How to reduce nRF9160's LTE-M TX power in coduction test

RE: How to reduce nRF9160's LTE-M TX power in coduction test

JONATHAN LL — Wed, 05 Oct 2022 15:35:03 GMT

Hi Qin,

Are you asking for a specific command that is to be used during normal operation?

As Sigurd pointed to the %XRFTEST does have a parameter to adjust TX power for testing. Did the device not pass the SAR test at with the max TX power?

also linking to the part of the doc with SAR reference:
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fnwp_033%2FWP%2Fnwp_033%2Fnwp_033_antenna_test.html

Regards,
Jonathan

RE: How to reduce nRF9160's LTE-M TX power in coduction test

RongLinQin — Tue, 27 Sep 2022 07:03:42 GMT

Hello Nordic support:

Thanks for your support.

We want to reduce the LTE power in the SAR test. Is there any AT command to reduce the power in normal LTE operation.

Thanks!

BRs

Qin,Rong-Lin

RE: How to reduce nRF9160's LTE-M TX power in coduction test

Sigurd — Tue, 20 Sep 2022 11:14:12 GMT

Hi,

If this is some production test, you can set it with the AT command %XRFTEST

See these links:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fnwp_034%2FWP%2Fnwp_034%2Fnwp_034_tx_test.html

https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/production_test/xrftest_tx.html