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On 3/14/2011 2:31 PM, Andrew Rich wrote:
<blockquote cite="mid:A6588FC0130C4059947F0E671F0B868E@MACBOOKPRO"
type="cite">
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<div><font size="2" face="Arial">Hello</font></div>
<div> </div>
<div><font size="2" face="Arial">Has anyone done this ?</font></div>
<div> </div>
<div><font size="2" face="Arial">1. Place a PC on the internet in
a remote location.</font></div>
<div><font size="2" face="Arial">2. Place a TNC and radio on the
serial port</font></div>
<div><font size="2" face="Arial">3. Somehow "access" the remote PC
TNC and radio </font></div>
<div><font size="2" face="Arial">4. At the same time supprt
packets into the APRS -IS </font></div>
<div> </div>
<div><font size="2" face="Arial">Remote satellite ground station
supporting packeta and APRS-IS </font></div>
<div> </div>
<div><font size="2" face="Arial">- Andrew - </font></div>
<br>
</blockquote>
<br>
If you are have Internet access at the remote site, this can be
done with just a copy of UIview running on a very minimal PC (I do
it with a low-powered Intel-Atom-based netbook). The remote site
copy of UIview can act as an igate. In addition, UIview's "local
server" feature allows any number of other APRS apps, either locally
or over the Internet via router port forwarding, to use the
radio/TNC combo connected to the first copy of UIview. <br>
<br>
The netbook only draws about 15 watts and is very adequate to run
UIview or similar apps, especially if you don't need fancy map
servers or map displays at the remote location. I have
essentially done this with my TH-D7 handheld connected to the Acer
Aspire netbook which then connected to the Internet via the Wi-Fi of
a nearby McDonalds. <br>
<br>
In a similar approach, I have connected the "tape recording output"
of a Uniden/Bearcat BC-760 scanner to the mic input of the netbook
and used AGWpe with UIview to do an instant receive-only igate.<br>
<br>
<br>
A completely different approach would be to use the available APRS
igate firmware for a Linksys WRT-54GL router. The router is
actually a single-board Linux-powered computer that has serial ports
-- they just aren't brought off the board to the rear panel in a
stock Linksys. With the firmware load, and a little hardware
hacking to bring out the serial ports, you have a low-power
12-VDC-powered "black box" that will go directly from a TNC's serial
port to IP, either local or Internet. <br>
<br>
Note that you have to have the WRT54 with the -L suffix that is the
Linux-based version of this device. The vast majority of WRT-54s
in retail channels are the non -L versions that use a proprietary
operating system that fits in half as much flash memory for
cost-reduction purposes. These units are not adaptable to the APRS
usage. <br>
<br>
<hr size="2" width="100%"><br>
--<br>
<br>
Stephen H. Smith wa8lmf (at) aol.com <br>
EchoLink Node: WA8LMF or 14400 [Think bottom of the 2M
band]<br>
Skype: WA8LMF<br>
Home Page: <a class="moz-txt-link-freetext" href="http://wa8lmf.net">http://wa8lmf.net</a><br>
<br>
===== Vista & Win7 Install Issues for UI-View and Precision
Mapping =====<br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/aprs/UIview_Notes.htm#VistaWin7">http://wa8lmf.net/aprs/UIview_Notes.htm#VistaWin7</a><br>
<br>
*** HF APRS over PSK63 ***<br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/APRS_PSK63/index.htm">http://wa8lmf.net/APRS_PSK63/index.htm</a><br>
<br>
"APRS 101" Explanation of APRS Path Selection & Digipeating <br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/DigiPaths">http://wa8lmf.net/DigiPaths</a> <br>
<br>
<br>
<br>
<br>
<br>
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