[aprssig] Mobile Off-Air Display

Charles Doughtie n5exy at yahoo.com
Wed Aug 12 01:12:34 EDT 2015

We use clips directly to the battery and "duck" tape. Tape can help with the mag antenna mount also. 
de Charlie, N5EXY, Grid EM10fl, 
South Suburban Greater Hutto

      From: Dan Walls via aprssig <aprssig at tapr.org>
 To: Backforty at blandranch.net; Charles Bland <root at blandranch.net>; TAPR APRS Mailing List <aprssig at tapr.org> 
 Sent: Tuesday, August 11, 2015 11:28 PM
 Subject: Re: [aprssig] Mobile Off-Air Display
Can you give me some more info about how you provide power for your sag radio's.  I am helping the the tour de cure in Colorado this weekend and I will be using car provided for me.  The power issue is a concern to me.  I thought about powering the mobile from a 7 amp h  battery.  I am concerned about how long the battery will last.


On Sun, Aug 9, 2015 at 6:25 PM, Charles Bland via aprssig <aprssig at tapr.org> wrote:

I'd like to get the latest opinion from this group about putting together a simple mobile APRS display solution.
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.
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.
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.
So, what do you folks know? How would you approach such a requirement?
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Dan WallsNA5DW
Cell 405-414-9326
Fax (888) 863-8601 
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