MAX-7 / NEO-7 - Hardware Integration Manual
UBX-13003704
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R09
Production Information
Product
testing
Page
47 of 52
8
Product testing
8.1
u-blox in-series production test
u-blox focuses on high quality for its products. To achieve a high standard it is our philosophy to supply fully
tested units. Therefore, at the end of the production process, every unit is tested. Defective units are analyzed in
detail to improve the production quality.
This is achieved with automatic test equipment, which delivers a detailed test report for each unit. The following
measurements are done:
Digital self-test (Software Download, verification of FLASH firmware, etc.)
Measurement of voltages and currents
Measurement of RF characteristics (e.g. C/No)
Traceability down to component level
X-Ray and Automated Optical Inspection (AOI)
Ongoing Reliability Tests
Figure 39: Automatic Test Equipment for Module Tests
Figure 40: X-Ray Inspection
8.2
Test parameters for OEM manufacturer
Because of the testing done by u-blox (with 100% coverage), it is obvious that an OEM manufacturer does not
need to repeat firmware tests or measurements of the GNSS parameters/characteristics (e.g. TTFF) in their
production test.
An OEM manufacturer should focus on:
Overall sensitivity of the device (including antenna, if applicable)
Communication to a host controller
8.3
System sensitivity test
The best way to test the sensitivity of a GNSS device is with the use of a 1-channel GPS simulator. It assures
reliable and constant signals at every measurement.
