TXPOWER register

Hi

i am using the sensor demo software on cc2530zdk with zstack 2.5.0. I have changed the original TXPOWER value of the sensor device to the lowest value

// Initialze HAL drivers
  HalDriverInit();

  // Initialize NV System
  osal_nv_init( NULL );

  // Initialize the MAC
  ZMacInit();

  //edited for different power levels
  uint8 txvalue = 0x05 ; //-22dBm
  MAC_MlmeSetReq(MAC_PHY_TRANSMIT_POWER, &txvalue);

and also uncommented the

#define HAL_MAC_USE_REGISTER_POWER_VALUES //uncommented this for manual transmit power

in the mac_radio_defs.h file.

may i know how to check if this is the value the transmitter is using?

Thank you.