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CC2652RB: Skeptical of TX power change

Part Number: CC2652RB


From everything I've read, this code should work. I have an external uA meter at 1mV/uA while the device is connected as a peripheral. As I tick through these cases, power draw doesn't change at all, which is suspicious.

case 0:
	HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_MINUS_20_DBM);
	break;
case 1:
	HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_MINUS_10_DBM);
	break;
case 2:
	HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_0_DBM);
	break;
case 3:
	HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_5_DBM);
	break;
default:
	break;

I've never noticed anything empirically testing the transmission strength, but now I have pretty solid evidence nothing is happening. Am I missing something? This is using SDK 4.40.00.44.