RF fundamentals

Choosing an interference scenario

Wi-Fi congestion, non-Wi-Fi signals and noise exercise different behaviours. Choose the stimulus that matches the question.

Engineering guide2 min read5 sections

Co-channel and adjacent-channel traffic

MT-Wave generates real 802.11 traffic. Place it on the DUT’s channel to exercise co-channel congestion, or on a neighbouring channel to examine adjacent-channel effects. Record channel width and RF level as part of the scenario.

Traffic class and channel load

Voice, Video, Best effort and Background are the documented WMM traffic classes. Inter-frame spacing and payload settings let you change the traffic pattern. Compare these conditions with the same reference traffic on the DUT.

Bluetooth and IEEE 802.15.4

The second radio plays Bluetooth Classic, Low Energy and Long Range signals, or IEEE 802.15.4 frames. It can operate at the same time as the Wi-Fi radio, with one non-Wi-Fi signal type selected at a time.

Noise and radar are different tests

AWGN raises the noise floor for sensitivity and SNR investigations. Radar patterns exercise DFS detection and channel behaviour. Neither should be described as ordinary Wi-Fi traffic, and radar development checks do not replace accredited certification.

Measure the stimulus at the reference plane

Cable loss, attenuation and over-the-air paths affect the interference reaching the DUT. MT-Wave’s non-Wi-Fi level is a setting rather than a calibrated absolute output. Measure actual power where it matters to the conclusion.

Based on Wavemetrik’s MT-Wave datasheet and technical capabilities presentation. Current product specifications take precedence over earlier presentation figures.

Engineering guides