I told them that I'm trying The MobileMapper 6, this week we will do field tests, but reading on the Internet I found that at the beginning of this year we wrote an article based on a test of comparison of these two instruments, here I will show you the most important of this comparative that can download Complete from this page.
The MobileMapper 6 data was collected using the Magellan Mobile Mapping, with posttrending option, then corrected with the MobileMapper Office
The Trimble Juno data was collected using ArcPad 7.1 and the Trimble GPScorrect extension, then the raw data was corrected with ArcMap 9.3 and the Trimble GPS Analyst extension.
Both devices were mounted on a cane, in order to capture data in the same conditions and time. The exercise was done measuring A cul-de-sac, first measuring it with a ProNark 500 of 1 centimeter of precision to have it for reference and then with the two devices put to the test.
The following graph shows the data obtained, before and after the postprocess. The yellow lines correspond to the Trimble (five routes), the blue lines to the Magellan; See how after the adjustment, the capture of the MobileMapper is almost the same line.
In the next image are the data compared (already postprocessed), observe how the Trimble has serious problems when capturing the points in the two corners, at the foot of the building that makes interference, compared to the Magellan.
This is only visual, now let's see what happens if we compare with the real measurements in a table. Individual tables appear in the document as follows, but for our purposes we have joined them with a sophisticated program called MS Paint.
As you can see, all the measurements of the Magellan (in blue) reflect a submetric precision, with 0.70 at most, with an average of 0.50. While those of the Juno (in yellow) go from 0.40 to 5.30 and its average is 1.90.
It seems that the BLADE technology implemented by Magellan makes this device generate precision results quite similar to what its predecessor known as MobileMapper Pro did, with Some more advantages And above all, at an unbeatable price if you consider that it provides sub-metric precisions.
Oh, as for price, this is the comparison, with prices in the United States, in March of 2009, including the software used.
MobileMapper 6 Receiver
Juno SC Receiver
|GPS Analyst Extension for ESRI ArcGIS||$ 1,995|
Here you can see the complete document, Which explains more conditions of capture, correction and even precisions under conditions of limited reception.