<font color='black' size='2' face='Arial, Helvetica, sans-serif'>Thanks for the expansion of the historical situation, Keith.
<div><br>
</div>
<div>Yes, running it as a digipeater as well is certainly something the Club could consider if it is useful in the area. </div>
<div>With the digi high up on Gold Hill tower, I'd not heard concerns about needing a fill in digi in the campus area. </div>
<div><br>
</div>
<div>An automatic antenna switching device is really needed due to the limited number of antennas and </div>
<div>transmission lines. I've done some thinking about this that we can discuss if you would like and have time.</div>
<div><br>
</div>
<div>73</div>
<div><br>
</div>
<div>John...</div>
<div>WB4LNM</div>
<div><br>
</div>
<div>
<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Keith Warren <kowarren@bellsouth.net><br>
To: k4ry <k4ry@mailman.eng.auburn.edu><br>
Sent: Thu, Sep 22, 2011 10:10 pm<br>
Subject: Re: [K4RY] Old business items for the meeting today<br>
<br>
<div id="AOLMsgPart_2_f7724f6f-8e32-4efe-b052-a1fcb6f8cc0f">
To All,<br>
<br>
I think what Carey was referring to was "why can't it be set up like
it was before ?"<br>
<br>
This is not a regulatory problem. The way we used to have it set up
was as a Digipeater that repeats what it hears locally on RF. Any
received station is repeated after inserting the K4RY call in the
path and decrementing the WIDE suffix. There was an option to have
a list of calls that could be gated back onto RF locally. This
insures that you know who these people are and they are indeed
validly licenced Amateurs and there is local interest (family &
friends & club members) that would want to see where they are on
APRS. This is also important if you do any ARPS messaging and a digi
where you are forwards the message traffic to the nearest IGate to
the destination station and if the option to Gate that call back to
RF is enabled then the message is digipeated out to local RF.<br>
<br>
For messaging, the system is set up to be bandwidth efficient. Say
I am visiting a distant city and I send a message to a local station
in Auburn. The message is routed via the APRS internet gateway only
to IGates that have heard the destination station within the last
half hour (to insure probable proximity) and it is only gated to RF
if the sending station is on the list of calls that are allowed (so
you know its a licensed ham)<br>
<br>
Our list was probably less than 12 calls and they were all
definitely hams.<br>
<br>
This is of use for those of us that travel with APRS....... nice to
be able to communicate position and messages with the home station
in Auburn or with friends.<br>
<br>
Its also very useful for balloon missions. Many times K4RY was the
destination call in the balloon path which insured that our beacons
would get passed to Auburn locally (monitored via RF on my home
station & others)<br>
and since K4RY was at that time an IGate it made an internet record
of all our packets. Of course the internet raw data complete with
time stamp and path is only saved for 48 hours. If it also exists on
a local RF station's history file that is an extra backup that
doesn't expire. <br>
<br>
Its also very useful for weather nets and spotters. For example
Mike WX4AL , could be in his car observing a funnel cloud. What is
easier .....having him read out some coordinates or looking on the
APRS map and seeing his position plotted ?<br>
<br>
The other issue is Auburn campus especially, is in a fairly low area
and would benefit from a "fill-in" Digi. Normally these stations
have an alias of WIDE1-1 , and only repeat one hop which is enough
to get you out to a real WIDE digi with a better tower and broad
coverage. Why? Because APRS is meant to be a mobile service. If
Carey or I were driving around we would want to see local RF
traffic...... not everyone is sitting at home looking at the
internet. <br>
<br>
The only decent Digi in the county is W4LEE-1 and it is not close
enough to hear the Auburn campus or west Lee County very well . <br>
<br>
Also, as far as I can tell the receive-only IGate is not even
reporting received stations right now. I am 0.75 mi from campus and
it hasn't heard my home station yet. I just got digipeated by
KE4KWE in Phenix City and it digi'ed to KJ4RHB on the east side of
Columbus. So the IGate that put my beacon on the internet was over
35 miles away. <br>
<br>
Keith Warren<br>
AK4KO<br>
<br>
<br>
<br>
<br>
<br>
<br>
On 9/22/2011 9:53 PM, John Klingelhoeffer wrote:
<blockquote type="cite"><font color="black" face="Arial, Helvetica, sans-serif" size="2">Hi Carey;
<div><br>
</div>
<div>Having the iGate transmit is a regulatory concern. There
is a somewhat weak protection on the iGate server farm, so it
is possible for non-hams to put traffic into the system that
would end up out on the air without any control mechanisms.
