• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

Differential GPS via mobile Internet

Bob Hall

EF1
Joined
Jan 19, 2005
Messages
67
Location
Tulsa, OK
I have a unique problem that hopefully someone here has some experience with. I am responsible for the site design and lay out for a fairly large festival (Tulsa OktoberFest). We have over 100,000 square feet of tent that go up on a site that because of undulations and curves does not have a grid or straight lines. To keep the Fire Marshal happy we have to maintain very specific distances between the tent rope stake lines. Generally I have to locate and mark the tent installations to within at most 5 feet of tolerance. I have been doing this specific task for 12 years and have developed measurements from fixed landmarks with respect to angle and distance.

The problem is after the 2011 everything gets bull dozed and rebuilt. This five hour task will become a 25-30 hour one. I had my Garmin along today and with between 9 and 11 satellites visible, the best I could see was +/- 15 feet. No where precise enough.

My Sprint wireless card doesn’t get much use this time of year, and surely someone is doing DGPS corrections over the Internet in real time. Five or six hours of Google searches have led me to mostly dead links and commercial services.

Any help would be greatly appreciated.
 
Last edited by a moderator:
I think unprocessed DGPS, now aka WAAS, can marginally get you the +-1m if your receiver is actually giving you the DGPS fix. Log the observations over 30 seconds or so and average to reduce the RMS error.

But I'd try the administrative solution first. Get in touch with the Tulsa Public Works Department. Their survey section surely has higher level equipment that can get you +-3" or so. Explain the situation, i.e. the FD needs this for the Oktoberfest, and I'll bet you a large Weissbier they'll spot you the reference points you need at no charge.
 
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