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PIM Certification

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ETA-I has provided industry certification since 1978 in over 80 technical areasPIM Sweep certification Tower Safety

Passive Intermodulation – PIM Competencies Requirements The following competencies will show the technician the various knowledge and abilities necessary to be trained in Passive Intermodulation testing, equipment and safety procedures.

Ira Wiesenfield pim testingOur PIM Instructors are responsible for the re-writing (approximately 25%) of the FCC General Radiotelephone Operator License test that was released July 1, 2009. This endeavor was conducted though the Electronics Technicians Association (ETA).

PIM certification tower safety

  • 1.0 PASSIVE INTERMODULATION – PIM 1.1 Define PIM in radio circuits 1.2 Discuss associated terminology and be able to define related network elements 1.3 Identify the Key Performance Indicators of PIM – KPI 1.4 Know wireless carrier and manufacturer PIM methods and procedures 1.5 Explain the difference between a “System Test” and a “Component Test.”
  • 2.0 PIM – TECHNOLOGY OVERVIEW 2.1 Identify and define dB and dBm 2.2 Discuss radio power levels and the difference between radiated and non-radiated power 2.3 Define dBc and the difference with dBm 2.4 Define and understand Intermodulation in radio systems 2.5 Identify and describe noise and spurious emissions in radio systems 2.6 Describe receiver Desense (loss of sensitivity) 2.7 Describe the difference between an antenna and a load 2.8 Discuss the role of antenna line sweep and the role of PIM testing
  • 3.0 PIM SOURCES 3.1 Identify Internal PIM Sources 3.2 Identify External PIM sources 3.3 Describe how to identify multiple PIM sources 3.4 Demonstrate how to reduce external PIM sources at radio sites 3.5 Describe and be able to define the role of connectors, antennas, filters, combiners, and other network elements as possible sources of PIM
  • 4.0 PIM TESTING 4.1 Define and understand Static PIM Testing 4.2 Define and understand Dynamic PIM Testing 4.3 Demonstrate how to determine the correct frequencies for PIM Testing 4.4 Discuss the difference between swept frequency and fixed frequency PIM testing 4.5 Show by example how to determine the level of a 3rd order Intermodulation product 4.6 Demonstrate how to use a Spectrum Analyzer to find spurious emissions and intermodulation 4.7 Demonstrate the proper procedure for conducting a PIM test 4.8 Conduct a System test with an antenna attached 4.9 Conduct a System test with a “LOW PIM” Load attached 4.10 Identify and discuss the purpose of a HIGH PIM Load 4.11 Identify and explain the purpose of a LOW PIM Load 4.12 Conduct an Antenna “ONLY” test
  • 6.0 PIM RESULTS INTERPRETATION 6.1 Demonstrate the proper steps for verifying the PIM test equipment during test set-up 6.2 Place markers or labels within the test equipment to identify components 6.3 Demonstrate the power levels of two fixed carriers being generated by the PIM test equipment 6.4 Mathematically calculate the 3rd Order Intermodulation product and determine the level of this carrier 6.5 Determine the level of the thermal noise floor on the spectrum analyzer in an idle (normal state) 6.6 Determine the level of the noise floor with the RF-ON from the PIM tester, note the difference 6.7 Be able to explain the impact of full power downlink carriers on the associated up-link receivers
  • 7.0 DOCUMENTING PIM TESTS 7.1 Save PIM test equipment set-up procedures (state files) 7.2 Name the location and sector if applicable 7.3 Create and save test markers or labels for the system under test 7.4 Explain the typical carrier requirements for a PIM test report 7.5 Generate or create a report using the test equipment 7.6 Save the report to an external memory source (thumb drive or equivalent) 7.7 Open or print the report on another computer and display the results 7.8 Remove the equipment from the system under test and return all clearances to operators 7.9 Remove any Lock-out, Tag-out Orders 7.10 Ensure proper operation of all equipment to pre-test status

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Tower Safety & Instruction

Kathy Gill founded Tower Safety & Instruction in 2013, having years of direct experience in the industry. Kathy served as the Safety Director in the wireless industry and a outside plant installer for AT&T/Lucent. An experience in which lead her to believed she could start making small changes in the industry, one student at a time. read more

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