What is PIM testing?
What is PIM testing?
An on-site PIM test is a comprehensive measure of linearity and construction quality. PIM shows up as a set of unwanted signals created by the mixing of two or more strong RF signals in a nonlinear device, such as a loose or corroded connector, or nearby rust.
What is a PIM standard?
HUBER+SUHNER low PIM standards are special adapters which generate intermodulation products of a certain preset level. They are used to verify intermodulation test benches for an instant and/or long-term level stability monitoring.
What is PIM modulation?
A: PIM is the generation of interfering signals caused by nonlinearities in the mechanical components of a wireless system. Two signals mix together (amplitude modulation) to produce sum and difference signals and products within the same band, causing interference.
How is PIM measured?
Passive Intermodulation (PIM) testing is intended to measure the linearity of a system. This is done by injecting two test signals into the device under test while measuring the magnitude of intermodulation products generated by the device. If the magnitude of the intermodulation product is low, the system is linear.
What does a PIM system do?
A PIM solution provides a single place to collect, manage, and enrich your product information, create product catalogs, and distribute information to your sales and eCommerce channels.
How can PIM be minimized or eliminated?
The good news is that there are ways to minimize the impact of PIM in DAS. The obvious ones are to 1) avoid frequency combinations that place low order IM product(s) in Rx band(s); 2) reduce site Tx power, or 3) improve the linearity of the system.
Is PIM a database?
In essence, a PIM system is a central database of product data.
Does PIM include pricing?
Almost any information related to a product can be stored in a PIM. It’s common to have product details, product descriptions, pricing, shipping and handling, and supplier information.
What kind of data is in a PIM?
Technical product specifications like size, dimensions, price, weight, color, material, performance data, etc., can be included in the PIM. While it might not seem essential to store such complex information in the PIM for internal usage, it is absolutely necessary when selling on certain marketplaces or channels.
What data is stored in a PIM?
Do you need a certification to do PIM testing?
Certification training is recommended for individuals who lead PIM test crews or who perform PIM testing in the field as a job requirement. We provide training online or at location of your choice. Please contact us for price information and scheduling
How does passive intermodulation ( PIM ) test equipment work?
PIM test equipment works by transmitting two high power signals into the line or device under test. If the test signals encounter a non-linear junction mixing occurs causing the PIM frequencies to be generated. The PIM signals travel in all directions from the point of generation.
What should the power level be for a PIM test?
Because the magnitude of PIM generated by a defect changes depending on the applied test power, it is important that all specifications clearly state what power level to use when performing the test. IEC 62037 recommends that +43dBm (20W) test tones be used when performing PIM tests on communications systems.
What kind of test tone should I use for PIM?
IEC 62037 recommends that +43dBm (20W) test tones be used when performing PIM tests on communications systems. Using a common test power across the industry both in the factory and in the field provides a consistent method to characterize and compare PIM performance to a common specification.
