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I'll second the recommendation of APRSdroid on an Android tablet.
It'll work easily with online maps, but with a little more effort
you can configure it to work with OpenStreetMap data downloaded to
the device, so it works completely offline (without Internet
connection). It's what I use for balloon chases.<br>
<br>
David, ky7dr<br>
<br>
<div class="moz-cite-prefix">On 2015-08-10 12:11, Dallas Clements
via aprssig wrote:<br>
</div>
<blockquote
cite="mid:CAFCriiAND212VhyX-5Kx5PJb_fTm7ioC16qoY8BKownrEdjgXw@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">Chuck,</div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">Several options have been shared so far
to help you with your bike race. I've used AvMap, WinBooks,
Bluetooth TNCs, and soft TNCs. All have their merits, but if
you're looking for something that will be less expensive to
procure for multiple assistance vehicles and rest stops, I'd
recommend simply hooking an Android tablet or phone via audio
cable to a HT. The app APRSDroid has a connection protocol
labeled "AFSK via Speaker/Mic" that will decode the received
packets heard on the radio and overlay them on a map on the
Android device's screen. The option to use an Offline Street
Map is there and with the device's built in GPS, you know
where you are in relation to the objects that you're
receiving. </div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">Simple. Inexpensive. </div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">If you wanted to transmit, too, I'd
recommend a more capable radio than a HT, but it sounds like
you're just trying to bring situational awareness to more
people. That being the case, the wattage of the device is
irrelevant. Depending on your peer group, it's not hard to
find people who have an older Android device gathering dust in
their home from the last upgrade cycle or two. That leaves
your cost at $4.99 for the app and whatever money you spend
making cables. I'm assuming finding HTs and mag mount antennas
to borrow will also not be a problem within your local club.</div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">This setup that I'm describing is the
entry level APRS rig that we use to get new amateurs in our
club exposed to APRS. After they use it for a few weeks, they
tend to upgrade to something with more transmit power.
However, for your purposes, it may be ideal.</div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">Here's the "how-to" we wrote for our
club. It has a wiring diagram for Wouxun, Baofeng, and some
Kenwood HTs.</div>
<div class="gmail_extra"> </div>
<div class="gmail_extra"><a moz-do-not-send="true"
href="http://www.wcares.org/?page_id=2677">http://www.wcares.org/?page_id=2677</a></div>
<div class="gmail_extra"> </div>
<div class="gmail_extra">Dallas Clements</div>
<div class="gmail_extra">K7DCC<br>
</div>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><br>
---------- Forwarded message ----------<br>
From: Charles Bland <<a moz-do-not-send="true"
href="mailto:root@blandranch.net">root@blandranch.net</a>><br>
To: <a moz-do-not-send="true" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br>
Cc: <br>
Date: Sun, 9 Aug 2015 17:25:00 -0700<br>
Subject: [aprssig] Mobile Off-Air Display<br>
<div dir="ltr">I'd like to get the latest opinion from this
group about putting together a simple mobile APRS display
solution.
<div><br>
</div>
<div>Our local club does a couple of bike events each
year. We have an ad-hoc network to support our trackers
over the course area. I have been turning my attention
toward broader use of the info. For example, our rest
stops now have displays, and we run a Public Info table
so that we can make event participants aware of what we
do and how we do it.</div>
<div><br>
</div>
<div>I am now turning my attention to our radio operators
in the sag wagons. For insurance purposes, the bike club
provides the cars and drivers. The radio op rides
shotgun, using a Go-Box that has battery assist so that
the cigarette lighter adapter isn't doing the heavy TX
lifting and can be shared for other uses.</div>
<div><br>
</div>
<div>I'd like to have simple, non-transmitting display
setup so that the operator can "look" around the course
as he has need. I'm not sure where to start looking for
commercial solutions, if there are any at all. I also
have been wondering, given the abundance of R-PI
hardware, if a R-PI and display would be enough to run
something like YACC. A simple RX and antenna would be
enough, and the package could be small enough to occupy
little of the precious space in the vehicle and not pose
a safety issue. Even nicer if it could be on the dash.</div>
<div><br>
</div>
<div>So, what do you folks know? How would you approach
such a requirement?</div>
<div><br>
</div>
<div>Chuck</div>
<div>NA6BR</div>
</div>
<br>
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