Use external LTE antenna on custom board based on nrf9160 Configurations

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

IsaiahTC — Thu, 02 May 2024 09:47:58 GMT

Hi

Thank you. I get it now. Unfortunately, the connector on the antenna doesn't fit on the DK.It looks like the one for GPS.

What I have realised is that the custom board sometimes connects to the internet and sometimes does not. it's just not reliable.

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

Naeem Maroof — Tue, 30 Apr 2024 08:47:14 GMT

Hi Isaiah,

Pls check on the DK whether you are able to do or not.

Also, I hope you might have done review for your board, and if you have not done so far, may I ask you to create a separate ticket just for custom board review.

On the DK, LTE internal/externa antenna connection is done through connector switches (J1, J3)

For the GPS, we have CONFIG_MODEM_ANTENNA_GNSS_EXTERNAL

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

IsaiahTC — Fri, 26 Apr 2024 13:49:55 GMT

Hi Naeem,

I haven't tried on DK. Please let me know the CONFIGs for both LTE and GPS.

I have attached the schematic for the custom board.

cheers,

Isaiahdevzone.nordicsemi.com/.../SACAQM_5F00_Node.pdf

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

Naeem Maroof — Fri, 26 Apr 2024 13:04:48 GMT

Hi Isaiah,

Does it work with the DK? Have you tested that external antenna with the DK?

How different is your custom board?

On the DK, we have 3 antenna connectors (J1, J2, and J3), where J1 and J3 connectors have switches that disconnect corresponding antenna from the radio if adapter cables are connected. For the GPS, we use CONFIG to select onboard or external antenna.

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

IsaiahTC — Thu, 25 Apr 2024 13:07:36 GMT

Hi Naeem,

Thank you, I will be patiently waiting.

Regards

Isaiah

RE: Use external LTE antenna on custom board based on nrf9160 Configurations

Naeem Maroof — Thu, 25 Apr 2024 07:24:01 GMT

I have been assigned this ticket and I will look into this and let you know once I have more information.

Thanks,

Naeem