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

[RongLinQin]

Hello Nordic support:

        How to reduce nRF9160's LTE-M TX power in coduction test. Is there any AT command to reduce TX power? Or could you give us some guide about how to modify nRF9160's source code to reduce TX power.

        Thanks. 

BRs

Qin, Rong-Lin

[Sigurd]

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

[RongLinQin]

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

         

[JONATHAN LL]

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