PSN-L Email List Message

Subject: Re: Mars Polar Lander "microprobe" accelerometers
From: Peter & Beth pho@...........
Date: Wed, 15 Dec 1999 22:24:48 -0500


We do this all the time in the ham community. For more info see:
http://www.aprs.net  or look up APRS at  http://www.tapr.org .
Peter

Doug Sutherland wrote:

> Speaking of GPS, today I did my first real mobile test of my live GPS
> "DougTracker" data feed. I was sitting in my car in cupertino, with my
> wearable computer connected to the net via 2.4Ghz wireless radio modem
> (metricom). The system was able to send a position fix every 3 seconds
> to my home server 20 miles away, updating a web page that tracks my
> location. Not too shabby for a measly 28.8kb connection. And I am
> amazed at the ease of software development using java remote method
> invocation APIs. Truly a peice of cake. The really cool thing is that
> metricom is upgrading their network to 128kb this summer. That means
> dual channel ISDN speed, no wires, anywhere in the SF bay area!
>
> Ted wrote:
>
> [snip]
> > ... GPS guidance device that is mounted in the nose of an 155 mm howitzer
> [snip]
> >It has been tested to 20,000 g's of acceleration and launch shock.
> [snap]
>
> Wow. I am speechless. That is truly amazing.
>
> _____________________________________________________________________
>
> Public Seismic Network Mailing List (PSN-L)
>
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We do this all the time in the ham community. For more info see: 
http://www.aprs.net  or look up
APRS at  http://www.tapr.org .

Peter

Doug Sutherland wrote:

Speaking of GPS, today I did my first real mobile test of my live GPS
"DougTracker" data feed. I was sitting in my car in cupertino, with my
wearable computer connected to the net via 2.4Ghz wireless radio modem
(metricom). The system was able to send a position fix every 3 seconds
to my home server 20 miles away, updating a web page that tracks my
location. Not too shabby for a measly 28.8kb connection. And I am
amazed at the ease of software development using java remote method
invocation APIs. Truly a peice of cake. The really cool thing is that
metricom is upgrading their network to 128kb this summer. That means
dual channel ISDN speed, no wires, anywhere in the SF bay area!

Ted wrote:

[snip]
> ... GPS guidance device that is mounted in the nose of an 155 mm howitzer
[snip]
>It has been tested to 20,000 g's of acceleration and launch shock.
[snap]

Wow. I am speechless. That is truly amazing.

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Larry Cochrane <cochrane@..............>