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2389831_en-US
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2389831_en-US
2389831_en-US
I am observing unexpected behavior for one of our products using QN9083 BLE SoC. When I measure the device receiver sensitivity, I am seeing deltas up to 10dB between consecutive measurements. I am using a CMW100 in advertiser mode to perform measurement and the device is placed in a shielded RF box. Performing consecutive RxS measurements, without opening the box and/or changing device location, the device responds with up to 10dB difference (i.e., -91dBm and -81dBm) which is unexpected and never happened before. The behavior is random. I am looking for possible causes both hardware and software.
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