Is there any possibilities to adjust the Tx power with the original firmware.
How to to?
This requires recompiling the firmware with adjusted setting. https://github.com/ruuvi/ruuvitag_fw/blob/351b1eb5b6ff9b9bb6f6f1b99c29ebc915710a18/ruuvi_examples/ruuvi_firmware/bluetooth_application_config.h#L11
Valid values are -40, -30, -20, -12, -8, -4, 0, 4