Order Tray | Contact Us | Home | SIG Lists

[aprssig] Balloon Launch Check-list.... jet stream floater coming to eastern US soon.

Curt, WE7U archer at eskimo.com
Mon Sep 26 21:04:02 UTC 2005


On Mon, 26 Sep 2005, VE7GDH wrote:

> Brian N1BQ wrote on Sept 26 2005
>
> > I realize there is something here that I do not understand. What is
> > to be gained by starting with a decremented
> > WIDEN-N path like WIDE2-1 as opposed to using WIDE1-1? They both
> > have  one hop left ... what am I missing?
>
> What you are missing is that a beacon sent via WIDE1-1 from a balloon will
> not only set off all of the WIDEn-n digis, but all of the "home fill-in"
> WIDE1-1 digis as well. Using WIDE2-1 will drastically cut down on the QRM.
> The only reason for the WIDE1-1 digis is to help mobiles reach WIDEn-n
> digis. That shouldn't be needed when beaconing from a balloon.

Until you get near the ground, in which case it could suddenly
become essential.  An OpenTracker could be set up to change paths
based on altitude, speed, etc, so that you could go to a
wide1-1,wide2-1 or wide1-1,wide2-2 path when near the ground to make
the payload easier to find.

--
Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
"Lotto:    A tax on people who are bad at math." -- unknown
"Windows:  Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me:  I picked the coordinate system!"




More information about the aprssig mailing list