Page 8 - GNSS Simulation - A Guide to Testing
P. 8
Radiating test setup
using RF enclosure
To produce a reliable and consistent test, it is critical that the device under test be consistently
located, that the separation distance between the antennas is maximised (this reduces the
sensitivity to placement variation) and that any connected cables be as short as possible and
routed consistently between tests to minimise the risk of cable placement influencing the test
results. If possible, devices should operate without any cables connected.
It is also critical that the RF chamber be closed and sealed for the duration of the test. If user
interaction is required, for example to press buttons or read results, then these actions must be
performed before or after the test.
Due to losses involved in re-radiating the GNSS signals, the need for additional attenuation may
well be eliminated, however, this will be highly dependent upon the physical test configuration
and the sensitivity of the equipment being tested.
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