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[aprssig] Low power APRS digi that allows additional data

Andrew Rich vk4tec at tech-software.net
Sun Dec 12 01:19:09 UTC 2010


Dale

If its any help, a guy here has a solar voice repeater

I added an opentracker and a low power HT.

He only watches volts and temp. But you can find some trackers with TELEM.

VK3 also has a site watch service 

- Andrew-

----- Original Message ----- 
From: "Dale Mosby" <dale at archcape.com>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Sunday, December 12, 2010 11:15 AM
Subject: [aprssig] Low power APRS digi that allows additional data


>I help maintain a solar powered repeater in the Oregon coast range. This
> has 4 decent sized solar panels, 2 meter repeater and link radio to
> another repeater. Power is a concern as it is quite cloudy in the
> winter.
> 
> I would like to put an APRS digipeater at the site. I have a crystal
> controlled 2 meter HT that I can use for the APRS radio. This one was
> chosen due to the low power draw. Intent is to fill in some APRS and
> also get data down from the site.
> 
> I would like recommendations on a low power device to serve as the APRS
> digipeater. In addition to supporting APRS I would like to be able to
> send data out. Plan would be to use something like the Atmel AVR
> microprocessor to monitor some site data (light intensity, xmit on time,
> temp) and send that out periodically. Later I'll add some more weather
> data as time allows.
> 
> I know the APRS spec as provision to send arbitrary data. What is
> somewhat unclear is if there is an off the shelf APRS digi unit that
> will allow a properly formatted input stream to be input from some other
> microprocessor tacked on.
> 
> Any pointers or hardware suggestions appreciated.
> 
> 73, Dale, K7FW
> 
> 
> 
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