SMS & GNSS With U137 Resource Contention?

[lenswerks]

Does anyone here have any experience with U137 using GNSS and SMS code at same time.?

SMS works as it should if you do not power on GNSS and GNSS works as it should if you do not have any SMS code in your loop. Some sort of resource contention I suppose.

Anyway, has anyone else experienced this or know about it?

Thanks.

[felmue]

Hello @lenswerks

afaik Unit CatM GNSS (U137) uses a SIM7080G which can not use both, a LTE and GNSS, at the same time due to some shared RF circuitry.

See this posting on Stack Overflow.

Thanks
Felix