@axillent
What chip are you using as step-up from the singel cell battery source.
Looks like The pcb antenna of The nrf module is located in The midle of the pcb. Have you tried out The RF range in that placement?
@axillent
What chip are you using as step-up from the singel cell battery source.
Looks like The pcb antenna of The nrf module is located in The midle of the pcb. Have you tried out The RF range in that placement?