SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Monitor differential satellite positioning systems 
SAQA US ID UNIT STANDARD TITLE
14255  Monitor differential satellite positioning systems 
ORIGINATOR
SGB Surveying 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Physical Planning, Design and Management 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03  2 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2026-06-30   2029-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard has been developed for the surveying occupational area and is intended for persons who aim to achieve career advancement by gaining surveying skills leading to a qualification based on unit standards. A person who has successfully completed this unit standard is able to monitor a Differential Satellite Positioning System in any working environment.

A person credited with this unit standard is able to:
o Check the Differential Satellite Positioning System installation.
o Monitor the positioning from a Differential Satellite Positioning System.
o Report on the status of the system and it`s performance. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
NQF Level 4 numeracy and literacy; Computer literacy. 

UNIT STANDARD RANGE 
Range statements are included with specific outcomes as necessary. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Check the Differential Satellite Positioning System installation. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. Job instruction received and interpreted from the appropriate personnel. 

ASSESSMENT CRITERION 2 
2. Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct. 

ASSESSMENT CRITERION 3 
3. All the cables to the various positioning sensors identified. 

ASSESSMENT CRITERION 4 
4. The Differential Satellite Positioning Systems equipment are understood and explained. 
ASSESSMENT CRITERION RANGE 
A thorough understanding of the equipment and the installation should be demonstrated.
 

ASSESSMENT CRITERION 5 
5. Applicable task specific legal and safety requirements are understood and explained. 

SPECIFIC OUTCOME 2 
Monitor the Positioning from a Differential Satellite Positioning System. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. Poor quality pseudo-ranges and shore station telemetry should be identified. 

ASSESSMENT CRITERION 2 
2. Quality measures and error sources are explained. 

ASSESSMENT CRITERION 3 
3. Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated. 

ASSESSMENT CRITERION 4 
4. The source of positioning errors are identified and relevant personnel are informed. 

ASSESSMENT CRITERION 5 
5. The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure. 

ASSESSMENT CRITERION 6 
6. The necessity for accurate and timely RTCM SC104 corrections is explained. 

ASSESSMENT CRITERION 7 
7. The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained. 

ASSESSMENT CRITERION 8 
8. Operational safety rules and standard or operational procedures are applied. 
ASSESSMENT CRITERION RANGE 
A thorough understanding of the minimum requirements for the required accuracy is demonstrated in the working environment.
 

SPECIFIC OUTCOME 3 
Report on the status of the system and its performance. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. A report on the component configuration is completed. 

ASSESSMENT CRITERION 2 
2. The relevant data strings are downloaded and reported. 

ASSESSMENT CRITERION 3 
3. A record of the variables that measure the accuracy of the systems is maintained. 

ASSESSMENT CRITERION 4 
4. A record of the satellite constellation and satellite health is maintained. 
ASSESSMENT CRITERION RANGE 
Good written communications is applied.
 


UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
2. Any institution offering learning that will enable achievement of this unit standard or will assess this unit standard must be accredited as a provider with the relevant ETQA and registered with the FE / HE registrar.
3. Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures.

Therefore anyone wishing to be assessed against this unit standard may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
Essential embedded knowledge is dealt with under the specific outcomes section where "Display KNOWLEDGE and UNDERSTANDING" is required. 


Critical Cross-field Outcomes (CCFO): 

