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Stephen -<br>
<br>
Yeah, poor choice of words. I just want to report temperatures at the
cottage back to home, then occasionally control the cottage's
thermostat from home. Messages exchanged maybe once every 30 minutes,
so it's not a connection in the traditional sense. Nevertheless, I
want to make sure that the one-to-many broadcast includes the two
digipeters that I mentioned so that home and cottage will be included.
Maybe I'm using the wrong tool and APRS isn't what I need?<br>
<br>
MRO<br>
<br>
Stephen H. Smith wrote:
<blockquote cite="mid45678525.1020600@aol.com" type="cite">
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<title></title>
<a class="moz-txt-link-abbreviated" href="mailto:nlsa@nlsa.com">nlsa@nlsa.com</a>
wrote:
<blockquote cite="mid45677D8B.6070707@nlsa.com" type="cite">Dear
friends, <br>
<br>
I know almost nothing about packet radio or APRS so please forgive me
if my question is stupid. My home station (W9IP-1) is near Syracuse,
NY and I'm trying to maintain a telemetry link with our cottage
(W9IP-2) about 35 km away. </blockquote>
<br>
"maintain a telemetry link" ?? <font face="Arial">Unlike
conventional packet, APRS stations don't "connect" to a specific other
station. You just do a one-to-many broadcast to any and all stations
within earshot.<br>
</font><br>
<br>
<blockquote cite="mid45677D8B.6070707@nlsa.com" type="cite">The
terrain
is rough so a direct path doesn't work. There is a good APRS digipeter
(K2AMB-3) near W9IP-1 and another good one (KB2FAF-10) near W9IP-2.
The two digipeters "see" each other very well. The one near W9IP-2 is
also an IGate, which is important because I want the telemetry to show
up on findu's database. <br>
<br>
I would think that ... <br>
W9IP-1's path to W9IP-2 would be APRS,K2AMB-3,KB2FAF-10,W9IP-2 <br>
and that <br>
W9IP-2's path to W9IP-1 would be APRS,KB2FAF-10,K2AMB-3,W9IP-1 <br>
<br>
</blockquote>
<font face="Arial"><br>
<br>
Why are you including your own stations at the end of the path? This
just makes your own (target) station try to digipeat the packet once
more. <br>
Using specific callsigns instead of generic WIDEn-N is a good practice
for something like this since it avoids having transmissions spreading
out in every direction needless generating more QRM. And you are
correct that the directed path from each end will be a mirror image of
the path from the other end. <br>
<br>
I assume from your usage of APRS as the first phrase in the path that
you are using UIview, since all other APRS applications have the
"destination" (any quasi-callsign beginning in APnnnn) in a separate
field or entry from the digipeater path hops. <br>
<br>
<br>
If the device doing the telemetry is a stand-alone TNC rather than a
program running on a PC, the path will be entered into it's hardware
using an ASCII terminal program for setup. It will be something
like: "</font>APRS via KB2FAF-10,K2AMB-3" [Exact syntax will vary
depending on the particular TNC being used.]<br>
<br>
<br>
<br>
--<br>
<br>
Stephen H. Smith wa8lmf (at) aol.com <br>
EchoLink Node: 14400 [Think bottom of the 2M band]<br>
Home Page: <a class="moz-txt-link-freetext"
href="http://wa8lmf.com">http://wa8lmf.com</a> --OR-- <a
class="moz-txt-link-freetext" href="http://wa8lmf.net">http://wa8lmf.net</a><br>
<br>
NEW! TNC Test CD<br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/TNCtest">http://wa8lmf.net/TNCtest</a>
<br>
<br>
JavAPRS Filter Port 14580 Guide <br>
<a class="moz-txt-link-freetext"
href="http://wa8lmf.net/aprs/JAVaprsFilters.htm">http://wa8lmf.net/aprs/JAVaprsFilters.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>
Updated "Rev G" APRS <a class="moz-txt-link-freetext"
href="http://wa8lmf.net/aprs">http://wa8lmf.net/aprs</a><br>
Symbols Set for UI-View, <br>
UIpoint and APRSplus:<br>
<br>
<br>
<br>
<br>
<br>
<font face="Arial"> <br>
</font>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Michael R. Owen, Ph.D.
Northern Lights Software Associates
<a class="moz-txt-link-freetext" href="http://www.nlsa.com">http://www.nlsa.com</a></pre>
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