Integration Manual

Table Of Contents
LISA-U2 series - System Integration Manual
UBX-13001118 - R25 Product Testing Page 162 of 182
5 Product Testing
5.1 u-blox in-series production test
u-blox focuses on high quality for its products. All units produced are fully tested. Defective units are
analyzed in detail to improve production quality.
This is achieved with automatic test equipment, which delivers a detailed test report for each unit.
The following measurements are made:
Digital self-test (firmware download, flash firmware verification, IMEI programming)
Measurement of voltages and currents
Adjustment of ADC measurement interfaces
Functional tests (serial interface communication, real time clock, battery charger, temperature
sensor, antenna detection, SIM card communication)
Digital tests (GPIOs, digital interfaces)
Measurement and calibration of RF characteristics in all supported bands (receiver S/N
verification, frequency tuning of reference clock, calibration of transmitter and receiver power
levels)
Verification of RF characteristics after calibration (modulation accuracy, power levels and
spectrum performance are checked to be within tolerances when the calibration parameters are
applied)
Figure 75: Automatic test equipment for module tests