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CC2530 CC2591 Increase TX Power

Other Parts Discussed in Thread: CC2591, CC2530, Z-STACKhello Yikai Chen!
after #define HAL_PA_LNA. how to increase txPower.
I have done data transmission in a distance of 10m (indoor) between 2 cc2530 + cc2591 but the distance> 10m (indoor) it cannot transmit data.
How can I improve txPower and increase the distance of transmission?
thanks you