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Linux/WL1831MOD: wl18xx ETSI EN 300 328 V1.9.1 (2015-02) radio test issue

Clark Zheng
Intellectual 380 points
Part Number: WL1831MOD

Tool/software: Linux

hi,
 
We conducted the EN 300 328 Adaptivity test
After application of disturbance wave, the waveform like the attached file was confirmed.
The first piece of the attached file is the waveform in the state where disturbance wave is applied at marker 1 at 200 seconds sweep.
The second sheet is the enlarged waveform of the signal appearing after applying the disturbing wave. The total ON time is about 5.9 ms during 50 ms is larger than 10%
so It is failed 

how to solve this issue？Hope to get your help as soon as possible Thank you!

 
  • 0
    TI__Mastermind 29250 points
    Hi,

    This query has been assigned to a relevant expert. We will get back to you shortly.

    Best regards,
    Vihang
  • 0 in reply to Vihang Parmar
    TI__Genius 12260 points
    Hi Clark,

    The adaptivity test is a sensitive one and you must ensure that the interferer signal used is 20MHz BW and 100% duty cycle. Even at 98% duty cycle you may fail the test. What does your interfere signal look like. Have you ensured that the system is calibrated such that it is receiving the correct level? I would start with that and ensure the set-up is correct. We have passed this test with our lab on our COM8 board. You can also try the test on our reference to ensure you pass and troubleshoot your setup.

    I hope this helps.

    Thanks,
    Riz