nrf9160 tx power

[EUREKA]

The nrf9160 tx power is 23DB ；

We is designing a procuct for ODM;

The size of product is small.

TRP requirements 20DB;

So the antenna  designs is difficult；

Now my problem is described below：

1. The nrf9160 tx power ≧22.5DB for delivery is possible According to our requirements；

2. The nrf9160 module tx power is not lower than 23DB；

 

[ketiljo]

The nRF9160 have max output power at 23 dBm. This is fixed in the modem FW and can't be changed

[EUREKA]

Hi 

Can you tell me what is the output power of the completed module；

Can you provide a partial list？

[ketiljo]

The output power is stated in the PS here: https://infocenter.nordicsemi.com/topic/ps_nrf9160/_tmp/alta.nRF9160/autodita/RADIOLTE/parameters.rf_spec_tx_m1.html and https://infocenter.nordicsemi.com/topic/ps_nrf9160/_tmp/alta.nRF9160/autodita/RADIOLTE/parameters.rf_spec_tx_nb.html

Also take a look at this document: https://www.nordicsemi.com/-/media/Software-and-other-downloads/SiP/nRF9160-SiP/nRF9160-Hardware-integration-guide.pdf

[JuhaK]

Hi,

According the documentation mentioned above, the maximum TX output power is 23dBm +/-2dB --> 21...25dBm, following 3GPP. We are measuring for example <22dBm at B12 (nRF9160-DK/CMW500). Based on the documentation this is according to the spec, but the question is that what is the actual typical TX power and standard deviation in normal conditions? Does our DK represent typical or corner sample?

We  have a suitable probe+cable for Murata LTE antenna connector, but due to the lack of cal kit, we are not able to measure its exact loss for accurate power measurements. Can you recommend/provide a suitable probe+cable with exactly known loss over frequency characteristics?

Thanks,

[ketiljo]

You will have about 1 dB loss in the cable (Murata cable assembly), depending a bit on the frequency. The DKs are typical.