Survey a whole field (Field Survey)

Park on the benchmark spot, tap Start

The screen opens ready but not recording: the grey banner reads Armed — tap Start in sidebar to record. Park on the spot you picked for the benchmark, implement on the ground. Tap Start at the top of the right-hand column. On a new survey the app first asks for a benchmark: Drop a benchmark first.

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Tap Drop Benchmark Here

It's the right-hand button in the Drop a benchmark first window. Drop Benchmark opens, asking for a name.

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Type a name for the benchmark

Tap the Benchmark name box and type a name you'll know next year: "Gate corner" beats BM-1 (typing).

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Tap Next: Average and hold still

Next: Average is at the bottom right. Keep the machine still for the 5-second average (Hold position — averaging).

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Check the benchmark is in, then tap Start

A flag appears on the map, the chip at the top left reads 1 BM and the button reads Benchmark (1). Tap Start again: now it records.

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Drive the field

The banner reads Recording and breadcrumb dots follow you, one every Recording Interval; the count at the top left climbs. Drive back and forth like mowing or spraying, passes evenly spaced, edges included. An AB line keeps the passes straight (AB-line passes).

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If RTK drops, logging stops until it's back (Waiting for RTK fix — recording paused) and you'll see a gap in the trail. Drive back over gaps with RTK Fixed.

For a low spot or corner, tap Log Point Here

Log Point Here is the second button in the right-hand column. It adds one point right where you are, for a low spot, an inlet or a corner between passes. A message at the bottom confirms it: Point logged (26 total). It still needs a good fix (Waiting for an accurate RTK fix — point not logged.).

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To cross a road or headland, tap Pause

Pause is at the top of the right-hand column. Logging stops and the button becomes Resume; tap it to carry on.

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When the field is covered, tap Finish & Save

Finish & Save shows the point count, for example Finish & Save (56). It needs at least 10 points (Fewer than 10 points — keep driving or Cancel.). Save Field Survey opens.

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Type the survey name

Tap the Survey name box and type the field's name (typing). The line above shows the file it will save as.

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Tap Save & Return or Save & Use Now

The two right-hand buttons at the bottom of the window both save. Save & Return, the white one in the middle, saves and takes you back to the workflow (Survey saved: levee_north_40_levee.json). Save & Use Now, the wide green one on the right, saves and goes straight on to the contours. Discard, the white button on the far left, throws the points away.

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Save & Use Now is offered from Levee and the contour workflows. From Land Forming and Tiling the survey is for export, so the window has Discard and a single Save.

Park on the benchmark, tap Benchmark

Park on the benchmark spot, implement on the ground, as when you dropped it. Tap Benchmark (1), under Start / Resume in the right-hand column. The Benchmark menu opens.

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Tap your benchmark's row

The menu lists the benchmarks with their elevation and date. Tap the one you're parked on, then hold still for the 5-second average. Drop New Benchmark Here adds another instead.

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You have to be parked on it: farther than 10 m and it says You are … from "Gate corner". Drive within 10 m to calibrate. The difference is applied to every point you log from then on, so today's points line up with the original survey.

Tap the survey in the list

When saved field surveys exist, opening Field Survey asks Resume or export existing survey. Show only levee surveys (or the workflow you came from) filters the list. Tap the survey's row. Start Fresh Survey starts a new one instead.

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Tap Resume survey

Survey actions opens with Resume survey at the top. Tap it to keep adding points. To export instead, tap one of the seven formats listed under it: CSV, TSV, XYZ (space or semicolon), KML, Shapefile ZIP or LandXML, in WGS84 with elevations in metres. Exports go to Documents/DitchAssist/exports with a Share button (Export a survey).

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Calibrate if the base moved, then tap Resume

The survey opens with its earlier points (with a gap where you stopped last time) and its benchmarks, so the whole field stays in one elevation frame. If the base has moved or restarted since, calibrate first (above). Then tap Resume at the top of the right-hand column and carry on driving.

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