WL1837MOD: WL1837MOD EMI FAILING AT 4.8 GZ

giridhar nimmagadda

Part Number: WL1837MOD
Other Parts Discussed in Thread: WL1837

We have purchased which has WL1837 MOD with+bt The Radiatied emission testes failing as below kindly suggest any update on firmware will reduce this emissions

Radiated Emission/Susceptibility

CISPR 32/IEC 61000-4-3

09-Aug-19

RE failed at 4.8Ghz at margin of -7db@4.8Ghz. RS passed

which has

over 6 years ago

0 giridhar nimmagadda over 6 years ago

Prodigy 20 points

pls find the results

Horizontal Results
Frequency	Avg	Limit	Margin
MHz	dBuV/m	dBuV/m	dB
1.125	30.59	50	19.41
1.584	27.84	50	22.16
2.331	44.33	50	5.67
2.41	81.4	50	-31.4
3.414	40.3	54	13.7
4.824	61.33	54	-7.33

0 Rizwan Murji over 6 years ago in reply to giridhar nimmagadda

TI__Genius 12900 points

Hi Giridhar,

Can you tell me what configuration you are testing in? Is this with the host using calibrator? Or is it with RTTT using the RS232 interface?

Can you please confirm the FW version that you are using? What is your set-up? 1 or 2 antennas? Please follow the wlconfig app note to ensure that you are setting up the radio as required. The app note can be found here:

Thanks,

Riz

0 Rizwan Murji over 6 years ago in reply to Rizwan Murji

TI__Genius 12900 points

Hi Giridhar,

I have not heard from you on this issue for over a week. I will go ahead and close the issue for now. If you are still having an issue, please feel free to open up the thread again and provide the requested information.

Thanks,

Riz

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WL1837MOD: WL1837MOD EMI FAILING AT 4.8 GZ