Meaning
Method of evaluating the transmitter and receiver performance of a radio device involves connecting the test equipment directly to the antenna port. Conducted radio testing isolates the electronic performance of the RF chain from the influences of the antenna and the surrounding environment. This approach allows for precise measurements of output power, frequency stability, bandwidth and spurious emissions.
It is the primary way to verify that a radio module meets its datasheet specifications before it is integrated into a final enclosure.
Measurement Accuracy
Precise control over signal levels is the main advantage of this cabling method. Losses are minimized. During conducted radio testing, engineers use calibrated attenuators and splitters to manage the power entering the spectrum analyzer.
This physical connection removes the variables of multipath interference or room reflections.
Assembly Threshold
Assembly lines often use this technique to verify the soldering and connection of the RF front end. If conducted radio testing shows a loss in signal strength, it indicates a fault in the traces or the connectors on the printed circuit board. This diagnostic step happens before the device is sealed.
It ensures that any hardware defects are caught while the board is still accessible for rework.
Regulatory Compliance
Standards bodies often mandate these direct measurements for specific transmitter parameters. While radiated tests check the overall performance of the integrated device, conducted radio testing remains the baseline for checking the spectral mask. Technical files submitted for certification include these results to prove the radio does not bleed into adjacent frequency bands.