This would be a problem for the station trustee. </div>
<div><br>
</div>
<div>I guess I can't see the rationale about 'broadcasting' a
remote users location, since one can go on any of the internet
sites that monitor the APRS servers and see the location. Can
you give me an example of how that would be useful?</div>
<div><br>
</div>
<div>Good to have traffic on the email reflector. Thanks.</div>
<div>73</div>
<div><br>
</div>
<div>John...</div>
<div>WB4LNM</div>
<div><br>
<div style="font-family: arial,helvetica; font-size: 10pt; color: black;">-----Original Message-----<br>
From: Carey Huff <a class="moz-txt-link-rfc2396E" href="mailto:huff360@gmail.com"><huff360@gmail.com></a><br>
To: K4RY <a class="moz-txt-link-rfc2396E" href="mailto:K4RY@eng.auburn.edu"><K4RY@eng.auburn.edu></a><br>
Sent: Thu, Sep 22, 2011 12:29 pm<br>
Subject: Re: [K4RY] Old business items for the meeting today<br>
<br>
<div id="AOLMsgPart_2_3045377f-55ec-40c8-b782-6c407708c4c2">
The list is always quiet - So I figure a discussion would
do the mail server some good!
<div><br>
</div>
<div>What's the reasoning behind planning to make it
receive only? You lose some features of an I-Gate that
make them such a good asset. </div>
<div><br>
</div>
<div>In the past, the I-Gate that was on the old ETV tower
was setup to always output the calls of 'old hams' from
the area. Anyone that used to be a part of the club
would get their packet pulled off the net and broadcast
in RF there in town. You could always see where I was
as long as I was within range of another I-Gate. (I
don't run APRS much anymore, so it's not a big deal for
me) </div>
<div><br>
</div>
<div>Don't get me wrong, I'm not fussing, just more of a
question out of curiosity. <br>
<br>
Carey<br>
<br>
<div class="gmail_quote"><br>
</div>
</div>
</div>
</div>
</div>
</font>
<pre><fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
K4RY mailing list
<a class="moz-txt-link-abbreviated" href="mailto:K4RY@mailman.eng.auburn.edu">K4RY@mailman.eng.auburn.edu</a>
<a class="moz-txt-link-freetext" target="_blank" href="http://mailman.eng.auburn.edu/mailman/listinfo/k4ry">http://mailman.eng.auburn.edu/mailman/listinfo/k4ry</a>
<a class="moz-txt-link-freetext" target="_blank" href="http://www.auburn.edu/student_info/k4ry/au_k4ry.html">http://www.auburn.edu/student_info/k4ry/au_k4ry.html</a></pre>
</blockquote>
</div>
<!-- end of AOLMsgPart_2_f7724f6f-8e32-4efe-b052-a1fcb6f8cc0f -->
<div id="AOLMsgPart_3_f7724f6f-8e32-4efe-b052-a1fcb6f8cc0f" style="margin: 0px;font-family: Tahoma, Verdana, Arial, Sans-Serif;font-size: 12px;color: #000;background-color: #fff;">
<pre style="font-size: 9pt;"><tt>_______________________________________________
K4RY mailing list
<a href="mailto:K4RY@mailman.eng.auburn.edu">K4RY@mailman.eng.auburn.edu</a>
<a href="http://mailman.eng.auburn.edu/mailman/listinfo/k4ry" target="_blank">http://mailman.eng.auburn.edu/mailman/listinfo/k4ry</a>
<a href="http://www.auburn.edu/student_info/k4ry/au_k4ry.html" target="_blank">http://www.auburn.edu/student_info/k4ry/au_k4ry.html</a>
</tt></pre>
</div>
<!-- end of AOLMsgPart_3_f7724f6f-8e32-4efe-b052-a1fcb6f8cc0f -->
</div>
</div>
</font>