UNIT STANDARD CCFO IDENTIFYING 
Solve problems - refer to the following assessment criteria:
  • Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct.
  • All the cables to the various positioning sensors identified.
  • Poor quality pseudo-ranges and shore station telemetry should be identified.
  • Quality measures and error sources are explained.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure.
  • The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained.
  • Operational safety rules and standard or operational procedures are applied.
  • The relevant data strings are downloaded and reported. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation or community - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • Operational safety rules and standard or operational procedures are applied.
  • A report on the component configuration is completed.
  • A record of the satellite constellation and satellite health is maintained. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one`s activities responsibly and effectively - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure.
  • Operational safety rules and standard or operational procedures are applied.
  • The relevant data strings are downloaded and reported. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct.
  • All the cables to the various positioning sensors identified.
  • Poor quality pseudo-ranges and shore station telemetry should be identified.
  • Quality measures and error sources are explained.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The necessity for accurate and timely RTCM SC104 corrections is explained.
  • The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained.
  • A report on the component configuration is completed.
  • The relevant data strings are downloaded and reported.
  • A record of the variables that measure the accuracy of the systems is maintained.
  • A record of the satellite constellation and satellite health is maintained. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • The Differential Satellite Positioning Systems equipment are understood and explained.
  • Poor quality pseudo-ranges and shore station telemetry should be identified.
  • Quality measures and error sources are explained.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure.
  • The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained.
  • A report on the component configuration is completed.
  • The relevant data strings are downloaded and reported.
  • A record of the variables that measure the accuracy of the systems is maintained.
  • A record of the satellite constellation and satellite health is maintained. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others) - refer to the following assessment criteria:
  • Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct.
  • All the cables to the various positioning sensors identified.
  • The Differential Satellite Positioning Systems equipment are understood and explained.
  • Poor quality pseudo-ranges and shore station telemetry should be identified.
  • Quality measures and error sources are explained.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure.
  • The necessity for accurate and timely RTCM SC104 corrections is explained.
  • The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained.
  • Operational safety rules and standard or operational procedures are applied.
  • The relevant data strings are downloaded and reported.
  • A record of the variables that measure the accuracy of the systems is maintained.
  • A record of the satellite constellation and satellite health is maintained. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct.
  • The Differential Satellite Positioning Systems equipment are understood and explained.
  • Poor quality pseudo-ranges and shore station telemetry should be identified.
  • Quality measures and error sources are explained.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • The Differential Satellite Positioning System is reset and the QA / QC software is run after equipment failure.
  • The necessity for accurate and timely RTCM SC104 corrections is explained.
  • The Satellite Positioning System satellite constellation is explained and the effect of satellite geometry on accuracy is explained.
  • Operational safety rules and standard or operational procedures are applied.
  • The relevant data strings are downloaded and reported.
  • A record of the variables that measure the accuracy of the systems is maintained.
  • A record of the satellite constellation and satellite health is maintained. 
    		•

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full development of each learner and the social and economic development of society at large - refer to the following assessment criteria:
  • Job instruction received and interpreted from the appropriate personnel.
  • Communications ports for the Satellite Positioning System receiver are identified and the protocol by the Radio Technical Commission for Maritime Special Committee 104 for corrections to the receiver are correct.
  • Basic understanding of the Quality Assurance and Quality Control (QA / QC) package is demonstrated.
  • The source of positioning errors are identified and relevant personnel are informed.
  • Operational safety rules and standard or operational procedures are applied.
  • The relevant data strings are downloaded and reported. 
    		•

    UNIT STANDARD ASSESSOR CRITERIA 
    For an applicant to register as an assessor, the applicant needs:
  • A minimum of 2 (two) years` practical, relevant occupational experience
  • Declared competent in all the outcomes of the National Assessor Unit Standards as stipulated by SAQA
    Detailed documentary proof of educational qualification, practical training undergone, and experience gained by the applicant must be provided (Portfolio of Evidence). 
    		•

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Supplementary Information:

    The relevant information for Theory and Principles are contained in one or more of the following documents:
  • Training manuals
  • Survey Codes of Practice
  • Managerial Instructions
  • Manufacturers` manuals
  • Standard Task Procedures
  • Risk Assessment Documentation
  • Working Guides
  • Manufacturers` Manuals and Specifications
  • Professional Publications
  • United Kingdom Offshore Operators Association guidelines

    The appropriate Statutory and Legal sections are contained in one or more of the following documents:
    * Surface Surveying
  • Land Survey Act and Regulations
  • Professional and Technical Surveyor`s Act
    * Minerals Surveying
  • Mine Health and Safety Act 29/1996
  • Mineral Act (Act 50 of 1991)
  • Personal protective equipment means, but is not limited to, overall, hard hat, safety footwear, hand protection and harness or lifelines.
  • Hazardous and sub-standard conditions mean, but are not limited to, strong wind, rough sea, low visibility and low temperature.
  • Work related hazards and associated risks mean, but are not limited to, water on deck, slippery deck, cluttered deck, ropes and lines stored on deck, heavy moveable objects, power points and anything that might compromise good seamanship.
  • Survey point means, but is not limited to, survey station, beacon, stakes, marks, topography, features, transponder, transducer, responder or combinations of these.
  • Communicated means, but is not limited to, verbal communication, radio transmission and telephone.
  • Differential Satellite Positioning: Accurate measurement of the relative positions of two receivers tracking the same Satellite Positioning Systems signals.
  • Pseudo-ranges: The time shift required to line up a replica of the code generated in the received code from the satellite x the speed of light.
  • Shore station telemetry is the transmission of correction data from the reference stations to the mobile station.
  • RTCM SC104 means the Radio Technical Commission for Maritime services Special Committee 104.
  • QA / QC: Quality Assurance and Quality Control.
  • Satellite Constellation: the arrangement in space of a set of satellites. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  20487   National Certificate: Hydrographic Surveying  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  CETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.