressed mode. Unfortunately,  
> several
> > months ago, Bob said that no one should use it at all, lest the be
> > tempted to use it on an Object or Item which wouldn't be decoded  
> by the
> > Kenwoods.
> >
> > If we all used compressed position packets (on all but items and
> > objects), all of our packets would be so much shorter and the 144.39
> > channel could support more users (or rather could better support the
> > existing ones!)
> >
> > And we'd get the advantage of increased numerical precision, if not
> > accuracy (depends on the GPS).
> >!
> > -Lance
> > --
> > J. Lance Cotton, KJ5O
> > joe at lightningflash.net
> > http://kj5o.lightningflash.net
> > Three Step Plan: 1. Take over the world. 2. Get a lot of cookies.  
> 3. Eat
> > the cookies.
> >
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