Ed Pare of Eastern Surveying Company adjusts the bipod on one of their drill hole control points (BQ09).
Jim's question about
background maps reminded me that I should have followed up a bit with this thread. Sorry not to have done so sooner - it's been busy here to say the least.
Our mission on Swans Island three weeks ago went very well and even though we found no 19th century boundary-related evidence as hoped, we did find evidence of at least one other surveyor having been out in the desolate rocky area within the past 25 years. The cool part was how we had come to his flagged line. The other cool part was the testing of the UHF range of the HPT404BT under the conditions shown in the topo above where connecting the external UHF antenna to the Triumph-LS proved the deciding factor in successful reception of corrections from the BASE (BQ04 in the map above) over a mile away.
As to how we had arrived at the same line as had previously been flagged quite some time ago, the previously calculated points that are shown above and below were loaded into the LS and used for our general navigation and reconnaissance. Even though the feature implemented by Sergey Gaydukov in
J-Field allowing us to load background maps exported directly out of
Global Mapper came
after our visit to Swans, I still think of it in connection with this project for Eastern Surveying Company as it was my first test using RMaps on the LS.
Just a quick explanation of what you're looking at: An ancient survey plan was georeferenced in Global Mapper using actual survey data and ortho imagery - a bit of a purple nurple (aka titty-twister), but remarkable conformity with the coastline; coordinates were extracted at the corners of the lots surrounding Goose Pond on Swans Island, Hancock County, Maine and then those (23) points were imported into the LS and are shown in the red color. Beneath the page's red text is the background map of the ancient lotting plan created effortlessly in Global Mapper 16 and now thanks to Sergey Gaydukov is first seen here in this test. Way cool guys - thanks!
If you already are a
Global Mapper (GM) user, you can quickly create custom background maps for the Triumph-LS. From the main menu; File, Export Raster/Image Format..., Select Export Format from pulldown menu selection: RMaps SQLite Database.
To get your map onto the LS
- Using Windows Mobile Device Center (WMDC) navigate to the storage card
- Create a folder Computer\Compact\Storage Card\VS Data\BackgroundMaps
- Copy your map exported from GM; e.g., 1430_Pare.sqlitedb and place it in this new folder called BackgroundMaps
- Next, from the Collect screen, tap Project, Edit Current Project, Background Map, choose your recently created masterpiece and then tap OK.
If you don't yet have Global Mapper, there's an option for you use as Vladimir Prasolov first outlined and shared
here by Matt Johnson using
Mobile Atlas Creator (MOBAC).
