Google Links

Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Prepare for spatial data collection.
   • Task requirements are reviewed and spatial data collection is planned in consultation with appropriate persons.
   • GNSS equipment is selected and checked according to task requirements.
2. Use GNSS equipment to collect data.
   • Site conditions are checked to identify factors that could obstruct or interfere with GNSS operation and impact on accuracy of data.
   • Conditions for obtaining optimum GNSS positions are determined and basic methods to improve accuracy of GNSS point positioning are applied.
   • GNSS equipment is set up and operated according to organisational requirements.
   • Point positional data is collected, validated and recorded according to task specifications and organisational requirements.
   • Checked data is collected according to organisational requirements.
3. Finalise spatial data collection.
   • Data is downloaded and verified, and additional data gathered where required according to organisational requirements.
   • Data is processed, and reports and documentation are completed according to organisational requirements.

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.
Spatial data must include:	features and their attributes horizontal position in latitude and longitude, easting and northing vertical height.
Appropriate persons must include at least one of the following:	experienced colleague qualified surveyor supervisor or line manager.

---

Performance Evidence

A person demonstrating competency in this unit must satisfy the requirements of the elements, performance criteria, foundation skills and range of conditions of this unit. The person must also collect spatial data using global navigation satellite systems (GNSS) for two different tasks in consultation with colleagues.

While collecting the above spatial data, the person must:

collect point positional data and attributes to surveying accuracies for the task, both by single point positioning and differential techniques for designated datum and map projection

communicate clearly with others to clarify data collection tasks and report task information

comply with organisational and legislative requirements for identifying hazards and working safely

operate the equipment specified in the assessment conditions, and comply with industry and organisational methods for data collection

plan work tasks to take into account factors that affect accuracy of data collection using GNSS

spatially view collected positional data, and non-spatially view collected attributes

verify accuracy of a sample of collected points by recollecting points or other suitable method.

---

Knowledge Evidence

A person demonstrating competency in this unit must demonstrate knowledge of:

difference in heights and height datums between GNSS heights and heights on Australian Height Datum

factors that affect accuracy of data collection by GNSS

methods for checking accuracy of data collected

purpose of and methods for setting designated datum and map projection

typical accuracies obtainable with different GNSS techniques.

---